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3 years ago

If there are 12 inches in 1 foot how many inches are in 7 feet

Mathematics

1 answer:

oksano4ka [1.4K]3 years ago

3 0

Answer:

84 inches are in 7 feet

Step-by-step explanation:

If you already know there are 12 inches in one feet, to determine the amount in 7 feet you multiply 12 * 7 = 84

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The size of a TV is measured by its diagonal. You want to buy a TV that has a 32

ANEK [815]

The width of the TV is 27.9 inches

Step-by-step explanation:

Given,

Diagonal of TV = 32 inch

Height of TV = 15.7 inch

The diagonal makes the TV into a right triangle,

Therefore,

Diagonal = hypotenuse = c = 32 inch

Height = perpendicular = a = 15.7 inch

Width = base = b

Using pythagoras theorem

$a^2+b^2=c^2\\(15.7)^2+b^2=(32)^2\\246.49+b^2=1024\\b^2=1024-246.49\\b^2=777.51$

Taking square root on both sides

$\sqrt{b^2}=\sqrt{777.51}\\b=27.88$

Rounding off to nearest tenth

b = 27.9 inches

The width of the TV is 27.9 inches

Keywords: Pythagoras theorem, square root

Learn more about square root at:

#LearnwithBrainly

7 0

3 years ago

A cotton candy vendor has 9 cones of blue cotton candy to sell. If the blue cotton candy is 25% of the total number of cones, ho

pychu [463]

9 = 25%
25% * 4 = 100%
9 * 4 = 36
There are 36 cotton candy cones in total.

6 0

3 years ago

Read 2 more answers

Can u give me the answer<br>

Romashka-Z-Leto [24]

Answer:

rotation

Step-by-step explanation:

all are being roatated. They arent a reflection because the F is changed thus must be rotation.

6 0

3 years ago

I dont understand this but maybe some one will and they will help me. The quotient of a number and -7 decreased by 2 is ten find

givi [52]

It might be nineteen because nineteen minus seven is twelve. twelve minus two is ten.

8 0

3 years ago

1 point

swat32

Answer:

$\log_{10}(147) = 2.1673$

Step-by-step explanation:

Given

$\log_{10} 3 = 0.4771$

$\log_{10} 5 = 0.6990$

$\log_{10} 7= 0.8451$

$\log_{10} 11 = 1.0414$

Required

Evaluate $\log_{10}(147)$

Expand

$\log_{10}(147) = \log_{10}(49 * 3)$

Further expand

$\log_{10}(147) = \log_{10}(7 * 7 * 3)$

Apply product rule of logarithm

$\log_{10}(147) = \log_{10}(7) + \log_{10}(7) + \log_{10}(3)$

Substitute values for log(7) and log(3)

$\log_{10}(147) = 0.8451 + 0.8451 + 0.4771$

$\log_{10}(147) = 2.1673$

3 0

2 years ago