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
Nikitich [7]
2 years ago
10

What are the solutions to x2 + 8x + 7 = 0?

Mathematics
1 answer:
Ymorist [56]2 years ago
6 0
The answer is x=-7 and x=-1
You might be interested in
The domain and f^1(x)
TEA [102]

B

To solve for the inverse, just swap the x and y and solve for the new y.

y=\sqrt{x} -8

x=\sqrt{y}-8

x+8=\sqrt{y}

(x+8)^2=y

Then inspect both functions for the domain.

In the original function, x has to be greater than or equal to 0 or else you would have a negative square root which is impossible.

The inverse function has no limitations as any x could make that true.

The main things that will limit domain is square root of negative or divide by zero.

Therefore, x>=0 is the only domain restriction.

8 0
2 years ago
Dave is on a kayaking trip. On the first day, he travels 15 miles. On the second day, he travels 35 miles and the third day he r
zubka84 [21]

Answer:

30 miles

Step-by-step explanation:

average= sum of miles ÷ days to cover = 30

HOPE IT HELPS

5 0
3 years ago
What is the value of 6 in 70,681? Explain how you know.
Dafna11 [192]

Answer:

it's 100

Step-by-step explanation:

70000

0000

600

80

1

I don't know if you understand

6 0
1 year ago
Sam is delivering two refrigerators that each weigh 105 kilograms there is an elevator with a weight limit of 1,00 pounds
rosijanka [135]

Question:

Sam is delivering two refrigerators that each weigh 105 kilograms. There is an

elevator with a weight limit of 1,000 pounds. Can he take both refrigerators on the

elevator in one trip? (1 kilogram 2.2 pounds)

Answer: yes he can

Step-by-step explanation:

Yes he can.

He can if the total weight of the 2 refrigerator didn't exceed the weight limit of the elevator.

Therefore:

Since 1 refrigerator weigh 105kg

2 refrigerator = 2 x 105kg = 210kg

The weight limit of the elevator 1000pounds convert to kg.

Since

2.2 pounds = 1kg

1000 pounds = 1000/2.2 kg

=454.55kg

Weight limit of the elevator = 454.55kg.

Since Weight of the 2 refrigerator is less than

weight limit of the elevator, he can take both refrigerators on the elevator in one trip

5 0
3 years ago
Please answer all of the questions and if u are correct I will give u brainliest ;) xoxo <3
garik1379 [7]

Answer:

the answer for the 2nd question is 1/4

Step-by-step explanation:

i took the test

3 0
2 years ago
Other questions:
  • Beverages inc. sells espresso for 8.50 per pound and roasted coffee for 10.25 per pound. the following equations represent a rec
    6·2 answers
  • Find the area of the part of the sphere x2 + y2 + z2 = 100z that lies inside the paraboloid z = x2 + y2.
    8·1 answer
  • Two fuel tanks with the dimensions shown have the same volume. What is the value of h?
    7·1 answer
  • Find the of this circle in terms of pi
    14·2 answers
  • In math, how to find x?
    15·1 answer
  • Please help me with this probability question!
    5·2 answers
  • A line segment has end points at (-3, -5) and (4, 1). What is it’s length?
    7·1 answer
  • What is the solution for y=2x+3, y=2x-3
    5·1 answer
  • Let's say you want to know how many pages your 10 favorite books have. After checking
    14·1 answer
  • Jack deposited $47,323.15 in an account earning 5% interest compounded annually.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!