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3 years ago

The area of a right triangle with one leg measuring 5ft and hypotenuse measuring 13ft is

1 answer:

6 0

Calculating the other leg:
other leg^2 = 13^2 - 5^2
other leg^2 = 169 -25
other leg^2 = 144
other leg = 12

Area = .5 * 12 *5
Area = 30 sq feet
answer is A

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Answer:

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Step-by-step explanation:

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2 years ago

HELP ME SOLVE THIS ASAP

vampirchik [111]

Answer:

∠B = 60°

a = 4.0 units

b = 6.9 units

Step-by-step explanation:

The triangle is right angled. The sum of all angles of a triangle is equal to 180 degrees.

The 3 angles are 90, 30 , ∠B .

$90+30+B = 180$

Thus, B = 180 - 120 = 60 degrees

by trigonometry,

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3 years ago

13. Describe the system by substitution: y=x-7 2x - y = 3

torisob [31]

Answer:

$x = y + 7 \\ \\ x = \frac{3 + y}{2} \: or \: y = 2x - 3$

Step-by-step explanation:

$1. \: 2x = 3 + y \\ 2. \: x = \frac{3 + y}{2} \: or \: y = 2x - 3 \\ \\ 1. \: y + 7 = x \\ 2. \: x = y + 7$

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2 years ago

In ΔIJK, the measure of ∠K=90°, KJ = 65, IK = 72, and JI = 97. What is the value of the cosine of ∠J to the nearest hundredth?

kow [346]

Answer:

$\cos(J) = 0.67$

Step-by-step explanation:

Given

$\angle K = 90^o$

$KJ = 65$

$IK = 72$

$JI = 97$

Required

$\cos(J)$

The question is illustrated with the attached image.

From the image, we have:

$\cos(J) = \frac{KJ}{JI}$

This gives:

$\cos(J) = \frac{65}{97}$

$\cos(J) = 0.67010309278$

$\cos(J) = 0.67$ --- approximated

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3 years ago

This figure is made up of two rectangular prisms. What is the volume of the figure?

kow [346]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers