3 years ago

What can you conclude from the following true statements?

Mathematics

1 answer:

lys-0071 [83]3 years ago

3 0

There is snow on the ground outside.

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the perimeter of an equilateral triangle is 39 centimeters. What is the length of an altitude of the triangle ?

victus00 [196]

Answer: $h = 11.26cm$

Step-by-step explanation:

Equilateral triangle has equal sides, let the side be $xcm$ , then the perimeter is $3x$

Therefore:

$3x = 39$

$x = 39/3$

$x = 13cm$

To find the altitude , we will apply Pythagoras theorem , that is

$13^{2}=h^{2}+6.5^{2}$

Therefore:

$h^{2}=13^{2}-6.5^{2}$

$h^{2}=169-42.25$

$h^{2}=126.75$

take the square root of both sides

$h = 11.26cm$

8 0

3 years ago

PLEASE HELP ASAP!!!!!!!

umka2103 [35]

Answer:

dum there is part A prat B and C

Step-by-step explanation:

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3 years ago

A catering company charges $300 plus $40 per guest for a wedding. Sarah and Eric do not want to spend more than $5,000 on cateri

pychu [463]

Y=300+40g
Y=5000
5000=300+40g
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4700=40g/40
117.5=g
About 117 people without going over budget.

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3 years ago

)) Evaluate the expression for b = 7.<br> 11b - 75 =

Wewaii [24]

Answer:

The answer is 2.

Step-by-step explanation:

11(7) - 75

77-75

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3 years ago

the number of chirps made by a cricket varies directly as the temperature. If at 12 degrees a cricket chirps 30 times per minute

GenaCL600 [577]

Answer:

50 i think?

Step-by-step explanation:

30 divided by 12 is 2.5, 2.5 x 20 equals 50

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3 years ago