2 years ago

What would be the length and width of a 50" TV that has an aspect ratio of 4:3?

Mathematics

1 answer:

Reika [66]2 years ago

4 0

Check the picture below.

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Find the surface area of the composite solid.

Westkost [7]

We have:

4 triangles with the base b = 5ft and the height h = 6ft

4 rectangles with the lenght l = 5ft and the width w = 4ft

1 square with side a = 5ft.

The formula of an area of a riangle:

$A_T=\dfrac{1}{2}bh$

Substitute:

$A_T=\dfrac{1}{2}(5)(6)=\dfrac{1}{2}(30)=15\ ft^2$

The formula of an area of a rectangle:

$A_R=lw$

Substitute:

$A_R=(5)(4)=20\ ft^2$

The formula of an area of a square:

$A_S=a^2$

Substitute:

$A_S=5^2=25\ ft^2$

The Surface Area of composite solid:

$SA=4A_T+4A_R+A_S$

Substitute:

$SA=4(15)+4(20)+25=60+80+25=165\ ft^2$

<h3>Answer: The Surface Area of the composite solid is 165 ft².</h3>

3 0

3 years ago

4/15x equals 2/5<br> solve for x

irina [24]

Answer:

$1\frac{1}{2} = x$

Step-by-step explanation:

$\frac{\frac{2}{5}}{\frac{4}{15}} = \frac{2}{5} \times \frac{15}{4} = \frac{30}{20} = 1\frac{1}{2}$

I am joyous to assist you anytime.

7 0

3 years ago

The bar graph shows how each month's rainfall compares to the historical average.

mina [271]

Answer:

a. The difference in rainfall is 4.03in

b. The total amount of rainfall for the year is negative, -1.73

Step-by-step explanation:

a. Wettest month 2.36in and dryest month -1.67in

2.36

-1.67

-------

4.03

b. -0.45 + -0.88 + 0.94 + -1.67 + -0.96 + 0.83 + 2.36 + 1.39 + 0.35 + -1.35 + -0.9 + -1.39 = -1.73

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2 years ago

jann designs a new logo for kim's website. kim pays jan $45 for 5 hours of work. How much money does kim pay jan per hour?

Amanda [17]

Jann pays Kim $9 an hour

5 0

3 years ago

Read 2 more answers

Need help with a couple of geometry word problems. Giving 100 points, tysm if you help :)

dlinn [17]

Answer:

Hope it helps

Step-by-step explanation:

1: B

2: B

3: D

4: C

5: A

6 0

2 years ago