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3 years ago

Three times a number, less 4 is 2

Mathematics

1 answer:

tekilochka [14]3 years ago

3 0

Answer:

Step-by-step explanation:

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How do you get statistics from percentages

Nikitich [7]

Answer:

Divide the target demographic by the entire population, and then multiply the result by 100 to convert it to a percentage.

Step-by-step explanation:

Gather Your Statistics.

Divide by Entire Population.

Convert to Percentage

6 0

3 years ago

I need help please!!

Sergio039 [100]

Answer:

16 cm2

Step-by-step explanation:

By equa tion of area of triangle: S = 1/2 * height * base

Triangle B: 32 = 1/2 * 8 * x --> x = 8 (cm)

The base of triangle A is half of the base of triangle B so it is 4 cm.

The area of triangle A = 1/2 * 8 * 4 = 16 (cm2)

5 0

2 years ago

A figure is made up of a triangle and a rectangle. The triangle has a height of 8.5 inches and a base of 10 inches. The rectangl

Brilliant_brown [7]

$\sf are a \ of \ triangle : \frac{1}{2}*base *height$

$\sf are a \ of \ rectangle : Length * Width$

total area :

$\sf are a \ of \ rectangle + area \ of \ triangle$

$\rightarrow \sf 9 * 10 + \frac{1}{2} *8.5*10$

$\rightarrow \sf 132.5 \ in^2$

5 0

2 years ago

What is 9/7 times -9/5?

pochemuha

Answer:

- 2 11/35

Step-by-step explanation:

Step 1:

9/7 × - 9/5 Equation

Step 2:

- 81/35 Multiply

Answer:

- 2 11/35 Convert

Hope This Helps :)

8 0

2 years ago

A spherical balloon is inflated so that its volume is increasing at the rate of 3 ft3/min. How fast is the diameter of the ballo

beks73 [17]

When an spherical balloon volume is increasing at the rate of $3ft^3/min$ then the diameter of the balloon is increasing $\frac{3}{2\pi }ft /min$

How can we find the rate of change of balloon's diameter ?

The volume of a spherical balloon is $v=\frac{4}{3} \pi r^3$

In form of diameter we can write as

$v=\frac{4}{3} \pi (\frac{D}{2} )^3\\=\frac{1}{6} \pi D^3$

Now we will differentiate both sides wrt to $t$ we get

$\frac{dv}{dt} =\frac{1}{6} \pi 3D^2 \frac{dD}{dt} \\\frac{dD}{dt} =\frac{2}{\pi D^2} \frac{dv}{dt} \\\\when r=1\\D=2ft$

Given in the question $\frac{dv}{dt} =3ft^3/min$

thus when we substitute the values we get

$\frac{dD}{dt} =\frac{2}{\pi *2^2} (3)\\\frac{dD}{dt}=\frac{3}{2\pi } ft/min$

Learn more about the differentiation here:

brainly.com/question/28046488

#SPJ4

3 0

2 years ago