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3 years ago

What is the area of the following circle R=7

Mathematics

2 answers:

Roman55 [17]3 years ago

6 0

Answer:

Area of the circle = $153.86\,units^2$

Step-by-step explanation:

Area of the Circle= $\pi \times r^2$

For, $r=7 \,units$

As,

$\pi =\dfrac{22}{7} =3.14$

Area is:

$=3.14\times 7 \times 7\\\\=3.14\times 49\\\\=153.86\,units^2$

The area of the circle is : $153.86\,units^2$

In-s [12.5K]3 years ago

5 0

Answer:

153.86

Step-by-step explanation:

7^2 x 3.14

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The system of equations is graphed on the coordinate plane.

ehidna [41]

Answer: The solution is (3, -2)

This means that x = 3 and y = -2 pair up together.

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Explanation:

The solution is where the two lines cross. Note if we started at the origin (0,0) and moved to the right 3 units, and then down 2 units, we would arrive at the location (3, -2).

-----------------

As a way to check, we can plug x = 3 into each equation. We should get y = -2 as a result for each equation

y = (-5/3)x + 3

y = (-5/3)*3 + 3

y = -5+3

y = -2

The first equation is confirmed. Let's check the second equation

y = (1/3)x - 3

y = (1/3)*3 - 3

y = 1 - 3

y = -2

Both equations have the y value equal -2 when x = 3. Therefore, the overall solution is confirmed.

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2 years ago

The sales tax on the model rocket shown is $1.92. What is the percent of sales tax? A drawing of a model rocket with a tag label

astraxan [27]

Answer:

The sales tax is 8%

Explanation:

We are given that:

The price of the rocket is $24 and the sales tax is $1.92

To get the percentage of the sales tax, all we have to do is divide the sales tax by the price of the rocket and then multiply the quotient by 100 (to convert the ratio to percentage)

This is done as follows:

% of sales tax = $\frac{tax}{price}*100$