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3 years ago

Can someone answer this question?

Mathematics

2 answers:

Ierofanga [76]3 years ago

6 0

Use proportional change . 7 1/3 / 1 = 8 1/4 / x

Ber [7]3 years ago

5 0

I hope this helps you

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Please help me!! Use the identities

jarptica [38.1K]

Answer:

tan 5π/24.

Step-by-step explanation:

We use the identity:

tan (A - B) = (tan A - tan B) / (1 + tan A tan B)

so the first expression simplifies to

tan ( π/3 - π/8)

= tan 5π/24.

7 0

2 years ago

Am gonna give branliest!!!

blagie [28]

The answer is B. -12°f

6 0

2 years ago

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Find the lateral area for the pyramid with the equilateral base

likoan [24]

<h3>The lateral area for the pyramid with the equilateral base is 144 square units</h3>

Solution:

The given pyramid has 3 lateral triangular side

The figure is attached below

Base of triangle = 12 unit

Find the perpendicular

By Pythagoras theorem

$hypotenuse^2 = opposite^2 + adjacent^2$

Therefore,

$opposite^2 = 10^2 - 6^2\\\\opposite^2 = 100 - 36\\\\opposite^2 = 64\\\\opposite = 8$

Find the lateral surface area of 1 triangle

$\text{ Area of 1 lateral triangle } = \frac{1}{2} \times opposite \times base$

$\text{ Area of 1 lateral triangle } = \frac{1}{2} \times 8 \times 12\\\\\text{ Area of 1 lateral triangle } = 48$

Thus, lateral surface area of 3 triangle is:

3 x 48 = 144

Thus lateral area for the pyramid with the equilateral base is 144 square units

5 0

2 years ago

The carpet Erin has chosen costs 2.50per square foot. how much will it cost her to carpet the floor?

Elan Coil [88]

I think it depends on the area of the floor. You can figure that out if you
know the dimensions of the floor, like length and width and like that.

8 0

2 years ago

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Mrs. Miller wants to estimate the widths the steps in front of her house . Best bench mark for her to use is ?

Arisa [49]

The best bench mark to use is an inch. She should use an inch because centimeters are too small and the steps might be less than a foot.

7 0

2 years ago