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
Keith_Richards [23]
2 years ago
13

Solve each equation by factoring. 1) 7x² + 63x = -126

Mathematics
1 answer:
bearhunter [10]2 years ago
7 0
7x^2 + 63x + 126 = 0
7(x^2 + 9x + 18) = 0
7(x + 3)(x + 6) = 0
X = -3 X= -6
You might be interested in
Write the number seven and one - third as a decimal rounded to the nearest hundredth
bagirrra123 [75]
Well you know you keep the 7. 1/3 well you see it as .3333 so just go 7.33 because 7.333 and since it's a 3 you keep it.
4 0
3 years ago
Read 2 more answers
Can some explain steps​
Mashutka [201]

Answer:

r = 3.

Step-by-step explanation:

16 = 10 + √(3r + 27)

√(3r + 27) = 6

Square both sides:

3r + 27 = 36

3r = 36 - 27 = 9

r = 3.

Check the result:

Left side of the equation = 16

Right side = 10 + √(9 + 27)

                  = 10 + √36 = 16

5 0
2 years ago
Read 2 more answers
Suppose that 21 inches of wire costs 63 cents.
defon

Answer:

162 cents

Step-by-step explanation:

to find the rate you want take the inches which is 21 and divide by the cost which is 63 and find the rate is 3 which means each inch costs 3 cents and so with that rate you can find the cost of 54 inchest of wire so you take your 54 inches and multiply it by 3 which is the cents per inch and find that 54 inches of wire would cost you 162 cents

6 0
2 years ago
Greatest common factor of 10x^3 - 12x^3
Mila [183]

Answer:2x^3

Step-by-step explanation:

10x^3-12x^3

2x^3(5-6)

7 0
3 years ago
7. which of the following does the net form?
Lana71 [14]
We will need a picture. If you don't have one then we could possibly tell you the wrong answer and I really don't want that to happen.
4 0
3 years ago
Other questions:
  • The hypotenuse of a 30°-60°-90° triangle measures 10 inches. Which could be the length of a leg of the triangle?​
    5·1 answer
  • How to find the slope of a parabola at a given point?
    5·1 answer
  • You wanted to draw an enlargement of design that printed on a card that is 4 in by 5
    10·1 answer
  • Por qué la constitución de 1812 supuso un avance democrático? Choices : A: Porque acabó con el liberalismo. B: Porque acabó con
    9·1 answer
  • Order the numbers from least to greatest A 0.35 B 0.359 C 1
    8·2 answers
  • The triangles below are simular. which statement about the triangles is true?
    12·1 answer
  • A geometric sequence has a4 = 4 and a5 = 7. What is a1 ? Your answer​
    15·1 answer
  • Let Ir = 17 at an angle of 40° and s = 14 at an angle of 160°. Which expression represents r + s|?
    8·1 answer
  • A tractor-trailer travels 205. 296 miles in 3. 12 hours. What is the speed at which the tractor-trailer is traveling?
    13·1 answer
  • A store buys a remote control robot for $60. They mark it up by 30%. What will be the selling price
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!