The missing steps of the expression are as follows;
[tex](\frac{9 + 4 }{0.25} ) - 10.4[/tex] ÷452 - 10.4 ÷ 4How to solve an expression?The expression can be solved as follows:
step 1
[tex](\frac{3^{2} + 4 }{|-0.25|} ) - 10.4[/tex] ÷ 4
Step 2
The absolute value will remove the minus sign of the denominator.
[tex](\frac{3^{2} + 4 }{0.25} ) - 10.4[/tex] ÷ 4
Step 3
We have to find the square of the 3 in the numerator. Therefore, the step 3 will be as follows:
[tex](\frac{9 + 4 }{0.25} ) - 10.4[/tex] ÷ 4
Step 4
We have simplify the numerator.
[tex](\frac{13 }{0.25} ) - 10.4[/tex] ÷ 4
Step 5
52 - 10.4 ÷ 4
Step 6
Using PEMDAS rule, we have to solve the division sign. Therefore, the step 6 is as follows;
52 - 2.6
Step 7
49.4
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4. What angle measures larger than 90 degrees, but less than 180 degrees? A reflx B straight C obtuse D right
Answer:
C obtuse
Step-by-step explanation:
An Obtuse angle measures more than 90° but less than 180°. A Straight angle or a half turn is always 180 °. Reflex is the next largest measuring more than 180° but less than 360°.
12. A town’s most popular drive-in restaurant has 2,500 followers on a social networking website. The town’s high school athletic program has 1.5 104 followers on the same website. Which is more popular according to this data, the drive-in or the athletic program? Show your work. Use standard notation. __________________________________
Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form. The athletic program is more popular.
What is scientific notation?Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form.
Given that,
A town’s most popular drive-in restaurant has 2,500 followers on a social networking website.
The town’s high school athletic program has 1.5* 10^4 followers on the same website.
We need to find which is popular among both the programs.
Athletic program views=1.5* 10^4=15000.
Drive in has views 2,500
15000>2500
Therefore athletic program is more popular according to the given data.
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There is a bell at the top of the tower that is 50m high.The bell weight 180N. The has ___ energy
(Can u pls use GRESA?)
There is 9,000 Joule energy present in the bulb
Gravitational Potential Energy
The energy that an object store due to its height in a gravitational field is known as gravitational potential energy.
It can be calculated by using the equation below
U=m.g.h
Where:
m = mass of the object
h = height
g = acceleration due to gravity, or
Since the weight of an object of mass m can be calculated as:
W = m.g
The gravitational potential energy is:
U = W.h
The bell of weight W=180 N at the top of a tower is h=50 m high. Thus its energy is:
U = 180 N * 50 m
U = 9000 Joule
Hence, The bell has 9,000 Joule energy.
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Suppose you would like to make pancakes according to the given recipe:
Blueberry Pancakes Recipe, makes 6 servings
2 cups flour
2 tablespoons baking powder
1 teaspoon salt
2 eggs
1 1/2 cups milk
1 1/4 cups blueberries
Convert the amount of each ingredient of the recipe to make 15 servings. Round any decimal answers to two places.
Hint: You may want to make use of the conversion factor 15/6.
Answer:
4 1/2 cups of flour
4 1/2 tablespoons baking powder
4 1/2 teaspoon salt
4 1/2 eggs
5 cups of milk
5 cups of blueberries
Step-by-step explanation:
The sinking of the Titanic on April 15, 1912, is one of the most infamous disasters in history. A population of 1503 passengers and crew died when the Titanic sank
approximately 400 miles south of Newfoundland, Canada. Identify whether the given value is a statistic or a parameter.
Choose the correct answer below.
OA. The value is a parameter because it describes some characteristic of a sample.
OB. The value is a parameter because it describes some characteristic of a population.
C. The value is a statistic because it describes some characteristic of a sample.
OD. The value is a statistic because it describes some characteristic of a population.
The given value, 1,503 passengers which represents the number of individuals that died according to the task content is; Choice B; The value is a parameter because it describes some characteristic of a population.
What is the difference between a parameter and a statistic?A parameter, in its simplest definition is a measure which describes a characteristic or feature of a population, for instance, the mean of the population.
A statistic on the other hand is a measure of the characteristic or feature of a sample such as a sample standard deviation.
On this note, the number 1503 as given in the task content is a parameter as it describes some characteristic of a population.
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There were 299 tickets sold for a basketball game. The activity cardholders' tickets cost $1.25 and the
non-cardholders' tickets cost $2.50. The total amount of money collected was $563.75. How many of each kind of
ticket were sold?
