3 years ago

Pleasee i need help very bad

Mathematics

1 answer:

Anon25 [30]3 years ago

3 0

Angles UST and TSU are equivalent.

The answer is TSU

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What is the slope between the points (8, -2) and (-7, 10)

sdas [7]

Answer:

-4/5

Step-by-step explanation:

use point slope form, which is y2-y1/x2-x1

plug in the numbers to get 10 -(-2)/-7-8. double negatives make a positive, so -2 turns into a positive. so adding them together makes 12/-15. simplify it to get -4/5.

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3 years ago

HELP PLEASE. When finding the surface area of a composite figure, why is it often necessary to subtract sides common to each ind

tia_tia [17]

Answer:

Surface area; Greater; subtract

Step-by-step explanation:

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3 years ago

The base angle of an isosceles triangle measures 54°. What is the measure of its vertex angle?

Elena-2011 [213]

Hope this helps :) If you have a doubt just comment :)

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3 years ago

Read 2 more answers

GIVING 35 POINTS TO WHOEVER ASWERS CORRECTLY!

horrorfan [7]

I think the correct answer is D

5 0

2 years ago

Find the total area for the regular pyramid.

hram777 [196]

Answer:

Option B

Step-by-step explanation:

Given is the hexagonal pyramid.

We know the radius of the base is same as its side.

Find the base area:

A = 3√3/2a²
A = 3√3/2*6² = 54√3

Given the height and radius, find the side of the lateral triangular faces:

$\sqrt{8^2+6^2} =\sqrt{100} =10$

Each of 6 triangles have sides 10, 10 and 6 units.

Find the area using heron's formula:

s = P/2 = (10*2 + 6)/2 = 13
s - a = s - b = 13 - 10 = 3
s - c = 13 - 6 = 7
$A = \sqrt{s(s-a)(s-b)(s-c)} =\sqrt{13*3*3*7} =3\sqrt{91}$

Total surface area:

$S = 6*3\sqrt{91}+54\sqrt{3} =18\sqrt{91}+54\sqrt{3}$

Correct choice is B

3 0

2 years ago