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Novay_Z [31]
2 years ago
12

Look at the figure. If m∠JKM = 48, find m∠J.

Mathematics
1 answer:
vladimir2022 [97]2 years ago
3 0

Answer:

42

Step-by-step explanation:

The measure of angle K is 48, the measure of angle m is 90. From there you have 138 degrees. A triangle is 180 degrees. You subtract 138 from 180.

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Find the surface area and volume of the pyramid. ​
serious [3.7K]

Given:

The figure of a square base pyramid.

To find:

The area of volume of the pyramid.

Solution:

The area of square base is:

B=(side)^2

B=(16)^2

B=256

Area of one triangular side of the pyramid is:

A_1=\dfrac{1}{2}\times base\times height

A_1=\dfrac{1}{2}\times 16\times 13

A_1=104

Now, the total surface area of the pyramid is:

A=B+4A_1

A=256+4(104)

A=256+416

A=672

Therefore, the surface area of the pyramid is 672 square m.

The volume of the pyramid is:

V=\dfrac{1}{3}Bh

Where, B is the base area and h is the vertical height of the pyramid.

Substituting B=256,\ h=6, we get

V=\dfrac{1}{3}(256)(h)

V=(256)(2)

V=512

Therefore, the volume of the pyramid is 512 cubic meters.

Hence the correct option is d.

6 0
2 years ago
Plz help me ! axdmdd dldbs​
xeze [42]

Answer:

what do you need help with?

7 0
2 years ago
Please can someone help my assignment​
Vadim26 [7]

Answer:

Find answers below

Step-by-step explanation:

First know that any value raise to power zero is 1 and also according to the inverse law;

a⁻ⁿ = 1/aⁿ

Given the following

a) (-123)⁰ = 1 ()Note that any value raise to zero is 1

b) 43⁻⁵ = 1/43⁵

1/43⁵ = 1/147,008,443

c) 1/15⁻⁶ = 1/(1/15⁶)

1/(1/15⁶) = 1*15⁶/1

1/(1/15⁶) = 15⁶

d) -(1353348)⁰

= -1 (anything raise to zero is 1)

e) 13⁻⁴ = 1/13⁴

= 1/28,561

4 0
3 years ago
Use the substitution method to solve each system of equations. Write the answer in ordered pairs.
tatyana61 [14]

x -y = 1

5x + 3y = 45

Solve the first equation for x: x = y + 1

Substitute x in the second with y + 1

5x + 3y = 45

5(y + 1) + 3y = 45

5y + 5 + 3y = 45

8y + 5 = 45

8y = 40

y = 5

Substitute 5 for y in x = y + 1

x = y + 1

x = 5 + 1

x = 6

Answer: (6, 5)

5 0
3 years ago
What is 2 3/4 - 5/16​
Ilya [14]

Answer:

2 7/16

Step-by-step explanation:

multiply both top and bottom of 2 3/4 to make it 12/16 then subtract from there.

6 0
3 years ago
Read 2 more answers
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