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
nordsb [41]
2 years ago
6

Perform the operation. (9x2 + 6x – 7) + (-9x - 5) PLS HELP ASAP PLS

Mathematics
2 answers:
FrozenT [24]2 years ago
7 0

Answer:

The answer is 21

Step-by-step explanation:

I searched it up.

qaws [65]2 years ago
6 0

Answer:

21

Step-by-step explanation:

(9x2 + 6x – 7) + (-9x - 5) = 21

You might be interested in
The hypotenuse of a 45°-45°-90° triangle measures 128 cm. A right triangle is shown. The length of the hypotenuse is 128 centime
Aleks [24]

Answer:

64√2 or 64 StartRoot 2 EndRoot

Step-by-step explanation:

A 45-45-90 traingle is a special traingle.  Let's say one of the leg of the triangle is x. The other one is also x because of the isosocles triangle theorem.  Therefore, using the pytagorean theorem, you find that x^2+x^2=c^2.  2(x)^2=c^2.  You then square root both sides and get c= x√2.  

Therefore, the two legs are x and the hypotenuse is x√2.  x√2=128 because the question says that the hypotenuse is 128.  Solve for x by dividing both sides by √2.  X=128/√2.  You rationalize it by multiplying the numberator and denominator of the fraction by √2.  √2*√2= 2.

X=(128√2)/2= 64√2 cm.

Since X is the leg, the answer would be 64√2

3 0
2 years ago
Read 2 more answers
Let ∠D be an acute angle such that cosD=0.64. Use a calculator to approximate the measure of ∠D to the nearest tenth of a degree
Aleks04 [339]

Answer:

50.2 degreees

Step-by-step explanation:

I did math

7 0
2 years ago
Read 2 more answers
Which expression could be used to find the distance between point A and point B?
olga nikolaevna [1]

Answer:

D

Step-by-step explanation:

because it seem to be correct

4 0
2 years ago
Read 3 more answers
A rate that describes how much smaller or larger the scale drawing is than then real object
Tems11 [23]
I'm not sure what is being asked here, but a rate that describes how much smaller or larger the scale drawing is than the real object would be a ratio such as 1in:25ft
6 0
3 years ago
The product of two mixed numbers that are each between 4 and 5 is between 16 and 25 true or false
Leni [432]

9514 1404 393

Answer:

  True

Step-by-step explanation:

The smallest the product could be is 4×4 = 16.

The largest the product could be is 5×5 = 25.

The product must be between 16 and 25. (true)

5 0
2 years ago
Other questions:
  • Which words describe this shape? Mark all that apply.A polygon(B) open shapepentagonD quadrilateral
    7·2 answers
  • molly ate one-third of bags of chips on friday. on saturday, she ate one-half of what was left in the bag. how much of the whole
    11·2 answers
  • Is graph a proportional
    12·1 answer
  • Use the Ratio Test to determine whether the series is convergent or divergent. [infinity] n! 112n n = 1 Identify an. Correct: Yo
    14·1 answer
  • The velocity of a 150 kg cart changes from 6.0 m/s to 14.0 m/s. What is the magnitude of the impulse that acted on it?
    10·1 answer
  • . Trent’s mom said he could spend no more than
    15·1 answer
  • 4) Andre types 208 words in 4 minutes. Noah types 342 words in 6 minutes. Who types faster? *
    6·2 answers
  • Help please, asap. i need this done
    12·2 answers
  • Find the slope of a line that passes through the following points (3,2) (5,-3)
    7·1 answer
  • Giving brainliest; What is the tragicomic ratio for the cosC?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!