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
Irina18 [472]
3 years ago
12

Which expression is equivalent to: 5x2 - 10x - 7+ 5x2 + 8?

Mathematics
1 answer:
LenaWriter [7]3 years ago
4 0

Answer:

Step-by-step explanation:

5x² -  10x - 7 + 5x² + 8 = 5x² + 5x² -10x - 7 + 8

                                    = 10x² - 10x + 1

Bring like terms together and add/ subtract the like terms

You might be interested in
Help me pls I will help you
ki77a [65]

Answers

1. 9/2

2. 1/8

3. 5/9

4 0
3 years ago
GIVING BRAINLIEST!!!
Blababa [14]

Answer:

a) -4

b) 2

Step-by-step explanation:

a) f(-2) = 3*-2 + 2 = -4

b) f(x) = 8

3x + 2 = 8

3x = 8 -2

3x = 6

x = 6/3

x = 2

7 0
2 years ago
Kelly flies a distance of 2,100 miles. The trip takes 4 2/3 hours.
Ede4ka [16]

Answer:

450 miles per hour

Step-by-step explanation:

Kelly flies at a distance of 2,100 miles

The time taken for the trip is 4 2/3 hours

Therefore the rate of speed can be calculated as follows

= 2,100 ÷ 4 2/3

= 2,100 ÷ 14/3

= 2100 × 3/14

= 150 × 3

= 450 miles per hour

8 0
2 years ago
Read 2 more answers
Denis, Vera, and Yash are rock climbers. Yash is connected to Vera by a
grin007 [14]

Answer:

33.14\°

Step-by-step explanation:

Let

Y ----> field of vision that Yash's camera would need

we know that

Applying the law of sines

\frac{sin(Y)}{25}=\frac{sin(41\°)}{30}

Solve for sin(Y)

sin(Y)=\frac{sin(41\°)}{30}(25)

Y=sin^{-1}[\frac{sin(41\°)}{30}(25)]

Y=33.14\°

8 0
3 years ago
Read 2 more answers
Find a − b when a = −7 and b = 11.
Mariana [72]

Answer:

-18

Explanation:

a - b

a = -7

b = 11

Insert -7 for 'a' and 11 for 'b'

-7 - 11

= -18

3 0
3 years ago
Other questions:
  • Tell whether the experimental probability of an event is always the same.
    7·1 answer
  • Need help, this is 7th grade, will be 50 points for work shown
    10·1 answer
  • Find a.b. a=[4,1,1/4], b=[6,-3, -8]
    8·1 answer
  • Please helpy geometry. And the ones checked are probably wrong
    5·1 answer
  • Everfi module 3 budgeting for wants
    12·1 answer
  • A coin with a head side and a tail side is flipped 3 times.
    13·2 answers
  • HELP ASAP!!
    7·2 answers
  • 11b.) A sign in a bakery gives the following options. Find each unit price to the nearest cent, and show your reasoning. You can
    7·1 answer
  • Checkpoint: Name 3 coterminal angles<br><br> a. 20°<br><br> b. -134°<br><br> c. 657°
    9·1 answer
  • Plot −5/4 and it's opposite on the number line.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!