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White raven [17]
2 years ago
13

Which of the following equations illustrates exponential growth?

Mathematics
2 answers:
Varvara68 [4.7K]2 years ago
8 0
X+y=10 is not answering
Reika [66]2 years ago
8 0
B) Y=2^x

It’s the only one using an exponent

Y=2^1 = 2
Y= 2^2 = 4
Y = 2^3 = 8
Y = 2^4 = 16 ...

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PLEASE HELP ME ASAP!!!!
kirill115 [55]

Answer:

y=  5x + 3

Step-by-step explanation:

This is because you solve for slope, which is 5, then plug that into point slope form to get:

y - 8 = 5(x - 1)

y - 8 = 5x - 5

y = 5x  + 3.

6 0
3 years ago
Read 2 more answers
a square swimming pool has a cement sidewalk around it. The sidewalk is the same width all the way around. The outside perimeter
VLD [36.1K]

Answer:

175 square feet

Step-by-step explanation:

the area of the whole thing is 400 ft. (20 x 20=400)

i got the 20 from the perimeter b/c 20+20+20+20=80

then subtract the area of the pool from 400 to get 175.

6 0
2 years ago
The cost of a fridge has increased by 15% to £828 <br> Work out the original price
Afina-wow [57]
Muliply .15 to 828 and get your answer the add it to 828

4 0
3 years ago
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If x=-5 what is the value of x^2-1/x+1? A. 6 b. -4 c. 4 d. 5 4/5 e. 19 <br> need answers asap
xxTIMURxx [149]

Answer:

The answer is -6 but its not in the option

Step-by-step explanation:

\frac{ {x}^{2} - 1 }{ x  + 1}

Let x = -5

[(-5)²-1]/(-5+1)

= (25-1)/(-4)

= 24/-4

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4 0
2 years ago
What scale factor was used in going from the grey triangle to the yellow triangle?
Lena [83]

Answer:

2

Step-by-step explanation:

First, we need to find out the length of the third side of the triangle. (The right side of the Y-axis) We use the pythagorean theorem to find it. 4²+2² = 20 find the square root of 20 √20 = ~4.5 so with this in mind, lets find the length of the whole triangle. 8²+4²=80 then √80 = ~9 with this, we can say that since the length of one of the legs has increased by 2, and so has the length of the base, and also the length of the hypotenuse, the scale factor must be 2.

8 0
3 years ago
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