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Stolb23 [73]
3 years ago
11

Solve by graphing. x2 2x - 8 = 0 a. –2, 4 b. 2, –4 c. 2, –4 d. –2, 4

Mathematics
2 answers:
Luba_88 [7]3 years ago
4 0
Well, to solve, garph the equation y=x^2+2x-8 and y=0
see where they intersect

anyway the easier way is to factor but anyway
0=(x-4)(x+2)


anyway

solution is x=4 and -2

A and D are answers (they are same)
Hatshy [7]3 years ago
4 0

Answer:

Option B and C are same, which are the correct answers.

Step-by-step explanation:

The given graph shows the plot for x²+2x-8=0

Here the graph crosses the x axis at points -4 and 2.

So the roots of the equations are -4 and 2

Option B and C are same, which are the correct answers.

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UMMMMMM ANYWAYSSSSSSSSSSSSSSSSSS
SashulF [63]

Answer:

anywaysssssssssssssssssss!!!!!!!!!!!!

Step-by-step explanation:

3 0
2 years ago
A town's population has been growing linearly. In 2003, the population was 59.000 and the population has been growing by 1,700 p
Rudiy27

Answer:

In 2003, the population was 59000 and the population has been growing by 1,700 people each year.

A.

The equation will be:

59000+1700x = (population 'x' years after 2003)

For x, you plug in the amount of years after 2003.

Like if it is the year 2003, the population is 59000+1700(0)

= 59000

when it is year 2005, the population is 59000+1700(2)

= 62400

B.

The town's population in 2007 will be :

(2007-2003=4)

59000+1700(4)

Population = 65800

C.

59000+1700x=77700

=> 1700x=18700

x = 11

Means 2003+11=2014

Hence, by year 2014 the population will be 77700.

5 0
3 years ago
Find the midpoint of the line segment with the given endpoints. R(-12, 8), S(6, 12)
umka21 [38]

Answer:

The answer is one.

Step-by-step explanation:

4 0
3 years ago
If 22% of a number is 154, then the
yulyashka [42]

Answer:

22% = 154

100%= ?

=100×154/22

= 700

Step-by-step explanation:

5 0
2 years ago
Solve for x. Show the equation you used and your work.
IgorC [24]
Here, You need to apply "Proportionality Theorem"
According to this theorem, the ratio of components of a leg would be equal to the ratio of corresponding components of another leg.

In mathematical form, 
TV/VS = TW/WU

Substitute their values, 
14/6 = 21/(x+4)
14(x+4) = 21*6
14x+56 = 126
14x = 126-56
x = 70/14
x = 5

In short, Your Answer would be 5

Hope this helps!
4 0
3 years ago
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