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
MariettaO [177]
3 years ago
10

What is the complete factorization of x2 + 4x - 45?

Mathematics
1 answer:
Citrus2011 [14]3 years ago
6 0

Answer: c

Step-by-step explanation:

x^2+4x-45

(x+9)(x-5)

You might be interested in
If p(x) = x2 – l and q ( x ) = 5x – 5 which expression is equivalent to (p-q) (x)?
Natali [406]

Answer:

x^2 - 5x + 4.

Step-by-step explanation:

(p - q)(x) =  x^2 - 1 - (5x - 5)

= x^2 - 5x - 1 + 5

= x^2 - 5x + 4.

7 0
3 years ago
Do one of the​ following, as appropriate.​ (a) Find the critical value z Subscript alpha divided by 2​, ​(b) find the critical v
babymother [125]

Answer:

We want to construct a confidence interval at 99% of confidence, so then the significance level would be 1-0.99 =0.01 and the value of \alpha/2 =0.005. And for this case since we know the population deviation is not appropiate use the t distribution since we know the population deviation and the best quantile assuming that the population is normally distributed is given by the z distribution.

And if we find the critical value in the normal standard distribution or excel and we got:

z_{\alpha/2}= \pm 2.576

And we can use the following excel code:

"=NORM.INV(0.005,0,1)"

Step-by-step explanation:

For this case we have the following info given:

\alpha=0.01, n =26, \sigma = 28.9

We want to construct a confidence interval at 99% of confidence, so then the significance level would be 1-0.99 =0.01 and the value of \alpha/2 =0.005. And for this case since we know the population deviation is not appropiate use the t distribution since we know the population deviation and the best quantile assuming that the population is normally distributed is given by the z distribution.

And if we find the critical value in the normal standard distribution or excel and we got:

z_{\alpha/2}= \pm 2.576

And we can use the following excel code:

"=NORM.INV(0.005,0,1)"

7 0
3 years ago
While traveling to Europe, Phelan exchanged 250 US dollars for euros. He spent 150 euros on his trip. After returning to the
fredd [130]

Answer:

140.42 US dollars

Step-by-step explanation:

250x1.3687=342.175

342.175-150=192.175

192.175/1.3687=~140.41

4 0
3 years ago
Need help ASAP ?!!!!
natulia [17]

So remember that the area of a circle is A = π * r^2, with r = radius. In this case, the radius is 1.5, and with that info our equation is A = π * 1.5^2 .


For this, all you need to do is solve the exponents, and your answer is A = 2.25π yds^2

8 0
4 years ago
Solve the equation 12x + 6y = 24 for x.
Ulleksa [173]

Answer:

The answer is x=2-(y/2)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • What is 42 increased by 50%
    5·1 answer
  • Which is correct to find the value of the coefficient of determination (r2)?
    9·1 answer
  • I will give brainliest! Express the equation 1/4(y + 12) = (x - 5)² in the form y= a(x - h)² +k. **This is high-school coordinat
    10·1 answer
  • How many dollars is 315 coins?
    7·2 answers
  • HELP ME PLEASE!!!!!!!
    13·1 answer
  • Can someone plzzz help with this worksheet I need help with all the questions bc I’m not understanding this plzzz
    12·1 answer
  • If ΔGTR ≅ ΔNAO, then finish the following congruence statements and mark the corresponding congruent sides and the corresponding
    13·1 answer
  • Molly has 10 pencils in her backpack. 4 of those pencils are red. What is the percent of pencils that are NOT red?
    8·2 answers
  • Find the sum of the first 36 terms of the following series, to the nearest integer.<br> 2, 5,8,...
    7·1 answer
  • HALP PLS<br> what is x?<br><br> x =x=x, equals <br> ^\circ <br> ∘<br> degrees
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!