3 years ago

Anna pays $120 per month for plano lessons. Estimate how much Anna pays

Mathematics

1 answer:

Ivanshal [37]3 years ago

3 0

Answer:

1440

Step-by-step explanation:

1440 because u have multiply 120x12 because there r 12 months

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A sphere and a right cylinder have the same radius and volume. The cylinder has a height of 8 feet. Find the radius.

siniylev [52]

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Answer:

6 feet

Step-by-step explanation:

The volume of a cylinder is given by ...

V = πr^2·h

For a sphere, the volume is ...

V = 4/3πr^3

You want the volumes to be the same when h=8, so we have ...

πr^2·8 = 4/3πr^3

Dividing by πr^2, we have ...

8 = 4/3r

r = 3/4·8 = 6

The radius is 6 feet.

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3 years ago

How many feet are in 2.5 miles if there are 1,760 yards in one mile (1 yd = 3 ft)

Shkiper50 [21]

Answer:

1760 yards

1 mile = 1760 yards. The symbol is "mi".

Step-by-step explanation:

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3 years ago

Let f(x) = twenty-four over the quantity of 3 x minus two. Find f(-2

bija089 [108]

$f(x)=\frac{24}{3x-2}\\\\f(-2)=?\\
Subtitude\ x=-2\\
f(-2)=\frac{24}{3*(-2)-2}=\frac{24}{-6-2}=\frac{24}{-8}=-3\\\\
Solution\ is\ f(-2)=-3.$

4 0

3 years ago

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Compute $\sqrt{25^2-7^2}$.

EastWind [94]

Answer:

Step-by-step explanation:

$\sqrt{25^2-7^2}\\\\=\sqrt{(25-7)(25+7)}\\\\=\sqrt{18(32)}\\\\=\sqrt{9*2*2^5}\\\\=\sqrt{3^2\cdot 2^6}\\\\=\sqrt{(3\cdot2^3)^2}\\\\=3\cdot2^3\\\\=3\cdot8\\\\=24$

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3 years ago

PLEASE ANSWER RIGHT AWAY

BlackZzzverrR [31]

Answer:

A- control group

Since group A is tested under normal condition, it is the control group. Control group is separated from other groups so that the independent variable being tested cannot influence the result.

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3 years ago