Answer:
non-cardholder: 152
cardholder: 147
Step-by-step explanation:
Lets make a system of equations
c=cardholder
n=non-cardholder
1. c + n = 299
2. 1.25c + 2.50n = 563.75
Write 1 as n = 299-c
Write 2 as cents, 125c + 250n = 56375
n= 299-c
125c + 250n = 56375
Substitute n with 299 - c
125c + 250(299-c) = 56375
125c + 74750 - 250c = 56375
74750 - 125c = 56375
125c = 18375
c = 147
n = 299 - c
n = 299 - c = 152
Hope this helps :)
Have a nice day!
Cheryl sees a shirt she wants to buy that cost $32.00.Sales tax is 8%. She used the expression 1.08p to calculate the total cost of the shirt with taxes using p as the price of the shirt before taxes.What its the final price Cheryl will pay for the shirt including taxes?
The final price Cheryl will pay for the shirt, using the mathematical expression that includes the sales tax, is $34.56.
What is a mathematical expression?A mathematical expression is a mathematical statement with two different numbers (known or unknown) and at least one mathematical operation.
The basic mathematical operations include addition, subtraction, division, and multiplication.
For, instance, the total cost of a T-shirt after factoring in the sales tax of 8% can be represented with this mathematical expression, T= 1.08p.
Data and Calculations:Cost of a shirt, p = $32
Sales tax = 8%
The mathematical expression of the total cost = 1.08p
The total cost = $34.56 ($32 x 1.08)
Thus, the final price Cheryl will pay for the shirt is $34.56.
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A group of 66 randomly selected students have a mean score of 22.4 with a standard deviation of 2.8 on a placement test. What is the 90% confidence interval for the mean score, μ, of all students taking the test? 21.5 < μ < 23.3 21.8 < μ < 23.0 21.6 < μ < 23.2 21.7 < μ < 23.1
The 90% confidence interval for the mean score, μ, of all students taking the test is B. 21.8<u<23.0
How to illustrate the information?Given a=0.1, Z(0.05)=1.645 (from standard normal table)
So 90% confidence interval is
xbar+/-Z*s/vn
= 22.4+/-1.645*2.8/sqrt(66)
= (21.83304, 22.96696)
Therefore, the 90% confidence interval for the mean score, μ, of all students taking the test is 21.8<u<23.0.
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8.
Find the measure of the arc or central angle indicated. Assume that lines which appear to be diameters are actual diameters.
The measure of the central angle m∠UQR is 130 degrees.
How to find central angles?Central angle is the angle formed by two arms and having the vertex at the centre of a circle.
The diameter of a circle runs from the centre of a circle.
The diameter SU and RT intersect each other at point Q.
Therefore,
m∠UQT = m∠RQS (Vertically opposite angles)
m∠UQR = m∠TQS (Vertically opposite angles)
Hence,
m∠RQS = 50°
Therefore,
m∠UQR = 360 - 50 + 50 / 2
m∠UQR = 360 - 100 / 2
m∠UQR = 260 / 2
m∠UQR = 130°
Therefore, the measure of the central angle m∠UQR is 130 degrees.
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CHAPTER 6
QUESTIONS 5 AND 6
The rotation of 90° counterclockwise is-
Part 5) The correct option is C.
Part 6) The correct option is A.
What is meant the rotation of 90° counterclockwise?A rotation is a transformation which revolves an object around a fixed point known as the centre of rotation.
An object as well as its rotation have the same size and shape but the figures can be rotated in different directions.When we rotate a figure 90 degrees counterclockwise, we must change each point from (x, y) to (-y, x) as well as graph the rotated figure.For the given questions;
Part 5) rotation of 90° counterclockwise for ABCD
The position of the figure ABCD after the rotation of 90° counterclockwise is shown by option C. The coordinates of E after rotation will be at (-2,0).
Part 6) rotation of 90° counterclockwise for ABCD
The position of the figure ABCD after the rotation of 90° counterclockwise is shown by option A. The coordinates of B after rotation will be at (6,4).
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Please help me 74-23=
Answer:
51
Step-by-step explanation:
Itsssssssssssss 51 ezyyy
Answer:
51 is correct Answer. Please mark me as brainlist answer.
A 39.2 g sample of copper took
up the 4.4 cm3 of space.
What is the density of the
copper piece in g/cm3?
[?] g/cm³
Record your answer to the tenths place.
