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gizmo_the_mogwai [7]
3 years ago
5

A circular mirror is surrounded by a square metal frame. The radius of the mirror is 7x.

Mathematics
1 answer:
mixer [17]3 years ago
4 0

Answer: The area of the frame is 287.14x² square units

Step-by-step explanation:

The formula for determining the area of a circle is expressed as

Area = πr²

Where

r represents the radius of the circle.

π is a constant whose value is 3.14

From the given information,

radius = 7x

Therefore, area of the circular mirror is

3.14 × (7x)² = 153.86x² square units

The formula for determining the area of a square is expressed as

Area = L²

From the information given,

L = 21x

Area of the total square metal frame is

(21x)² = 441x²

Therefore, area of the metal frame is total area of the square - area of the mirror. It becomes

441x² - 153.86x² = 287.14x² square units

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5 to the power of 5 divided by 5 to the power of 3
Lemur [1.5K]

Answer:

25

Step-by-step explanation:

5 to the power of 5 is 3125.

because you do 5x5x5x5

then you do 5x5x5 which is 125

3125/125 = 25

6 0
3 years ago
Since most stores will calculate the total price of your purchase why is it important to be able to calculate discounts
kkurt [141]

Answer:


Step-by-step explanation:

it is important because if you don't then you will be charged more than what you are supposed to pay

8 0
4 years ago
Find the x and y intercepts for the following equation. 2x– 7y=-14
Kisachek [45]

Answer:

C: Xint = 2, Yint. = -7

Step-by-step explanation:

Given the equation, 2x - 7y = -14:

The y-intercept is the point on the graph where it crosses the y-axis, and has coordinates (0, b). It is also the value of y when x = 0.  To solve for the y-intercept, set x = 0:

2x - 7y = -14

2(0) - 7y = -14

0 - 7y = -14

-7y = -14

Divide both sides by -7 to solve for y:

-7y/-7 = -14/-7

y = 2

Therefore, the y-intercept = 2.

Next, the x-intercept is the point on the graph where it crosses the x-axis, and has coordinates, (a, 0). To find the x-intercept, set y = 0 and substitute into the given equation:

2x - 7y = -14

2x - 7(0) = -14

2x - 0 = -14

2x = -14

Divide both sides by 2 to solve for x:

2x/2 = -14/2

x = -7

x-intercept = -7.

Therefore, the correct answer is C: Xint = 2, Yint. = -7

Please mark my answers as the Brainliest if you find this helpful :)

7 0
3 years ago
The center of a circle is at (-2, 3) and point (4,6) is on its circumference.
Lostsunrise [7]

Answer: i don’t know

Step-by-step explanation:

yes

8 0
3 years ago
Identify the slope and y-intercept of y=-5x
Alika [10]
The slope is 5.
And the y-intercept is 0.

Hope I helped! <3
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3 years ago
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