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
Setler [38]
3 years ago
10

X^2 + 8x + 7 = 0

Mathematics
1 answer:
dsp733 years ago
7 0

Answer:

x - intercepts: -1, -7

Solutions: [is the x-intercepts] -1,-7

Factors: (x+1)(x+7)

Vertex: -4, -9

Axis of symmetry: x = -4

Step-by-step explanation:

You might be interested in
Calculate the account balance for $800 left on deposit for 255 days earning 5.25% compounded daily.
Svetradugi [14.3K]
The value would be 829.89.

The formula we use is 

A=p(1+\frac{r}{n})^{nt},

where A is the total amount, p is the principal, r is the rate expressed as a decimal number, n is the number of times per year the interest is compounded, and t is the number of years. 

We will use 800 for p; 5.25/100 = 0.0525 for r; 365 for n; and (255/365) for t (since it is not a full year):
A=800(1+\frac{0.0525}{365})^{\frac{255}{365}\times365}
\\
\\=800(1+\frac{0.0525}{365})^{255}=829.89
3 0
3 years ago
If the area of a rectangle with length (4x) is 4x2 + 12x, find the width.​
8090 [49]

Answer:

The width of a rectangle is: w = x+3

Step-by-step explanation:

Given

The length of rectangle = l = 4x

The area of rectangle = A = 4x² + 12x

To determine

The width of rectangle = w = ?

We know that the formula of the area of the rectangle is

A = wl

substitute A = 4x² + 12x and l = 4x in the equation to determine the width w of the rectangle

4x² + 12x = w×4x

w = [4x² + 12x] / [4x]

Factor 4x² + 12x:   4x(x+3)

w = [ 4x(x+3) ] /  [4x]

w = x+3

Therefore, the width of a rectangle is: w = x+3

3 0
3 years ago
Mark rode his bike 22/8 miles. which mixed number shows the fraction of miles he rode his bike
Vlad1618 [11]

Answer:

Hey there!

There aren't any options, but the correct answer would be 2 6/8, which simplifies to 2 3/4.

Let me know if this helps :)

5 0
3 years ago
Read 2 more answers
1.8 divided by 3 please.
lidiya [134]

Answer: 0.6 is the answer

8 0
2 years ago
What is the value of x when the Richter scale rating is 7.8? Round your answer to the nearest hundredth.
kvv77 [185]
4b. Laura has a 12-foot ladder. The safety instructions recommend the
base of the ladder be placed 4 feet from the base of the wall. How highwill the ladder be able to reach on the wall? WRITE YOUR ANSWER AS A SIMPLIFIED RADICAL. (HINT: Use the abbreviation sqrt to mean "square root of." For example an answer might look like 5sqrt3, and be read "five times the square root of 3".)
4 0
2 years ago
Other questions:
  • 23 - 4 - 6 + 7 + 5 - 1 x 0 + 1 = x<br> Solve the equation.
    11·1 answer
  • Please hurry!!!! I’m on a strict time limit!!!!
    8·2 answers
  • For the equation below determine the value of y if x=2.
    13·1 answer
  • Determine the value of y when x=15 if y=6 when x=30
    8·1 answer
  • If the average (arithmetic mean) of 2, 7, and x is 12, what is the value of x?
    5·1 answer
  • A research team conducted a critical study, and using the data they gathered in their random experiment, a 95% confidence interv
    11·1 answer
  • (-5,2), (-3,4), (1,0), (-1, -2) <br> What shape is it?
    11·1 answer
  • Tom and David get their haircut at the barber shop on Saturdays.Tom gets his hair cut every 3 weeks. David gets his hair cut eve
    10·1 answer
  • Help ASAP please!!!!!!!!!​​
    13·1 answer
  • I tried finding this one earlier and it didn’t work , so please help again !
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!