Answer:
the correct answer is O. x ≤ 1
Step-by-step explanation:
the rest are wrong because of the equal to sign in inequalities
Julia studied math for 3 and 1/3 hours during the 4 days before her last math test. What was the average amount of time she studied each day? Hours
Answer:50 min a day
Step-by-step explanation: julia studied 50 min a day
Shane completed his science project early, he will receive an extra 5% on top of his regular score. He will also receive 10 bonus points. He received a regular score of 80%. Find his score graphically for g(x)=x+0.05
Based on the fact that Shane gets an extra 5% of his regular score, solving for his mark graphically with the equation, g(x) = x + 0.05 will give us the attached graph.
What graph represents Shane's information?The equation for Shane's score is g(x) = x + 0.05.
When interpreted, this graph means that for every point on the x-axis, the corresponding y-value will be 5% more than the x-value.
A score of 74 on the x-axis would correspond with 79 on the y-axis for instance. This is what is shown in the attached graph which makes it the correct graph.
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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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What is the scale in first graph? In the second? Image above
Please help I’ll give you brainlist answer
Answer:
The first one is a scale by 1
The second one is a scale of 2
The third one is scale of 5 starting at 100
Step-by-step explanation:
2(x−2)+5x the simplified answer, need help rn, WILL BRAINLIEST
7x-4
Step-by-step explanation:
2x-4+5x
add
7x-4
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:
6. Max earns television time by completing chores at home. For every 4 chores he completes, he earns 30 minutes of
television time. If Max wants to watch a movie that is 120 minutes long, how many chores does he need to complete
to earn enough television time? Show or explain your reasoning.
7. In science class, students create walking robots. Brian's robot can walk 12 feet in 4 minutes. Isabelle's robot can
walk 20 feet in 8 minutes.
Do the two robots walk at the same speed? If not, whose robot walks faster? Explain or show your reasoning
Answer:
Step-by-step explanation:
Im pretty sure u know this... but i'll do it anyway to get points.
6. 4 chores = 30 minutes of television time
He needs 120 minutes of television time
So he will need to multiply both sides by 4 to get the amount of chores he needs to do to watch the movie.
Therefore, he does 16 chores( 4 x 4 ) to earn enough television time.
7. Make the amount of minutes the same to see how the speed they walk at.
If we convert Isabelle's robot' s speed to feet in 4 minutes, we can just compare both robots normally.
20/2= 10 feet in 4 minutes(Isabelle's robot) < 12 feet in 4 minutes(Brian's robot)
Therefore, Brians robot walks faster.
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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what is the gcf of 28+35 in distributive property
Answer:
Step-by-step explanation:
dude its just 28+35=61
Please do not claim this unless you answer the question.
If the sum of two integers with opposite signs gives a negative result, then the larger absolute value of the two integers was _________
Answer:
The absolute value was negative.
Step-by-step explanation:
I assumed both integers had the same absolute value, and using this info, I came up with negative, because it is the bigger value.
HELP ME ANSWER THESE MATH QUESTIONS PLEASE! I WILL GIVE BRAINLYEST!!!
Answer:
Answer:
1. C and d.
A.13/ 5 miles north and 8 miles east
B.8?( The question makes 80% no sense)
3. 51? (Not sure on this once since 51 isn’t really a child).
4.up 5 back 1 up 5 back 1 (is the pattern)
I hope i got it right! <3
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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please help me i need to figure out which one fast
Answer:
<1≅<3 <2≅<5 <3≅<6
simplify 4 (7 - 3) + 11
A- 42
B- 14
C- 36
D- 27
Answer:
D-27
Step-by-step explanation:
4(7-3)+11
=28-12+11
=28+11-12
=28-1
=27
pls rate as brainliest
Answer:
D 27
Step-by-step explanation:
To simplify 4 (7 - 3) + 11 we have to know the order of operations PEMDAS that has the meaning Parenthesis Exponents Multiplication Division Addition Subtraction.
Apply PAMDAS to our problem 4 (7 - 3) + 11
1. Parenthesis →solve what is in parenthesis 7-3= 4
4 (7 - 3) + 11 =
4 · 4 +11
2. Multiplication and Division →solve the multiplication 4·4 =16
4 · 4 +11 =
16 +11
3. Addition and Subtraction →add 16+11 = 27
16 +11 =
27
vanna bought 4 CDs that were each the same price. Including sales tax, she paid a total of $57.20 Each CD had a tax of $0.80 What was the price of each CD before tax?
