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Anit [1.1K]
3 years ago
7

13 2. Use the bar diagram to solve the following equation: 4d + 5 = 13 d d d d 5

Mathematics
1 answer:
lidiya [134]3 years ago
6 0
D=2 is the answer if you subtract 5 and 13 which is 8 then divide the 4d by it and you get 2
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What is the volume of the square-based pyramid?
grandymaker [24]

Answer:

Volume of square-based pyramid = 96 in³

Step-by-step explanation:

Given:

Base side of square = 6 inch

Height of pyramid = 8 inch

Find:

Volume of square-based pyramid

Computation:

Area of square base = Side x Side

Area of square base = 6 x 6

Area of square base = 36 in²

Volume of square-based pyramid = (1/3)(A)(h)

Volume of square-based pyramid = (1/3)(36)(8)

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Volume of square-based pyramid = 96 in³

6 0
2 years ago
Arielle is building the wooden framework for the roof of a house. she needs the angle created by the vertical and horizontal boa
Brums [2.3K]

Answer:

Option A is correct

it is an acute triangle. about 0.8 foot needs to be removed from the 20-foot board to create a right triangle.

Step-by-step explanation:

She want to build a right angle frame

Then to proof it is right angle, we will apply Pythagoras theorem to the sides of the rectangle,

Since the vertical height of board is 12ft

And, the horizontal length of board is 15ft.

Then the beam that support the two beams which also form the hypotenuse is give as

(beam support)²=(horizontal board)²+(vertical board)²

x²=12²+15²

x²=144+225

x²=369

x=√369

x=19.2ft

Then the beam support is 19.2ft

To get the angle of the beam support to the horizontal

Applying trigonometric

Tanθ=opposite / adjacent

Tanθ= vertical / horizontal

Tanθ=12/15

Tanθ=0.8

θ=arctan(0.8)

θ=36.7°

This shows that it is an acute triangle.

We are told that the support beam is 20ft but this is not true because the support beam is calculated to be 19.2ft,

So, 0.8ft must be removed from the 20ft support beam to create the right angle.

Then, the best option is a

we need to cut the support beam by approx 0.8 feet to make right angle between vertical board and horizontal board.

5 0
3 years ago
9( −5ℎ) in standard form
harkovskaia [24]

Answer:

Step-by-Step-explaination

9(−5ℎ) = - 45h

6 0
3 years ago
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Pls I need the answer to this:
Vitek1552 [10]

Answer:what are the solution to the equation 0=X^2-X-6? Select two options

Step-by-step explanation:A and D

7 0
3 years ago
Soon you will determine the right triangle connection the pythagorean theorem
Softa [21]
I don't know I just need the points Lol sorry
6 0
2 years ago
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