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2 years ago

D) What is the area of a circle with a radius of 1/2 inch?

Mathematics

1 answer:

erik [133]2 years ago

6 0

Answer:

0.79

Step-by-step explanation:

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Solve the system of linear equations by elimination.<br><br> −2x−5y=9<br> 3x+11y=4

goldenfox [79]

Answer:

x=-17, y=5. (-17, 5).

Step-by-step explanation:

-2x-5y=9

3x+11y=4

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

3(-2x-5y)=3(9)

2(3x+11y)=2(4)

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

-6x-15y=27

6x+22y=8

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

7y=35

y=35/7

y=5

3x+11(5)=4

3x+55=4

3x=4-55

3x=-51

x=-51/3

x=-17

3 0

2 years ago

I need help finding the area of this shape can you please help

BabaBlast [244]

Answer: 139.27

Step-by-step explanation:

So let find the area of the black swuare the length is 10 and the widith is 10, using bxh the area is 100. Now let find the aea of the semi-circle. The area of a fill circle is pi radius squared so a semi circle area will be 1/2( pi radius squared). The radius is 5 so we can calculate 1/2 of 25 pi equal = 39.27. Now let add the areas: 100+39.27=139.27.

8 0

2 years ago

What are the solutions of this quadratic equation ? x ^ 2 = 16x - 65 Substitute the values of a and b to complete the solutions

Karo-lina-s [1.5K]

Answer:

x = 8 + $\sqrt{58}$ or x = 8 − $\sqrt{58}$

Step-by-step explanation:

Hope This Helps

Please Mark Brainliest if correct

I do Not Have Time To Explain I'm SO Sorry

5 0

3 years ago

Find the value of w to make the statement true.<br>-w = -10 + 4w

Alinara [238K]

Move variable to the left. -w= -10+ 4W
-w-4W =-10
Collect like terms
-5w=-10 divide both sides by 5

8 0

3 years ago

Process control is nothing more or less than monitoring quality as the work is being performed. Perhaps the most widely adopted

ella [17]

Answer:

a. Grand Mean = 2.799

b. Standard Deviation = 0.01387

c. Standard Error = 0.0016

d. The range with a Z score of 3 = (2.75739, 2.84061)

Step-by-step explanation:

a. Grand mean :

Given that

Sum of 80 values = 223.91

Total observation = 80

Grand mean = 223.91/80 = 2.799

b. With the excel command "STDEV[range of cells]", we get the standard deviation as = 0.01387

c. Standard error = Standard deviation / root of n

$= 0.01387/\sqrt{80}\\ = 0.0016$

d. The range with a Z score of 3 :

lower limit = mean - (3 * SD) = 2.799 - (0.04161) = 2.75739

upper limit = mean + (3 * SD) = 2.799 + (0.04161) = 2.84061

8 0

3 years ago

D) What is the area of a circle with a radius of 1/2 inch?​

D) What is the area of a circle with a radius of 1/2 inch?