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Free_Kalibri [48]
3 years ago
15

A tv has a height: width in ratio of 9:16. In a scale drawing the height is 4.5cm. What would the width be

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
3 0
4.5 is half of nine, so simply divide 16 by 2 and your answer would be 8.

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The radius of the cone is 5 in and y = 13 in. What is the volume of the cone in terms of π?
olga nikolaevna [1]

Answer:

The volume of the cone is;

100 π inches^3

Step-by-step explanation:

To calculate the volume, we need the height

We can get the height from the slant height and the radius

Mathematically, we use Pythagoras’ theorem for this as the slant height, the radius and the height forms a right-angled triangle

The right-angled triangle has the slant height as its hypotenuse

By the theorem, the square of the hypotenuse equals the sum of the squares of the two other sides

Let the height be h

Thus;

12^2 = 5^2 + h^2

169= 25 + h^2

h^2 = 169-25

h^2 = 144

h = √1144 inches = 12 inches

The volume of the cone is;

1/3 * π * r^2 * h

= 1/3 * π * 5^2 * 12

= 100 π inches^3

4 0
3 years ago
The Johnson family's budget was $3,200 in September. If they spend 8% of their monthly budget on entertainment. How much money d
Alekssandra [29.7K]

Answer:

256

Step-by-step explanation:

3200 x 0.08 = 256

7 0
3 years ago
Solve the equation below 5 - 1/2x = 5/8x + 2
Dafna1 [17]
X = 8/3 

I hope this helped!
4 0
4 years ago
Read 2 more answers
What is the circumference of a round pizza with an area of 36 square inches?
larisa [96]
Knowing that your area is: A= \pi  r^{2}=36  in^{2} you can find the radius as:
r= \sqrt{ \frac{36}{ \pi } } =3.4 in;
With this you can evaluate the circumference as:
C=2 \pi r=2*3.14*3.4=21.3 in
8 0
3 years ago
Below are the steps to solve an equation: Step 1: |x − 5| + 2 = 5 Step 2: |x − 5| = 5 − 2 Step 3: |x − 5| = 3 Which of the follo
mamaluj [8]
The next correct step would be to open the absolute value signs. To do so, the equation would need to be put equal to two values wich both need to be solved to find the correct answers.

Equation 1: x-5=3
Equation 2: x-5=-3

The answers would be x=8 and x=2.
7 0
4 years ago
Read 2 more answers
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