Density (g/cm³)
The density of the copper piece is 17. 82g/cm³
How to determine the density
The formula for determining density is expressed as;
D = m/ v
Density is denoted with rho 'ρ'
Where;
m is the mass of the object = 39.2 g v is the volume occupied by the object = 4.4 cm³Substitute the values into the formula
Density, ρ = 39. 2/ 4. 4
Divide through
Density, ρ = 17. 82 g/cm³
The density of the copper piece is 17. 82g/cm³
Thus, the density of the copper piece is 17. 82g/cm³
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Skylar's monthly bank statement showed the following deposits and withdrawals: $107.51, $102.07, -−$99.71, -−$17.66, $110.57 If Skylar's balance in the account was $80.83 at the beginning of the month, what was the account balance at the end of the month?
The account balance at the end of the month is $283.61
What distinguishes withdrawals from deposits?
The deposits into the bank would increase the balance, hence, they have positive sign whereas the withdrawals would decrease the balance since their sign is negative, in other words, we can determine the account balance at the end of the month by adding deposits to beginning balance and deducting all withdrawals
ending balance=beginning balance+ deposits-withdrawals
beginning balance=$80.83
total deposits=$107.51+$102.07+$110.57
total deposits=$320.15
total withdrawals=-$99.71-$17.66
total withdrawals=-$117.37
ending balance=$80.83+$320.15-$117.37
ending balance=$283.61
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Which is
the features of function g if g(x)=log(x+ 2)
For the function g(x) we have:
Domain: x > -2Range: set of all real numbers.y-intercept = 0.3Which are the features of the given function?There are multiple features we can find, in this case, the most important ones are:
Domain.
Y-intercept.
Range.
First let's find the domain.
We know that logarithmic functions can be only evaluated in arguments larger than zero, so:
x + 2 > 0
x > -2
The domain is the set of all real numbers larger than -2.
Now the range is trivial, for all logarithmic functions the range is the set of all real numbers.
Finally, for the y-intercept we need to evaluate in x = 0, so we get:
y-intercept = log(0 + 2) = log(2) = 0.3
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The mass of planet earth is about 5.98x[tex]10^{24}[/tex] kilograms. When this number is written in standard notation, how many zeros are in the number
Answer:
there are 22 zeros when the number is written in standard notation.
The vertices of a rectangle are A(− 4, 2), B(3, 2), C(3, − 5), and D(− 4, − 5). If the rectangle is dilated by a scale factor of 3, what will be the coordinates of vertex C′?
By using a dilation around the origin, the coordinates of vertex C' are C'(x, y) = (9, - 15).
What are the coordinates of a vertex of a rectangle?
In this problem we find the four vertices of a rectangle and a scale factor and we are asked to determine the coordinates of the image of one of its vertices by using a dilation. Under the assumption of dilation about the origin, then the transformation rule is defined below:
C'(x, y) = 3 · C(x, y)
Where:
C(x, y) - Coordinates of the original point.C'(x, y) - Coordinates of the resulting point.If we know that C(x, y) = (3, - 5), then the coordinates of vertex C' are:
C'(x, y) = 3 · (3, - 5)
C'(x, y) = (9, - 15)
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help asap please!!! points!!
What is the standard deviation for the set of data { 6,7,8,9,10}? Find the standard deviation by completing the table.
The steps given to find the standard deviation of the data-set are as follows:
n = 5.[tex]\sum x = 40[/tex][tex]\bar{x} = \frac{\sum x}{n} = 8[/tex][tex]\sum (x - \bar{x})^2 = 10[/tex][tex]\frac{\sum (x - \bar{x})^2}{n} = 2[/tex][tex]\sqrt{\frac{\sum (x - \bar{x})^2}{n}} = 2[/tex]What are the mean and the standard deviation of a data-set?The mean of a data-set is given by the sum of all values in the data-set, divided by the number of values.The standard deviation of a data-set is given by the square root of the sum of the differences squared between each observation and the mean, divided by the number of values.For this problem, the are 5 values, hence:
n = 5.
The sum of the values is given by:
6 + 7 + 8 + 9 + 10 = 40.
Hence:
[tex]\sum x = 40[/tex]
The mean is given by:
40/5 = 8.
Hence:
[tex]\bar{x} = \frac{\sum x}{n} = 8[/tex]
The sum of the differences squared between each observation and the mean is:
(6 - 8)² + (7 - 8)² + (8 - 8)² + (9 - 8)² + (10 - 8)² = 10.
Hence:
[tex]\sum (x - \bar{x})^2 = 10[/tex]
Dividing by the number of values, we have that 10/5 = 2, hence:
[tex]\frac{\sum (x - \bar{x})^2}{n} = 2[/tex]
Taking the square root, the standard deviation is:
[tex]\sqrt{\frac{\sum (x - \bar{x})^2}{n}} = 2[/tex]
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Easy significant digits question
The number of significant figures in the number 6.4×10³ are two which is '6 and 4'.
