Answer:
25x = - 1820
x = -72.8
The truck drove 72.8 miles at 45mph and 100-72.8 = 27.2 miles at 20mph
Step-by-step explanation:
The diameter of a semicircle is 2 millimeters. What is the semicircle's area?
d=2 mm
Use 3.14 for a.
sauare millimeters
Given that,
The diameter of a semicircle is 2 mm.
To find,
The area of the semicircle.
Solution,
Radius of semicircle, r = 1 mm
The area of a semicircle is given by the formula as follow :
[tex]A=\dfrac{\pi r^2}{2}\\\\=\dfrac{3.14\times (1)}{2}\\\\=1.57\ \text{mm}^2[/tex]
So, the area of the semicircle is [tex]1.57\ \text{mm}^2[/tex].
A polynomial function of the root of -6 wth multipcily 1, a root of -2 with multiplicity 3, a root of 0 wth multiplicity 2, and a root of 4 wth multiplicity 3. If the function has a positive coefficient and is of odd degree, Which statement about the graph is true?
Find the distance between (3,8) and (7,-11) round to the nearest hundredth
Answer:
[tex]d \approx 19.42[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra II
Distance Formula: [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Point (3, 8)
Point (7, -11)
Step 2: Find distance d
Substitute: [tex]d = \sqrt{(7-3)^2+(-11-8)^2}[/tex]Subtract: [tex]d = \sqrt{(4)^2+(-19)^2}[/tex]Exponents: [tex]d = \sqrt{16+361}[/tex]Add: [tex]d = \sqrt{377}[/tex]Evaluate: [tex]d = 19.4165[/tex]Round: [tex]d \approx 19.42[/tex]Subtract.
Your answer should be a polynomial in standard form.
(d² + 6d +9) - (d^3+ 6d + 9)
Answer:
-d^3 + d^2
Step-by-step explanation:
Create the Subset and Proper Subset of the set A= {1,2,3,4}. Upload your work.
The subset of A is B = {1, 2} and the proper subset of A is C = {1,2,3,4}
How to create the Subset and Proper Subset of the set?The set is given as:
A = {1,2,3,4}
Subsets of a set are sets that can be found in another set
An instance of this is
B = {1, 2}
Because all the elements of set B are in set A
Proper subsets of a set are sets that contain the exact elements found in another set
An instance of this is
C = {1,2,3,4}
Because set C and set A have the same elements
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A random sample of 144 observations has a mean of 20. The population standard deviation is known to equal 4.8. The 95.44% confidence interval for the population mean is
Answer:
The population mean is 19.2 to 20.8.
Step-by-step explanation:
The formula of Confidence interval is
CI = mean ± z*[tex]\frac{s}{\sqrt{n} }[/tex]
where
n = sample size
s = Population standard deviation.
mean = Sample mean
z(α/2) = Two tailed z-value for significance level of .
Given : Confidence level = 95.44% = 0.9544
Significance level = α = 1-0.9544 = 0.0456
Now we Use standard z-value table
z-value for Significance level of 0.0456 :
z(α/2) = z(0.0228) = 1.99 = 2(approximately)
And we are given
n=144
s = 4.8
mean = 20
so the required Confidence interval is
CI = 20± 2*[tex]\frac{4.8}{\sqrt{144} }[/tex]
= 20 ± 2*[tex]\frac{4.8}{12}[/tex]
= 20 ± (0.8)
= (20-0.8, 20+0.8 )
= (19.2 , 20.8)
Therefore the 95.44% CI value for the population mean of 20 is 19.2 to 20.8.
question one pls
algebra 2
logarithms
Condense the logarithm on the right side:
[tex]3\log_b(p)-\left(2\log_b(t)+\dfrac12\log_b(r)\right)[/tex]
[tex]n\log_b(m)=\log_b(m^n) \implies \log_b(p^3)-\left(\log_b(t^2)+\log_b\left(r^{\frac12}\right)\right)[/tex]
[tex]\log_b(m)+\log(n)=\log_b(mn) \implies \log_b(p^3)-\log_b\left(t^2r^{\frac12}\right)[/tex]
[tex]\log_b(m)-\log(n)=\log_b\left(\dfrac mn\right) \implies \log_b\left(\dfrac{p^3}{t^2r^{\frac12}}\right)[/tex]
So,
[tex]x=\dfrac{p^3}{t^2r^{\frac12}}[/tex]
and [tex]r^{\frac12}=\sqrt{r}[/tex], which makes (4) the correct choice.
