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Ksju [112]
2 years ago
15

Someone plz help me plz

Mathematics
1 answer:
sukhopar [10]2 years ago
4 0

Answer:

38.5

Step-by-step explanation:

First do 77/2 then you get 38.5, if anything is wrong please tell me!!

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Use the information provided to write the equation of each circle​
Nadusha1986 [10]

Answer:

1.

centre(h,k)=(-13,9)

radius (r)=6

we have

equation of the circle is

(x-h)²+(y-k)²=r²

(x+13)²+(y-9)²=6²

x²+26x+169+y²-18y+81=36

x²+y²+26x-18y+169+81-36=0

x²+y²+26x-18y +214=0

is a required equation of the circle.

2.

centre(h,k)=(1,-1)

radius (r)=11

we have

equation of the circle is

(x-h)²+(y-k)²=r²

(x-1)²+(y+1)²=11²

x²-2x+1+y²+2y+1=121

x²+y²-2x+2y=121-2

x²+y²-2x+2y=119

is a required equation of the circle.

4 0
2 years ago
Write the ratio as a fraction in simplest form, with the whole numbers In the numerator and denominator. 1.4L : 4.9 L
lidiya [134]
1.4L : 4.9L
= \frac{1.4}{0.7} L:\frac{4.9}{0.7}L
=2L : 7L
8 0
2 years ago
Consider the first three terms of the arithmetic sequence: 7, 15, 23,... Determine d, the common difference.​
ValentinkaMS [17]

Answer:

I think 47 and 55

Explanation:

I think that each number is the previous one plus 8;

7+8=15

15+8=23

23+8=31

31+8=39

So, next will be:

39+8=47

47+8=55

Is this what ur looking for?? hope this help:)

3 0
2 years ago
What is the value of the expression 3-4 x 3-5<br> x
DerKrebs [107]
I believe if that says three minus four times three minus five or three plus negative four times three plus negative five (same thing) then the answers should be positive two (2.)
4 0
2 years ago
2b-5/b-2 = 3/b+2<br><br><br><br> SOLVE
Deffense [45]
Cross multiply:-

3(b - 2) = (2b - 5)(b + 2)

3b - 6 = 2b^2 + 4b - 5b - 10

2b^2 - 4b - 4 = 0

b^2 - 2b - 2 = 0

b = 2.73, -0.73  Answer
7 0
2 years ago
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