Significant figures notation is the method of determining the numbers in any representation which are necessary and holds some specific value. All the numbers which do not hold any specific value or position are not considered as significant figures. There are certain rules to determine the significant figures. These rules are that all non-zero numbers are significant, zeroes between two non-zero number are considered significant, zeroes before non-zero number are not significant.
In the question the number 6.4×10³ has only two significant digits which is '6 and 4' and the number 10 and 4 will not be counted as significant digits.
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determine the are of the circle, given each measurement . use 3.14 for pi and round to the nearest hundredth
Using 3.14 as the value of pi, and radius of 10, the area of the circle is given as 314.00 inches
How to solve for the area of a circleThe formula for the area of a circle is given as
πr² in terms of radius, r.
The radius is related to the diameter, d by r = d/2. so the area of a circle can also be in terms of the diameter, which is given as
πd²/4 in terms of diameter of a circle
We have been given the radius of the question as 10
When we add this to the formula we would have
Area = 3.14 x 10²
= 3.14 x 10 x 10
= 314.00
Hence we can conclude that the radius of a circle as 10 inches, the area of a given circle to the nearest hundred is 314.00 in²
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Complete question
Determine the area of the circle, given each measurement. Use 3.14 for Pi and round to the nearest hundredth.
Radius: 10 in.
A=_____in^2
In the 2017 LPGA season, golfer Lexi Thompson had a driving accuracy of 68%. That is, her drives landed in the fairway on 68% of her tee shots. However, in the U. S. Open tournament, she hit the fairway on only 34 of her 56 attempts. Does this PERFORMANCE provide convincing evidence that Thompson's ABILITY to hit the fairway decreased in this tournament? The video below works this problem out. (a) Assuming that Thompson's Ability to hit the fairway during the season was 68%, state the appropriate null and alternative hypotheses. (b) Explain what it means if the null hypothesis is true. (c) Describe the evidence for the alternative hypothesis. (d) Provide two explanations for this evidence.
Using the z-distribution, it is found that:
a) The null hypothesis is [tex]H_0: p \geq 0.68[/tex] and the alternative hypothesis is [tex]H_1: p < 0.68[/tex].
b) A true null hypothesis would mean that there is not enough evidence that her ability has decreased.
c) There is not enough evidence for the alternative hypothesis.
d) This is because the test statistic is less than the critical value, and the p-value is greater than 0.05.
What are the hypothesis tested?At the null hypothesis, it is tested if there is not enough evidence that her ability has decreased, that is, the proportion is still of at least 68%, hence:
[tex]H_0: p \geq 0.68[/tex]
At the alternative hypothesis, it is tested if there is enough evidence that her ability has decreased, that is, the proportion is less than 68%, hence:
[tex]H_1: p < 0.68[/tex]
Hence:
A true null hypothesis would mean that there is not enough evidence that her ability has decreased.
What is the test statistic?The test statistic is given by:
[tex]z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}[/tex]
In which:
[tex]\overline{p}[/tex] is the sample proportion.p is the proportion tested at the null hypothesis.n is the sample size.For this problem, considering the situation described, the parameters are given as follows:
[tex]p = 0.68, n = 56, \overline{p} = \frac{34}{56} = 0.6071[/tex]
Hence the test statistic is:
[tex]z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}[/tex]
[tex]z = \frac{0.6071 - 0.68}{\sqrt{\frac{0.68(0.32)}{56}}}[/tex]
z = -1.17.
What is the critical value and what it the conclusion?Considering a left-tailed test, as we are testing if the proportion is less than a value, the critical value is given by:
z* = -1.645.
The test statistic is less than the critical value, meaning that the p-value is greater than the standard significance level of 0.05 and there is not enough evidence for the alternative hypothesis.
Hence:
c) There is not enough evidence for the alternative hypothesis.
d) This is because the test statistic is less than the critical value, and the p-value is greater than 0.05.
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(-6.8)(-0.06) Multiply
Answer:
0.408
Step-by-step explanation:
Convert -6.8 and -0.06 to 34/5 and 3/50(The math explains why)
[tex]0 - 68/10 \times 0 - 3/50\\0 - 34/5 \times (-3)/50\\= 51/125\\= 0.408[/tex]
Answer: 0.408
Step-by-step explanation:
What is 4 times as much as 10.
The width of a rectangle measures (2.4d - 7.6f) centimeters, and its length
measures (7.2d-4.9f) centimeters. Which expression represents the perimeter, in
centimeters, of the rectangle?
the expression that represents the perimeter of the rectangle is 19d-5.4f.