Answer:
multiply 57.20×4
Step-by-step explanation:
57.20×4once done you will get 228.20The hypotenuse of right triangle is 130 miles long. The difference between the other two sides is 46 miles.
The required value of the missing side is 66 miles and 20 miles.
What is Pythogoras theorem?It states that the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides.
This theorem can be written as an equation relating the lengths of the legs a, b and the hypotenuse c, often called the Pythagorean equation:
[tex]{\displaystyle a^{2}+b^{2}=c^{2}[/tex]
Now it is given that,
Length of Hypotenuse = 130 miles
Let length of one side = x
Since the difference between the other two sides is 46 miles
Thus, length of second side = x - 46
Applying the pythagoras theorem we get,
Hypotenuse² = one side² + second side²
Putting the values we get,
130 = x² + ( x - 46 )²
Expanding the brackets we get,
16,900 = x² + x² - 92x + 2116
Solving we get,
16,900 = 2x² - 92x + 2116
Or, we can write
2x² - 92x + 2116 - 16,900 = 0
Thus we get,
2x² - 92x - 14784 = 0
Dividing the whole equation by 2 we get,
x² - 46x - 7392 = 0
Solving the above quadratic equation,
x² + 112x - 66x - 7392 = 0
x( x + 112) - 66 (x + 112) = 0
Taking common we get,
(x - 66) (x + 112) = 0
Thus,
x = 66 , -112
Since the length cannot be negative, then
x = 66 miles
Length of second side is
66 - 46 = 20 miles
Thus, the required value of the missing side is 66 miles and 20 miles.
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The complete question is :
The hypotenuse of right triangle is 130 miles long. The difference between the other two sides is 46 miles. Find the missing sides.
Why might Randy put a pile of books under his feet when he's sitting and typing for a long period of time?
Question 4 options:
to keep his chair from rolling away
to make sure the books he needs are nearby
to make sure he's at least 20 inches from his monitor
to keep his feet from dangling
(Please help, I'll brainliest as soon as I can! =D)
Answer:
the answer is to make sure he is at least twenty inches from his monitor.
Step-by-step explanation:
8. Fiona buys different amounts of gas at $2.25. She has a graph which shows the
different amounts she should pay. What constraints are there on the domain of
the function?
Fiona has a function that shows the amount of money she has to pay ( f(.) as a function of the gas the buys (g).
So, the function can be written as: f(g).
As each litter costs $2.25 we can say that;
f(g) = 2.25g
Lets try to find put which constraints the function f(g) has in its domain, it is, what are the restrictions for the values of g.
Is evident that g cannot be negative, as one cannot buy negative liters of gasoline. We can buy any positive amount of gasoline, doesn't matter if it is an integer number or not. it is possible to buy 5 liters and also to buy 5.45454545545454 liters. A zero amount of liters is also possible, having zero cost.
Thus, as any positive or zero value is positive, but negative values are not, we can restrict the domain to every non-negative real number:
Therefore ,Domain(f) = [0, infinite ) or
Domain(f) = Real non negative.
Domains have to be purchased, and they are registered where they are purchased and paid for. You have a Domain Registrant, much like a house has a Home Owner. This person pays the mortgage to keep the house, just like a Domain Registrant has to pay for the domain yearly to keep it.
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Can somone help me with these fractions will give u brainliest :'(
Answer:
<
<
>
Step-by-step explanation:
Answer: >,<,>
Step-by-step explanation:
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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Write the equation of the line that passes through (5, −2) and is perpendicular to y equals 5 thirds times x minus 3 period y equals negative 3 fifths times x plus 1 y equals negative 3 fifths times x plus 19 fifths y equals 3 fifths times x minus 5 y equals 5 thirds times x minus 31 thirds
The equation of the line is: y = -3/5x + 1.
How to Write the Equation of a Line?The slope (m) of two lines that lie perpendicular to each other are negative reciprocals.
Given, y = 5/3x - 3, the slope (m) of the line is 5/3. The negative reciprocal of 5/3 is -3/5.
Thus, the line that is perpendicular to it will have a slope (m) of -3/5.
Substitute m = -3/5 and (a, b) = (5, -2) into y - b = m(x - a):
y - (-2) = -3/5(x - 5)
y + 2 = -3/5x + 3
y + 2 - 2 = -3/5x + 3 - 2
y = -3/5x + 1
Thus, the equation of the line is: y = -3/5x + 1.
