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3 years ago

The widescreen TV has an aspect ratio of 16:9 for the width and height. Determine the side lengths of the TV. a= b=

Mathematics

1 answer:

arlik [135]3 years ago

5 0

俄控股包i0j2rd,8j30e÷/愛愛情片中

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Find y so that (-2, y) is a solution to 3x + 5y=8

podryga [215]

Answer:

y = $\frac{14}{5}$

Step-by-step explanation:

Substitute x = - 2 into the equation and solve for y

3(- 2) + 5y = 8, that is

- 6 + 5y = 8 ( add 6 to both sides )

5y = 14 ( divide both sides by 5 )

y = $\frac{14}{5}$

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3 years ago

The function f(x) is the total amount spent at a store, when purchasing x items that are $5 each and the items are not taxable

vagabundo [1.1K]

Answer:

Step-by-step explanation:

The domain is all possible values of x. Here, x is the number of $5 nontaxable items. So x must be an integer, and it can't be negative. It is possible for x to be 0. So x is all whole numbers.

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3 years ago

What of the following are parts of a sphere ?

Tamiku [17]

I believe it’s just the base, radius, and maybe the total surface

7 0

3 years ago

A circle with area \blue{16\pi}16πstart color #6495ed, 16, pi, end color #6495ed has a sector with a central angle of \purple{\d

Morgarella [4.7K]

Answer:

(64/5)π

Step-by-step explanation:

Area of the circle: 16π

central angle: (8/5)π

The Area of the circle corresponds to a central angle equal to 2π (the complete circle). Then the following proportion must be satisfied:

16π / x = 2π / (8/5)π

x = [16π * (8/5)π] / 2π

x = (64/5)π

7 0

3 years ago

What is the length of BC? Round to the nearest tenth.

vredina [299]

Answer:

BC ≈ 20.5 in

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos35° = $\frac{adjacent}{hypotenuse}$ = $\frac{BC}{AB}$ = $\frac{BC}{25}$ ( multiply both sides by 25 )

25 × cos35° = BC , thus

BC ≈ 20.5 in ( to the nearest tenth )

3 0

3 years ago