What is periemeter?Perimeter can be defined as the total distance around an object.
To calculate the expression representing perimeter of the rectangle, we use the formula below.
Formula:
P = 2(l+w).............. Equation 1Where:
P = Perimter of the rectanglel = Length of the rectanglew = width of the rectangleFrom the question,
Given:
l = (2.4d-7.6f) cmw = (7.2d-4.9d) cmSubstitute these values into equation 1
P = 2[(2.4d-7.6f)+(7.2d-4.9f)]P = (4.8d-15.2f)+(14.2d-9.8f)P = 19d-5.4fHence, the expression that represents the perimeter of the rectangle is 19d-5.4f.
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The amount of monthly data usage by sample of 10 cellphone users (in GB) is shown below: 4.7,6.3,2.5 GB, 0.8, 1.8,7.8,0.7, 1081,0.6,4.6 Identify potential irregularities in the data. Identify potential irregularities Select all that apply: The seventh value The eighth value The sixth value The ninth value The second value The fifth value The first value The third value The tenth value The fourth value
The potential irregularities in the given data are; The third term and the eight term.
What is the Outlier of the given data?
An outlier is an observation that lies an abnormal distance from other values in a random sample from a population.
Now, we are given the amount of monthly data usage by sample of 10 cellphone users (in GB) as: 4.7, 6.3, 2.5 GB, 0.8, 1.8, 7.8, 0.7, 1081, 0.6, 4.6.
By careful observation, we can tell that majority of the 10 samples are decimals and less than 10. Thus, the first irregularity or outlier is 1081.
Now, the given data is said to be all in GB and as such there is no need to still add GB to 2.5. Thus, the second irregularity or outlier is 1081.
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My answer is correct or no help me please
Answer:
Yes, you are correct.
We are told that he stops 5 times in total after walking equal distances per stop, meaning he split the total distance he had to walk into 5 parts.
The length of the distance between one stop to another would be equal to [tex]\frac{2250}{5}[/tex].
Is the digit in hundreds place 1/10 the value of the digit in the thousands place 5568
The statement that the digit in hundreds place is 1/10 the value of the digit in the thousands place 5568 is correct.
What is place value?
Place value is defined as the value that is represented by a digit in a number based on of its position in the number.
It is known as the exact value of each digit in a number.
It is also known as the position of digits in a given number set.
Example;
The place value of 5 in 50 is tens
The place value of 2 in 200 is hundreds
The place value of 0 in 50 is unit
From the information given, we have;
5568
Place value of 5 in hundreds is 500Place value of 5 in thousands is 5000Now, let's take the ratio
= 500/ 5000
= 1/ 10
Thus, the statement that the digit in hundreds place is 1/10 the value of the digit in the thousands place 5568 is correct.
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Sarah goes to the grocery store and buys
four packs of gum. Sales tax in
Connecticut is 6.35%. If g is the price of a
single pack of gum, write a function p(g)
to model the scenario.
Based on the fact that sales tax in Connecticut is 6.35%, the price of a single pack of gum can be shown by the function, p(g) = 4g + 0.254g
What is the function?The price of a single pack of gum is g and Sarah bought 4 packets.
The total cost of her purchase is:
= (4 x price of single pack) x ( 1 + Sales tax rate)
When expressed in terms of g, the function is:
= 4g x (1 + 6.35%)
p(g) = 4g + 0.254g
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2(x−2)+5x the simplified answer, need help rn, WILL BRAINLIEST
7x-4
Step-by-step explanation:
2x-4+5x
add
7x-4
What is the quotient of 7.326 ÷ 0.3?
24.42
Step-by-step explanation:
What is a Quotient?Quotient can be defined as the result when a number is divided by another number.
Here, the Dividend = 7.326; Divisor = 0.3
7.326 ÷ 0.3 = 24.42
This shows that 7.326 is not exactly divisible by 0.3
Therefore, quotient = 24.42
There are 45 marbles in a jar, and 80% of them are blue. How many blue marbles are in the jar?
If 80 % (percentage) of marbles are blue then there are 36 blue marbles.
Percentage is the process of representing parts of a number by dividing the number into equal hundreds.
If the total amount is equivalent to 100 then the percentage denotes the number which is identical to the part of the number. In other words percentage denoted as % is part of 100.
The process of converting a part into percentage is by dividing the part by the total amount and multiplying the result by 100.
Now the total number of marbles in the jar is 45 and 80% of them are blue.
Now let us consider this :
so 80% of 45 = 80/100 × 45
or, blue marbles = 36
Hence the number of blue marbles is 36.
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