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iVinArrow [24]
3 years ago
10

Solve for a. √a−b+c=3 a=9+b−c a=3+√b−√c a=3+b−c a=9+√b−√c

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
5 0

Answer:

\sqrt{a} = 3 + b - c

Step-by-step explanation:

All you gotta do is subtract  - b + c from both sides then simplify.

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Step-by-step explanation:

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Which of the following best describes the equation below?
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The answer is D. Linear equation
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Solve the equation 6x + 3y = 15 for y. What does y equal if x = 2? If x = 5
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Y=-2x+5;y=1(x=2);y=-5(x=5)
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5x+4y=16 -2x-4y=-4 <br>Show your step by step process.<br>Solve the system of linear equations.​
slava [35]

Answer:

x=1 and y= 5\frac{1}{4}

Step-by-step explanation:

To solve this, lets take the first equation and find the x value.

Because it is ordered in standard form, we need to convert to slope-intercept form, and isolate the y.

5x+4y=16

-5x       -5x

4y=-5x+16

÷4   ÷4  ÷4

y=\frac{-5}{4}+4

or

y=-1\frac{1}{4}+4

or

y= 5\frac{1}{4}

Now that we have the y value, we can use this to find the x value by inserting it into either equation, since they both have y values in them. Going with the first one again, lets try it:

5x+4(\frac{-5}{4}+4)=16

5x-5+16=16

5x+11=16

    -11 -11

5x=5

÷5 ÷5

x=1 and y= 5\frac{1}{4}

7 0
3 years ago
Find the length of the arc<br> A.8 pie ft<br> B.32 pie ft<br> C.64 pie ft<br> D. 361 pie/ 12 ft
ExtremeBDS [4]
<h3>Answer: Choice A. 8pi  feet</h3>

======================================================

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The perimeter around the circle is known as the circumference

The full circumference of a circle with radius r is

C = 2*pi*r

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C = 2*pi*r

C = 2*pi*16

C = 2*16*pi

C = 32pi

is the full distance around the circle. But we only want 90/360 = 1/4 of that total distance. So take 1/4 of 32pi to get

(1/4)*32pi = (1/4*32)pi = 8pi

The arc length is exactly 8pi feet long

Approximately this is about 25.13274 feet

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3 years ago
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