Pls help me show work too:(

Mathematics

1 answer:

fredd [130]3 years ago

4 0

X=2.5 the triangles are 2x the scale of the other one so if you divide the numbers on the triangle by 2 then you will get the answer for x

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The drawing below is of a regular pentagon. The measure for each interior angle in a regular pentagon is 108°. Angle A is supple

myrzilka [38]

Answer:

72°

Step-by-step explanation:

<u>The interior and exterior angles are supplementary:</u>

A + 108° = 180°
A = 180° - 108°
A = 72°

6 0

2 years ago

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Doss [256]

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3 years ago

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One number is 5 more than the other. Their sum is 33. Find the numbers.

dimaraw [331]

Answer:

19,14

Step-by-step explanation:

x=5+y

x+ y= 33

we will solve using substitution

(5+y) +y= 33

5+y+y=33

5+2y=33

subtract 5 from both sides

2y=28

y=14

We got y now we will find what x is

for this, we will substitute y's value (14) into the first equation

x=5+(14)

x=19

we got x too

3 0

3 years ago

For a normal distribution with μ=500 and σ=100, what is the minimum score necessary to be in the top 60% of the distribution?

STatiana [176]

Answer:

475.

Step-by-step explanation:

We have been given that for a normal distribution with μ=500 and σ=100. We are asked to find the minimum score that is necessary to be in the top 60% of the distribution.

We will use z-score formula and normal distribution table to solve our given problem.

$z=\frac{x-\mu}{\sigma}$