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
scoundrel [369]
3 years ago
11

Someone help me with 20 and 19 ASAP please and thank you!!

Mathematics
1 answer:
DanielleElmas [232]3 years ago
6 0

19) No, 3 should multiply both x and 2. As they, (x+2) are both inside the parentheses. The correct answer should be 3x + 6.

20) No, when it comes to exponents and multiply, exponents is done first before multiply. Therefore, Brett should square 3 first before multiplying it by 2. the correct steps should be

2 * 3^2 + 5

= 2* 9 + 5

=18 + 5

=23

You might be interested in
Write the ratio of height of the building to the number of floors.​ Then, find the unit​ rate, and explain what it means in this
Serga [27]

Answer:

I love a building that's nothing feet high

Step-by-step explanation:

Can that building be my new home?

5 0
3 years ago
(9x²+24x-8)-(5x²+3x+10)
motikmotik

Answer:

4x^2 + 21x - 18

Step-by-step explanation:

(9x^2+24x-8)-(5x^2+3x+10)

9x^2+24x-8-5x^2-3x-10

9x^2 - 5x^2 = 4x^2

24x - 3x = 21x

-8 - 10 = -18

Answer: 4x^2 + 21x - 18

8 0
3 years ago
What is the slope of the line that passes through the points (8,-9) and (14,-9)
abruzzese [7]

Answer:

the slope is 0

Step-by-step explanation:

You first do -9--9 and then divide 14-8

6 0
2 years ago
Write in scientific notation: 0.0042
mylen [45]

Answer:

Scientific Notation:

4.2 × 10^-3

E-Notation:

4.2e-3

Engineering Notation:

4.2 × 10^-3

Real Number:

0.0042

______________________________

6120

Step-by-step explanation:

8 0
3 years ago
How do you solve -1=-x+2
Arturiano [62]

-1 = x + 2

-2       -2

-3 = x

x = -3

8 0
2 years ago
Read 2 more answers
Other questions:
  • your friend says that the absolute value equation | 3x + 8 |-9= -5 has no solution because the constant on the right side of the
    8·1 answer
  • Is the square root of 5 plus the square root of 36 rational?
    13·1 answer
  • You are certain to get 2 Kings when selecting 50 cards from a shuffled deck. express the indicated degree of likelihood as a pro
    10·1 answer
  • Simplify the expression -3÷(-2/5)
    15·1 answer
  • My question is that is 22.7 degrees colder than 96.5 degrees?
    5·2 answers
  • Fill in the blank:<br><br> _?__(x+3)=7x+21
    6·2 answers
  • Hannah's hair was 18 inches long .Three years later it was 33 inches long. What was the percent increase,to the nearest hundredt
    9·2 answers
  • How is the graph of y=(x-1)2-3 transformed to produce the graph of y-3(x+4)??
    14·1 answer
  • Determine the DOMAIN and RANGE from the graph
    10·1 answer
  • PLEASE HELP ASAP IM FAILING....!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!