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
Zina [86]
3 years ago
13

4x 2 −28x+40 factored completely plzzzzz help mee

Mathematics
2 answers:
Mkey [24]3 years ago
7 0

Answer:

4(x-2)(x-5)

Step-by-step explanation:

1. Simplify

4x^2 - 28x + 40 = x^2 - 7 +10

2. Factor

x^2 - 7x + 10 = (x-2)(x-5)

3. Multiply the number that divides from expression

(4)(x-2)(x-5)

4(x-2)(x-5)

blagie [28]3 years ago
4 0

Answer: 4( x - 5)( x - 2)

Step-by-step explanation:

4x^2 -28x + 40

4 ( x - 5)(x - 2)

You might be interested in
The width of a rectangle is 4 inches (in) and the area of the rectangle is 32 in2? Which of the following represents the length
miv72 [106K]

Answer:

A. 8

Step-by-step explanation:

32 divided by 4 = 8

5 0
3 years ago
3^x+2=8^x-1 Solve for x.
zubka84 [21]

I assume the equation is supposed to be

3^{x+2}=8^{x-1}

Then we can write

9\cdot3^x=\dfrac18\cdot8^x\implies\left(\dfrac38\right)^x=\dfrac1{72}

Take the logarithm of base 3/8 on both sides:

\log_{3/8}\left(\dfrac38\right)^x=\log_{3/8}\dfrac1{72}

\implies x\log_{3/8}\dfrac38=-\log_{3/8}72

\implies x=-\log_{3/8}72

- - -

If the equation is actually 3^x+2=8^x-1, I'm afraid it cannot be solved exactly.

5 0
3 years ago
A doctor is measuring the average height of male students at a large college. The doctor measures the heights, in inches, of a s
RoseWind [281]

Answer:

There is a 95% confidence that the true mean height of all male student at the large college is between the interval (63.5, 74.4).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population mean is:

CI=\bar x\pm z_{\alpha/2}\times\frac{\sigma}{\sqrt{n}}

The (1 - α)% confidence interval for population parameter implies that there is a (1 - α) probability that the true value of the parameter is included in the interval.

Or, the (1 - α)% confidence interval for the parameter implies that there is (1 - α)% confidence or certainty that the true parameter value is contained in the interval.

The 95% confidence interval for the average height of male students at a large college is, (63.5 inches, 74.4 inches).

The 95% confidence interval for the average height of male students (63.5, 74.4) implies that, there is a 0.95 probability that the true mean height of all male student at the large college is between the interval (63.5, 74.4).

Or, there is a 95% confidence that the true mean height of all male student at the large college is between the interval (63.5, 74.4).

4 0
3 years ago
In an 80/20 mortgage, what is the second mortgage used for?
avanturin [10]

Answer:

The first loan covers 80 percent of the home’s price, while the second covers the remaining 20 percent.

Step-by-step explanation:

they are still a home price percentage

5 0
3 years ago
Read 2 more answers
10x + 9y=0<br> 8x + 18y=0
Luba_88 [7]

Answer:

x=0 y=0

Step-by-step explanation:

multiple the first equation by 2

after subtract equation 2 from 1

after getting x you substitute the value of x in any of the equation for your y

3 0
3 years ago
Other questions:
  • How do you make this equation 13+5y=6x into slope-intercept form?
    7·1 answer
  • What is the value of i^n if the remainder of n/4 is 2?
    12·2 answers
  • Theoretical probability is approximated by conducting trials and recording the ratio for the number of occurrences of the event
    8·1 answer
  • 2.
    9·1 answer
  • I need helppp on this question
    6·2 answers
  • Original Price: $90 Sale Price: $58.50<br> Can you also show the math
    10·1 answer
  • Question : Jody got an 80% on a test that had 60 total points on it. How many points did Jody get correct?
    9·1 answer
  • PLEASE HELP
    6·1 answer
  • Plss herlp mehh (thank ver muth)
    15·2 answers
  • Apply the 45°-45°-90° Triangle Theorem to find the length of a leg of a right triangle if the length of the hypotenuse is 8/2
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!