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Answer: A a aa a a a a a
Step-by-step explanation:
The point (—7,0) is on the graph of the function y=f(x). Which point cannot be on the graph of y=f(x)?
• (0,0)
• (0,-7)
• (-7,-7)
• (7,0)
What is 4 times as much as 10.
Linear functions model situations that are continually increasing or continually decreasing. Quadratic functions model situations that increase and then decrease, or vice versa.
Polynomial functions can model situations that change directions multiple times. What is a situation in which a polynomial model might make sense, and why?
A situation that can be modeled by a polynomial function is: Velocity of a Formula 1 car during a lap.
When should polynomial functions should be used?Polynomial functions should be used to model situations that change directions multiple times, between increase and decrease.
One possible example is the velocity of the Formula 1 car during a lap, as follows:
Initially, the velocity increases during the start-finish straight.On the approximation to first turn, the velocity decreases as the car breaks.Coming out of the turn, the velocity increases again.At the next breaking point, the velocity decreases.This behavior keeps happening until the end of the lap.
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(x-9)^2+(y+1)^2=15 but translated left 2, up 7
Answer:
if i got locked away , i will always remember , animals , flower , human
Step-by-step explanat
ion:
Answer:
Step-by-step explanation:
Simplify each expression. Match the correct value with each expression. Values may be duplicated
2 + 32
18 – 17 + 1
24 ÷ 4 × 3
21 – 5 × 2
The values of the expression are 34, 2,18 and 11 respectively
Simplifying equations and expression using PEDMASThe meaning of the expression PEMDAS is as shown below;
P is the parenthesis
E is the expoenent
M is the multiplication
D is the division
A is the addition
S is the subtraction
Simplifying the given expression
2 + 32
18 – 17 + 1
24 ÷ 4 × 3
21 – 5 × 2
2 + 32 =2 + (30 + 2)
2 + 32 = 2 + 30 + 2
2 + 32 = 34
For the expression 18 - 17 + 1
18 - 17 + 1 = 1 + 1
18 - 17 + 1 = 2
For the expression 24 ÷ 4 × 3 (Division first then multiplication)
24 ÷ 4 × 3 = (24 ÷ 4) × 3
24 ÷ 4 × 3 = 6 × 3
24 ÷ 4 × 3 = 18
For the expression 21 – 5 × 2
21 – (5 × 2)= 21 - 10
21 – 5 × 2 = 11
Hence the values of the expression are 34, 2,18 and 11 respectively
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12 a of 1/2 - 6a square ÷ 3a + (a+a)
The value of the expression is 6a.
What is an expression?
Expression in math is defined as the collection of the numbers, variables and functions by using signs like addition, subtraction, multiplication, and division.
The expression is given as;
⇒ 12 a of 1/2 - 6a square ÷ 3a + (a + a)
Now, It can be written as;
12a of 1/2 - 6a² ÷ 3a + 2a
And, Solving by BODMAS rule as,
12a of 1/2 - 6a² ÷ 3a + 2a
12a * 1/2 - 6a² ÷ 3a + 2a
12a * 1/2 - 2a + 2a
6a - 2a - 2a
6a
Hence, The value of the expression is 6a.
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A rectangle measures 10 inches by 10 feet. What is the area of the rectangle, in square inches?
Use the dimensional analysis method (that is, do your computation with units).
square inches
Use conversion factors in the References section of this course if you need them.
Answer: it's 100
Step-by-step explanation:
^-^
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 ball is thrown with an initial height of 4 feet with an initial velocity of 36 ft/s. h= 4 + 36t - 16t^2 find the values of t for which the rockets height is 25 meters
The value of t for which the rockets height is 25 meters is 40.7 seconds
How to calculate the time?From the information, the ball is thrown with an initial height of 4 feet with an initial velocity of 36 ft/s. h= 4 + 36t - 16t².
Therefore, the values of t for which the rockets height is 25 meters will be:
h= 4 + 36t - 16t².
where h = 25
25 = 4 + 36t - 16t².
Collect like terms
25 - 4 - 36t + 16t² = 0
16t² - 36t -21 = 0
Using almighty formula
t = 40.7 seconds.
Therefore, the value of t for which the rockets height is 25 meters is 40.7 seconds
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