12x + 14 + 3x - 5
I need help
Answer:
15x + 9
General Formulas and Concepts:
Algebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define
12x + 14 + 3x - 5
Step 2: Simplify
Combine like terms (x): 15x + 14 - 5Combine like terms (Z): 15x + 95 over nine converted into decimal
Answer: See attached
Step-by-step explanation:
5/9 will give a repeating decimal 0.55555. You would write it as 0.5 with a "bar" line over the 5. See attached file of how it looks
Match each graph to its equation. 1. y = 2x - 3 2. y = -2x + 3 3. y = 2x + 3 4. y = -2x - 3
Answer:
There you are, hope this helps.
The required graph of the equation has been shown,
To draw the graph of the given equaiton,
1. y = 2x - 3 2. y = -2x + 3 3. y = 2x + 3 4. y = -2x - 3
The graph is a demonstration of curves that gives the relationship between the x and y-axis.
Here,
1. y = 2x - 3
The slope is m = 2 and has a negative y-intercept of -3
2. y = -2x + 3
The slope is m = -2 and has a y-intercept of 3
3. y = 2x + 3
The slope is m = 2 and has a y-intercept of 3
4. y = -2x - 3
The slope is m = -2 and has a y-intercept of -3
Thus, the required graph of the equation has been shown,
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The volume of a pyramid is 650. Calculate the dimensions of the base of the square if the pyramid has a height of 15.
Answer:130
Step-by-step explanation:
Ray was in charge of filling the soccer team’s water jug for practice. At the beginning of practice he filled the jug. Halfway through practice the team took a water break. After the break Ray refilled the jug so the players could have water after practice. At the end of practice Ray drained the jug. Which graph could represent the level of the water in the jug during and after practice?
Answer:
D
Step-by-step explanation:
I took the exam
Based on the times that Ray filled the water jug and the times it was drained, the best graph to show the water level is Graph 4.
What does Graph 4 show?In the 4th graph, the water level increases at the beginning to a stable level. It doesn't change till halfway through the graph which is most likely when the team took a water break.
The water level then rises to a similar level which shows Ray refilling the water jug. At the end of the practice, Ray empties the jug which is why the water level then goes the zero.
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1. By definition, sea level has an elevation of zero. Denver, Colorado is called "The Mile High
City" because its elevation is 5280 feet above sea level. Use a text box to type or the drawing
tool to write. Goal 3 (6.NS.5)
a. Calipatria, California has an elevation of 180 feet below sea level. What integer would
represent this elevation?
b. How many feet higher is Denver than Calipatria?
Answer:
pp
Step-by-step explanation:
pp
On a coordinate plane, 2 lines intersect at point (negative 1, 2). Which ordered pair is the solution of the system of equations shown in the graph?
Answer:
C) (-1,2)
Step-by-step explanation:
I got it right on edg 2020
Answer:
(-1,2)
Step-by-step explanation:
edge
What is the quotient of 480 divided by -60
The quotient when 480 is divided by -60 is 8.
What is Division?Division is one of the operation in mathematics where number is divided into equal parts as that of a definite number.
The numbers given are 480 and -60.
Both are in opposite signs, that is one negative and other positive.
So the quotient will be negative.
Now divide 480 by 60.
Since both of the numbers contain 0 at the end, cancel it.
Then it becomes 48 divided by 6.
48 / 6 = 8
Hence the quotient is 8.
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Evaluate the following expression. 7 1/4 x 2^2 +(8 1/2 -2) ÷ 3
Answer:
31.1666666667
Step-by-step explanation:
Caculator
Solve for x. Round to the nearest tenth.
Answer:
x=14.08
Step-by-step explanation:
a=5
b=6
a+b+7=__
1A 18
2B 17
3 C 15
Answer: 18
Step-by-step explanation: 5+6+7=18
Answer:
18
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
a + b + 7
a = 5
b = 6
Step 2: Evaluate
Substitute: 5 + 6 + 7Add: 11 + 7Add: 18Write a number sentence that illustrates the following. A number with two decimal places multiplied by a number with one decimal place. The product has only two nonzero digits. Choose the correct answer below.
