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
mrs_skeptik [129]
3 years ago
11

(-10x^2+9)+(8x^2-5x+7) (−10x 2 +9)+(8x 2 −5x+7)

Mathematics
1 answer:
zavuch27 [327]3 years ago
7 0

Answer:

-2x^2-5x+16

Step-by-step explanation:

-10x^2-8x^2-5x+9+7=-2x^2-5x+16

You might be interested in
Apply the 45º-45º-90º Triangle Theorem to find the length of a leg of a right triangle if the length of the hypotenuse is 8{x} i
Leto [7]

9514 1404 393

Answer:

  (4√2)x inches

Step-by-step explanation:

The leg of an isosceles right triangle is (√2)/2 times the length of the hypotenuse. For a hypotenuse of 8x inches, the leg length is ...

  (8x)(√2)/2 = (4√2)x . . . inches

5 0
3 years ago
Pls help I forgot what a polygon is
slava [35]

Answer:

A polygon is a plane figure with a least three straight sides and angles, and typically five or more.

4 0
3 years ago
Read 2 more answers
Find the domain of this equation {-2
posledela
Where’s the rest of the question?
5 0
3 years ago
Please help me with these problems.
kkurt [141]
The first question is A and number 2 is B
7 0
4 years ago
Log (w2+21) - log (10)
UNO [17]

Answer:

w =7\ or\ w =3

Step-by-step explanation:

Given

The right question is:

\log(w^2+ 21) = \log(10w)

Required

Solve for w

\log(w^2+ 21) = \log(10w)

Cancel log on both sides

w^2+ 21 = 10w

Equate to 0

w^2 - 10w+ 21 = 0

Split

w^2 - 3w - 7w+ 21 = 0

Factorize

w(w - 3) - 7(w-3) = 0

Factor out w - 3

(w - 7)(w-3) = 0

Solve for w

w - 7 = 0\ and\ w - 3 = 0

w =7\ or\ w =3

6 0
3 years ago
Other questions:
  • Choose the correct postulate, theorem, property, or definition that justifies each of the following statements.
    11·2 answers
  • Perform the Indicated Operation. (-18)-(4)
    8·2 answers
  • 868/31 long division
    14·2 answers
  • What is another way to write 3427.68 divided by 54
    12·2 answers
  • the charge for a mission to the zoo is $3.25 for each adult and $1.50 for each student. On a day when 400 people paid to visit t
    7·1 answer
  • Can someone help me on questions 6 and 7 plz
    8·1 answer
  • Can somebody please help with this ?? :)
    5·1 answer
  • For a standard normal distribution, find the approximate value of P(z≤0.42). Use the portion of the standard normal table below
    5·2 answers
  • F(x) = 4 - X<br> What is f(-3)?<br> show work
    6·1 answer
  • There are 300 people in a town. If each week the no. of infected people double. Week 0 there was 1 infection, in week 8 there we
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!