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Goryan [66]
1 year ago
9

Answer the question in the picture

Mathematics
1 answer:
Schach [20]1 year ago
6 0

The area of the semicircle is A = 1187.9 cm².

<h3>What is the area of a circle?</h3>

The area of a circle with a radius of r is A = πr².

Given that, the diameter of the semicircle is 55 cm.

The radius of the semicircle is,

r = 55/2

The area of a semicircle is given by,

A = (1/2)πr²

Substitute the values,

A = (1/2)π(55/2)²

A = 1187.9

Hence, the area of the semicircle is A = 1187.9 cm².

Learn more about the area of a circle:

brainly.com/question/22964077

#SPJ1

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What two numbers add up to 10 and multiply to 21
WITCHER [35]

Answer:The answer is 3 & 7

Step-by-step explanation:3 x 7 = 21

3 + (7) = 10

Are you asking because you are trying to figure out how to factor the following quadratic equation?

x2 + 10x + 21 = 0

If so, the solution to factor the quadratic equation above is:

(X + 3 ) (X + 7)

To summarize, since 3 and 7 multiply to 21 and add up 10, you know that the following is true:

x2 + 10x + 21 = (X + 3 ) (X + 7)

3 0
3 years ago
Write an equation to represent the following statement.<br> The product of 7 and j is 91
Snowcat [4.5K]

Answer: 7j = 91

CORRECT  ME IF I'M WRONG!

<em>Hope this helps!</em>

<em />

<u>Brainliest would be great!</u>

3 0
3 years ago
Round 9.39 to the nearest whole number.
k0ka [10]

Answer:

9.00

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8 0
2 years ago
In 1911, the temperature in Rapid City,
Sliva [168]

The 3.1 °F/min rate of change of the temperature and 15 minutes change duration gives the change in temperature as 46.5 °F

<h3>How can the change in temperature be found from the rate of change?</h3>

The rate at which the temperature changed = 3.1 °F/min

The duration of the change in temperature = 15 minutes

The relationship between the change in temperature, the rate of change in temperature and the time can be presented as follows;

3.1  ^{\circ} F/min =  \frac{ \delta T }{\delta t}  =  \frac{ \Delta T }{ \Delta t}

Where;

∆T = The required change in temperature

∆t = The duration of the change = 15 minutes

Which gives;

∆T = 3.1°F/min × 15 minutes = 46.5 °F

  • The change in temperature, ∆T = 46.5 °F

Learn more about the rate of change of a variable here:

brainly.com/question/10208814

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8 0
1 year ago
8x – 3y = 1<br> –2x + 3y = 11<br> Solve a Linear System by Elimination
alexdok [17]
I think it’s x= 2 but i would check that
8 0
2 years ago
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