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k0ka [10]
3 years ago
15

Find the value of x.

Mathematics
1 answer:
rewona [7]3 years ago
3 0
If they are the same length on the line, the. They are equal to eachother. Use this and some algebra to solve the problem.

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Which expression represents a difference of squares? A. 4x2 − 16x B. t2 + 100 C. 25k − 64 D. 81 − 49y2
LuckyWell [14K]

Answer:

I believe it would be C, not 100% sure though

7 0
3 years ago
Write your answer in standard form. (6x+7) (x-8)
WITCHER [35]

Answer:

First one is d and second one is c

Step-by-step explanation:

(6x+7)(x-8)

(6x)(x) = 6x^2

(6x)(-8) = -48

(7)(x) = 7x

(7)(-8) = -56

Add all like terms together and you get choice d.

(w+3)(w-3)

(w)(w) = w^2

(w)(-3) = -3w

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5 0
3 years ago
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It’s Edgar or 40 miles
3 0
3 years ago
Derive the equation of the parabola with a focus at (2, 4) and a directrix of y = 8.
Reil [10]

In this problem, given the focus at (2,4) and directrix at y = 8. then it is implied that the parabola is facing downwards. The vertex hence is at the middle of the focus and the directrix, hence at (2, 6). The general formula of the parabola is y-k = -4a  ( x-h)^2. Substituting, y -6 = -1/8 *(x-2)^2. Answer is A. 
7 0
3 years ago
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How many inches around is the crust if the diameter of the pizza is 8 inches?
I am Lyosha [343]
Hi there!

Here, we're looking for the circumference. The formula for the circumference of a circle is pi x diameter. Using this formula, we can figure out the circumference.

WORK:
C = pi x 8
C = 8pi 
or 25.13 in

Hope this helps!! :)
6 0
3 years ago
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