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3 years ago

Hi I need help with these questions rn, ASAP!

Mathematics

2 answers:

UkoKoshka [18]3 years ago

6 0

i believe the answer is concave

MariettaO [177]3 years ago

5 0

9) Answer:

Concave

Step-by-step explanation:

The figure has lines that will cross all the way to the other end if it continues, which means that it's self-intersecting.

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Fill in the blank and dropdown menus to form a true statement below.

Pavlova-9 [17]

Answer:

It's polyhedron, not polygon

Because above figure has merely 10 sides.

so the polyhedron above has 10 sides, each of them has 20°.

so total degree in polyhedron is > 180(n-2)

>180(10-2)

> 180×8

> 1440

Step-by-step explanation:

Hope it helps you

5 0

3 years ago

Daniel wanted to know his approximate score on the final exam for his mathematics class. His professor hinted that his score was

Marizza181 [45]

Answer:

The raw score for his exam grade is 99.69.

Step-by-step explanation:

Given : The professor announced that the mean for the class final exam was 88 with a standard deviation of 7. Given Daniel's z score of 1.67.

To find : What is the raw score for his exam grade?

Solution :

The formula use to find the z-score is

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

Where, z=1.67 is the z-score

$\mu=88$ is the means

$\sigma=7$ is the standard deviation

x is the raw score for his exam grade

Substitute the values,

$1.67=\dfrac{x-88}{7}$

$1.67\times 7=x-88$

$11.69=x-88$

$x=88+11.69$

$x=99.69$

Therefore, the raw score for his exam grade is 99.69.

7 0

3 years ago

Help ASAP please

Nataly [62]

Answer:

a) volume = 321.55 in³

Step-by-step explanation:

volume = 4/3πr³ = 4/3(3.14)4.25³) = 321.55 in³

7 0

3 years ago

Nico Joven presently earns $348.40 per week. He claims

Anika [276]

Answer:

tbh i be wasting m time and ur tiem no kap

Step-by-step explanation:

6 0

3 years ago

3(2+7) - 9 x 7 = 3+8 x 2 x 2 - 4 = 16 ÷ 2 x 5 x 3 ÷ 6 = Please answer! ✨✨

Thepotemich [5.8K]

Answer:

At first, we have 3 expressions that are equal.

$3(2+7) - 9 \cdot 7= 3+8 \cdot 2 \cdot 2 - 4$

$6+21 - 63= 3+32 - 4$

$-36=31$

$-36\neq 31$

This is not true.

3 0

2 years ago