Is the equation true or false when x = 4? (3−x28)⋅12=3x(3−x28)⋅12=3x true false

Answer:6

Step-by-step explanation:

By going on a calculator and typing 81 then click divide then press 13.5

Answer:

a = 14.73

Step-by-step explanation:

This ratio can also be written like this:

[tex]\frac{a}{27} = \frac{6}{11}[/tex]

Then you can cross multiply to get

11a = 6 x 27

11a = 162

Divide both sides by 11

11a / 11 = 162 / 11

a = 14.73

Answer:

24 question total

Step-by-step explanation:

[tex]\frac{0.25}{6}=\frac{1}{x}[/tex]

im here to help :)

Red

Answer:

24 problems were on the test

Step-by-step explanation:

6/24 =1/4 =25%

18/24=3/4=75%

If (fail) test were 25% were6 problems wrong, and 25% is 3 times less than 75%, then 18 is 3x6=18 problems correct

Answer:

false  

Step-by-step explanation:

the square root is 10

Answer:

First one equals 16, second equals 4

Step-by-step explanation:

b*20=20b

320/20=16

Second

320/(b*20)

Replace b with 4 so it would be 320/(4*20)

4*20=80, 320/80=4

Answer:

c 60.5 ft x 2ft

Step-by-step explanation:

60.5 ft x 2 = 121 ft

The required possible side length of the tablecloth is 11ft x 11ft.

Given that,
Mrs. Sullivan wants to make a square tablecloth for her dining room table. She has 121 ft? of fabric. What are the possible side lengths of the tablecloth to be determined.

A square is for sided regular polygon, where the length of all sides is identical and the angle between the adjacent side is 90°.

Here,
She has 121 ft² of fabric.
She wants to make a square tablecloth for her dining room table.\

Area of the square = a²
121 = a²
a = √121
a = 11 ft

Thus, the required possible side length of the tablecloth is 11ft x 11ft.

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Answer: x>-1

Step-by-step explanation: I know this because I solved this equation. I know that is not a good explanation but I know it is right.

Answer:

x > -1

Step-by-step explanation:

-2x + 3 < 5

subtract 3 from both sides of inequality

-2x < 2

divide both sides of inequality by -2. Keep in mind whenever you divide or multiply by a negative number to both sides of inequality the symbol flips.

x > -1

Answer:

in the pic below!!

Step-by-step explanation:

Answer:

thats a lot of words

Step-by-step explanation:

Answer:

19

Step-by-step explanation:

Answer:

1/25

Step-by-step explanation:

Answer:

Step-by-step explanation: The absolute value of 58 is the distance between 58 and 0 on a number line. See illustration below where x is 58: Since the distance between 58 and 0 on a number line is 58, we get the answer as follows: |58| = 58. Note that the absolute value of 58 can also be written as abs (58) which may be useful to know if you have a good calculator.

Answer:

75.63%

Step-by-step explanation:

Answer:

3.5 (D)

Step-by-step explanation:

focusing on the right side of the decimal, 5 rounds 5 to 6. 6 rounds 4 to 5. Anything 5 or above rounds up! So the .5 rounds 4 to 5, making the answer 3.5. So sorry if this doesn't make sense, its kind of hard to explain.

Answer:

did you ever fine out the answer to this lol

Step-by-step explanation:

Oil is spilled onto a kitchen floor. The area covered by the oil at time t is given by the function A, where A(t) is measured in square centimeters and t

is measured in seconds. The rate at which the area covered by the oil is changing at time t = 10 is  A'(10).

Given that:

To determine the rate at which the area covered by the oil is changing with time, we need to differentiate  A(t) with respect to time t.

∴

By differentiation:

[tex]\mathbf{\dfrac{dA}{dt} =A'(t)}[/tex]

∴

[tex]\mathbf{\dfrac{dA}{dt} \Big| _{t=10}=A'(t)\Big|_{t=10}}[/tex]

[tex]\mathbf{\dfrac{dA}{dt} =A'(10)}[/tex]

Therefore, we can conclude that the rate at which the area covered by the oil is changing at time t=10 is  A'(10).

