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2 years ago

11

What is the equation of a circle with center (8, 4) and radius 7?

1 answer:

guajiro [1.7K]2 years ago

5 0

(x-8)^2 + (y-4)^2 = 49

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8x plus 8y equals 8. 8x plus 2y equals 28. Find x and y

alukav5142 [94]

Answer:

x,y = 13/3, -10/3

Step-by-step explanation:

8x+8y=8

8x+2y=28 Subtract eq1 by eq 2

6y=-20

y=-20/6 y = -10/3

8x - 80/3=8

8x=34 2/3

x=4 1/3

x=13/3

Hope this helps plz hit the crown :D

6 0

2 years ago

Read 2 more answers

3. A woman deposits Php 23,200 into her account. How much would

nikklg [1K]

Answer:

(assuming simple interest)

I'll setup the problem and you can do the computation

Step-by-step explanation:

The formula for simple interest:

I = P*r*t

P = deposits

r = interest rate per period (a year)

t = number of periods

P = Php 23,200

r = 0.06

t = 1

If you have questions, send me a comment

3 0

2 years ago

Y=x<br> y=-6x–14<br><br> (substitution method)

olga_2 [115]

Answer:

The solution is the point (-2,-2)

Step-by-step explanation:

we have

$y=x$ ----> equation A

$y=-6x-14$ ----> equation B

Solve the system by substitution

substitute equation A in equation B

$x=-6x-14$

Solve for x

$6x+x=-14\\7x=-14\\x=-2$

Find the value of y

substitute the value of x in the equation A

$y=x$

so

$y=-2$

therefore

The solution is the point (-2,-2)

3 0

2 years ago

Which expressions is equivalent to <br><img src="https://tex.z-dn.net/?f=7%20%7B%7D%5E%7B%20-%204%7D%20%20%5Ctimes%207%20%7B%7D%

beks73 [17]

Answer:

7⁻⁴×7³ = $\frac{7^{3} }{7^{4} } = \frac{1}{7}$

:)

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2 years ago

If f(x)=3x-1 and g(x)=x+2 find (f+g)(x)

galben [10]

$(f+g)(x)=3x-1+x+2=4x+1$

5 0

3 years ago