A. 0.08 x 0.6 = 0.48
B. 0.08 x 0.6 = 0.0048
C. 0.8 x 0.6 = 0.48
D. 0.08 x 0.6 = 0.048
Answer:
D
Step-by-step explanation:
1. Classify the triangle shown to the right.
A. Right, Scalene
97
B. Acute, Isosceles
th
C. Obtuse, Scalene
13°
70°
D. Equiangular, Equilateral
Drag one or more expressions into each box to
create an equation that is true for all values of x. (Assume no
denominator equals zero.)
3+4+2
4
+
1 + 2
Preset Choices:
X
x2
(x + 2)
x(x + 2)
x²(x + 2)
Answer:
the right answer is x(x+2)
Please help i need answers for my assignment
Answer:
1) $14, 2) please see explanation below 3) please see explanation below
Step-by-step explanation:
1.
a) about $15-$1
b) Higher, because the estimate lowered the price that is being subtracted.
c) 15-1=14
Pedro has about $14 left over.
2.
a) 3 is the closes because to solve this question you divide 100.8 by 35. The product is 2.88, thus supporting that 3 is the closes answer.
b) 8 is the closes because to solve this question you divide 49.2oz by 6. The product is 8.2.
c) 0.04 is the closes because to solve this question you divide 20 by 0.78, resulting in 0.039.
3.
a) 2.49 times 6 = 14.88
His parents spent $14.88 on goodie bags
b) 150 divided by 8 = 18.75
His parents spent $18.75 per hour for the bounce house.
c) 14.88 + 18.75 = 33.63 and 182.53 - 33.63 = 148.90
His parents spent $148.90 on his birthday party excluding the goodie bags and bounce house
HOPE THIS HELPS <33333
-Silver
The graph below shows a proportional relationship between x and y.
What is the constant of proportionality,
y/x?
Answer:
3.5Step-by-step explanation:
Use point (1, 3.5) on the graph
x = 1, y = 3.5
y/x = 3.5/1 = 3.5k = 3.5
at bingo Carol won 13 out of 25 games that she played . What percent of the games did she win?? ASAP
How can proportional reasoning help solve a problem?
At 3 P.M., the temperature was 9 degrees fahrenheit. By 11 P.M., it had
dropped 31 degrees fahrenheit. What was the temperature at 11 P.M.?*
Answer: -22 degrees
Step-by-step explanation:
Which of the following would be a good name for the function that takes the length of a race and returns the time needed to complete it?
A. Time(race)
B. Time(length)
C. Length(time)
D. Cost(time)
Answer:
B. Time(length)
Step-by-step explanation:
The function that would be represented as a good name for a function for the length of the race and the return the time required to finished it
here the independent variable or the INPUT is the length while the output would be the time that required to finish it
Hence, the correct option is B,
Therefore all the other options would be incorrect
2 groups of 3 tenths pls answer today I need this answer
Answer:
6/10
Step-by-step explanation:
2 groups of 3/10 =
2 × 3/10 =
6/10
what fraction is equivalent to 1.5/9
Answer:
1.5/9 = 1 1/2 / 9 = 3/2 /9 = 3/18 = 1/6
Step-by-step explanation:
The fraction that is equivalent to 1.5 / 9 is expressed as:
3/18.
How to Find the Equivalent Fraction?Equivalent fractions are different fractions that represent the same value or proportion, although they may have different numerators and denominators.
To find an equivalent fraction for 1.5/9, divide both the numerator and denominator by their greatest common divisor (GCD), which in this case is 0.5.
Dividing 1.5 by 0.5 and 9 by 0.5, we will have the following:
(1.5 ÷ 0.5) / (9 ÷ 0.5) = 3/18
Hence, the equivalent fraction for 1.5/9 is 3/18.
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The graph represents the fees in thousands of dollars,
y, depending on the amount invested in millions, x,
with one financial investment firm.
Over what interval is the change constant?
[0,5)
(1,5)
[0, 20)
[1, 20)