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Answer:

$36

Step-by-step explanation:

20(1.80) = 36

Answer:

7.3%

Step-by-step explanation:

to get this percentage, we need to use the z-score calculation;

z-score = (x-mean)/SD

mean = 25.10 , SD = 0.2

For diameter 24.60

z-score = (24.6-25.10)/0.2 = -0.5/0.2 = -2.5

For diameter 25.40

z-score = (25.4-25.1)/0.2 = 1.5

So the proportion that will satisfy the specifications will be;

P(-2.5 < z < 1.5)

At this point, we use the standard normal table

P(-2.5 < z < 1.5) = P (z<1.5) - P (Z < -2.5)

From standard normal table;

P(Z < 1.5) = 0.9332

P(z < -2.5) = 0.0062

P(-2.5 < z < 1.5) = 0.9332 - 0.0062 = 0.927

So the proportion that meets specification = 92.7% ( same as 0.927)

Proportion failing to meet specification = 100- 92.7% = 7.3%

Answer: The percentage of ball bearings fail to satisfy the contract specifaction is 7.3 %.

Step-by-step explanation:

First we need to find the standard score of 24.60 and 25.40. Using Standard Score formula.

[tex]\frac{24.60 - 25.10}{.20} =-2.5\\\\\frac{25.4 - 25.10}{.20}=1.5[/tex]

now we need to find the percentages of these Z scores.

-2.5 = .0062 or 00.62%

1.5 = .9332 or 93.32%

now we subtract these two to get the in between percentage.

.9332 - .0062 = .927 or 92.7% is what doesnt fail to satifsy the contract spefications! But to find what does fail to satisfy we have to subtract it by 100% or 1.

1 - .927 = 0.073

7.3%

Oh period       ..............................                  

As per the reflexive property two angles , lines or line segments are said to be congruent with themselves . Hence we say that QR = QR .

Answer:

Cost = $45.65 - $0.25L

after 42 losses:

45.65 - 0.25(42) = $35.15

Answer:graph B

Step-by-step explanation:

Answer:

GRAPH B

Step-by-step explanation:

Answer:

The domain of a function f(x) is the set of all values for which the function is defined, and the range of the function is the set of all values that f takes. (In grammar school, you probably called the domain the replacement set and the range the solution set.

Step-by-step explanation:

hope it helps

Answer:

B

Step-by-step explanation:

Answer:

Bus A: 10:00am Bus B:10:20

Step-by-step explanation

I think that this is correct

Answer:

18

Step-by-step explanation:

If forty percent of the class is boys, then sixty percent of the class is girls. So that means you must multiply .6 by 30 which will give you your answer of 18. .6 is a decimal form of 60%

The number of girls in the class is 60% or 18 girls

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the total number of girls in the class be = G

Now , let the total number of boys in the class be = B

The total number of students in the class = S

The value of S = 30 students

The percentage of boys in the class = 40 %

So , the equation will be

The number of boys in the class = percentage of boys in the class x total number of students in the class

Substituting the values in the equation , we get

The number of boys in the class = ( 40/100 ) x 30

The number of boys in the class = 30 x 0.4

The number of boys in the class = 12 boys

So , the number of girls in the class = total number of students in the class - number of boys in the class

Substituting the values in the equation , we get

The number of girls in the class = 30 - 12

The number of girls in the class = 18 girls

Therefore , the value of G is 18 girls

Hence , The number of girls in the class is 60% or 18 girls

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Answer:

.8

Step-by-step explanation:

you would take 12 over 30 and set that equal to x over 2. then multiply 12 times 2 which is 24 then divide 24 by 30 which is .8

Answer: I sacrificed my answer for yours here u go love

Step-by-step explanation:

Nancy should produce more large sizes of the male clothing for German men since the data is skewed left, meaning there are more data values that lie on the right side, representing taller males. For women, she can have a roughly even distribution of sizes since the data set is symmetric.

Nancy should produce more large sizes of the male clothing for German men and for women, she can have a roughly even distribution of sizes since the data set is symmetric.

Given is to find what distribution of clothing should Nancy have for German males and females.

Nancy should produce more large sizes of the male clothing for German men since the data is skewed left, meaning there are more data values that lie on the right side, representing taller males. For women, she can have a roughly even distribution of sizes since the data set is symmetric.

Therefore, Nancy should produce more large sizes of the male clothing for German men and for women, she can have a roughly even distribution of sizes since the data set is symmetric.

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