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MatroZZZ [7]
4 years ago
7

X^2+7x-8=0 what are the solutions

Mathematics
1 answer:
e-lub [12.9K]4 years ago
3 0

Answer:

x= -8   x=1

Step-by-step explanation:

x^2+7x-8=0

Factor

What 2 numbers multiply to -8 and add to 7

8*-1 = -8

8+-1 = 7

(x+8) (x-1) =0

Using the zero product property

x+8 =0    x-1=0

x= -8   x=1

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An object moving with a speed of 5m/s has a kinetic energy of 100J what is the mass of the object
Sphinxa [80]

Answer:

k. e. = 1/2 mv^2

100 = 1/2 * m * 5^2

100 = 1/2 * m * 25

m = 100* 2/25

m = 8 kg

hope it helps you

5 0
3 years ago
Point P is the center of dilation. Triangle A B C is dilated to create triangle A prime B prime C prime. The length of P A is 2
Orlov [11]

Answer:

C. No, it is not a dilation because the points of the image are not moved away from the center of dilation proportionally.

Step-by-step explanation:

Dilation is the process in which the size i.e dimensions of a given figure is either increased or decreased by a scale factor, without changing the shape of the figure.

Given that: PA = 2, PB = 3, AA^{I} = 4, BB^{I} = 5.

So that: PA^{I} = 6, PB^{I} = 8.

Therefore, triangle A'B'C' is not an exact dilation of triangle ABC. So that the correct option is; No, it is not a dilation because the points of the image are not moved away from the center of dilation proportionally.

5 0
4 years ago
Read 2 more answers
What is the slope of a line that contains the two points (0, 3) and (4, 5)?
Anika [276]

The formula for slope is (y2 -- y1) / (x2 -- x1).

(0,3) (4,5)

5 - 4 = 1

3 - 0 = 3

So the slope is 1/3.

Hope this Helps!!


5 0
3 years ago
A charity is selling raffle tickets at $10 apiece. Ten third-place winners will be drawn, each winning $20. Five second-place wi
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5 0
3 years ago
9. FLUENCY: ONLY USE A CALCULATOR TO CHECK!<br> 1500 + (6 + 4*) 37<br> Your answer
irina1246 [14]

Answer:

1870

Step-by-step explanation:

1500 + (6 + 4) * 37

= 1500 + 10 * 37

= 1500 + 370

= 1870

8 0
3 years ago
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