1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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.

You might be interested in
Adding unlike fractions<br><br> 1/15+38/100
Daniel [21]

Answer:

134/300 or 67/150

Step-by-step explanation:

the LCM of 15 and 100 is 300. 15 *20 is 300 so we multiply both the numerator and denominator of 1/15 by 20 to get 20/300, with 38/100 we multiply by 3 to get 114/300. Now we add 20/300 and 114/300 to get 134/300 which has a common factor of 2 so we can simply it to 67/150

4 0
3 years ago
I don’t understand! help!
Ksju [112]

Answer:

x = 8

Step-by-step explanation:

These angles are alternate interior angles and m is parallel to n, so they're congruent, meaning that they're equal!

So we can make our equation:

6x - 2 = 46

6x = 48

x = 8

Hope this helps!

7 0
2 years ago
Read 2 more answers
How to solve the problem
lawyer [7]

Answer:

1440

Explanation:

1200 × .05 = 60

60 × 4 = 240

1200 + 240 = 1440

<h3><u>·</u><u>Hope</u><u> </u><u>I</u><u> </u><u>helped</u><u>,</u><u> </u><u>-</u><u>SunnySideHelper·</u></h3>
6 0
2 years ago
What is the value of y ?
Dmitry [639]

Answer:

6

Step-by-step explanation:

Chords within a circle are proportional. Proportional means that they form equal ratios. To solve for y, set up a proportion.

The ratios we will create will be \frac{long}{short} =\frac{long}{short} where each long and short form an angle.

So write:

\frac{12}{8} =\frac{y}{4}

To solve, cross multiply numerator with denominator.

12(4) = 8(y)

48=8y

6=y


4 0
3 years ago
2 + 2 = ?<br> This is for easy points!
Setler79 [48]
4 is the answert :))
6 0
2 years ago
Read 2 more answers
Other questions:
  • Question is in the screenshot
    14·1 answer
  • Can you please help please
    10·2 answers
  • Write the number with the same value as 32 tens
    9·2 answers
  • At which step did Nikita make an error, if at all?
    8·1 answer
  • B a C Which of these angles are adjacent angles?​
    7·1 answer
  • A cylinder has a radius of 10 m and a height of 8 m.
    9·2 answers
  • it is 212.5°C outside when the temperature starts increasing by 2.5°C each hour. How long will it take for the temperature to re
    5·1 answer
  • Your bike was originally purchased for $1,200. It loses about 8% of its original value each year. Write an equation to represent
    14·1 answer
  • Write out the steps to find the solutions for the following quadratic: (x-2)^2 = 25
    10·1 answer
  • Given that a/b = 3/5 and b/c = 4/5<br> Find a:b:c
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!