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3 years ago

11

A distribution of values is normal with a mean of 99.5 and a standard deviation of 83.2. find p26, which is the score separating

the bottom 26% from the top 74%. p26 =

1 answer:

Lynna [10]3 years ago

5 0

A suitable calculator shows the score of 46.0 separates the bottom 26% from the top 74%.

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Please help me and explain it please questions 28

klasskru [66]

Answer:

$1.35

Step-by-step explanation:

x: quarter=$0.25

y: dime=$0.10

z: nickel=$0.05

so total amount of changes

= (0.25*x)+(0.10*y)+(0.05*z)

x=3, y=5, z=2

substituting into the eqn

total = (0.25*3)+(0.10*5)+(0.05*2)

= 0.75 + 0.5 + 0.1

= $1.35

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3 years ago

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Not sure if my answers correct, Please help quick math question asap! ty

Varvara68 [4.7K]

To find the inverse we swap y and x and solve for y:

x = 9y + 15

x - 15 = 9y

y = (x-15)/9

Last choice

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3 years ago

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An art exhibit at a local museum features several similarly shaped metal cubes welded together to make a sculpture. The smallest

borishaifa [10]

Answer: Length of other edges will be 7.5 inches, 8 inches, 9 inches, 10.5 inches, 12 inches.

Explanation:

Length of smallest cube = 6 inches

Ratio of similarity to the smallest cube is given as follows:

1) 1.25

So, length of other edge will be

$1.25\times 6=7.5\ inches$

2) 4:3

So, the length of other edge will be

$\frac{4}{3}\times 6=8\ inches$

3) 1.5

So, length of other edge will be

$1.5\times 6=9\ inches$

4) 7:4

So, length of other edge will be

$\frac{7}{4}\times 6=10.5\ inches$

5) 2

So, length of other edge will be

$2\times 6=12\ inches$

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3 years ago

how is building a triangle with different side lengths given different than building a quadrilateral with given side lengths?

Mariana [72]

Answer:

there can only be one possibility for a triangle when given the lengths of all the sides but for a quadrilateral the measure of the angles could differ depending on the person building the,. this is because triangles are more stable than quadrilaterals meaning that their side lengths follow a lot more rules than quadrilaterals do, for example the length of the side lengths can indicate whether or not that triangle is an acute, obtuse, or right triangle, and this is also evident by considering that you can use the SSS theorem to indicate two triangles are congruent, but for quadrilaterals you cant do that

Step-by-step explanation:

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3 years ago

Simplify 7(B + 3) + 2B.

motikmotik

Answer:

Step-by-step explanation:

7(B + 3) + 2B

7B + 21 + 2B

7B + 2B + 21

9B + 21

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3 years ago

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