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
saw5 [17]
3 years ago
10

Choose the correct simplification of the expression −3x2(5x − 4x2 − 6).

Mathematics
2 answers:
Bess [88]3 years ago
8 0
Answer B.
- 3 {x}^{2} (5x - 4 {x}^{2} - 6) \\  =  - 15 {x}^{3}  + 12 {x}^{4}  + 18 {x}^{2}  \\  = 12 {x}^{4}  - 15 {x}^{3}  + 18 {x}^{2}
dexar [7]3 years ago
5 0

Answer:

The answer is B

Step-by-step explanation:

(−3x2)(5x−4x2−6)

=(−3x2)(5x+−4x2+−6)

=(−3x2)(5x)+(−3x2)(−4x2)+(−3x2)(−6)

=−15x3+12x4+18x2

=12x4−15x3+18x2

You might be interested in
Solve y = x + 8 for x.<br> x = y + 8<br> x = y - 8<br> X = -y + 8<br> X = -V +8
JulijaS [17]

Answer:

y = x + 8

Step-by-step explanation:

7 0
2 years ago
Need full answer explaining please
Gnesinka [82]
A straight angle is equal to 180 degrees. 180-80=100. 100-60=40. so y=40. vertical angles are congruent so x=40 degrees.
5 0
3 years ago
Read 2 more answers
Write a number between 50 and 80 that has exactly 4 factors,one of which is 2
elixir [45]
50

64=1, 2, 4, 8, 16, 32, 64

80
5 0
3 years ago
4. Suppose that you have an enormous grapefruit that is 92% water (by weight). The grapefruit weights 100 pounds. If the water c
Anton [14]

Answer:

80 pounds.

Step-by-step explanation:

Let W₁ be the initial weight of water in the grapefruit, W₂ be the weight of water in the grapefruit after evaporation, and M be the total weight of the grapefruit after evaporation. Assuming that, originally, the grapefruit weighed 100 pounds with a 92% water content and the weight of the "non-water" part of the fruit (100 - W₁) does not change. The final weight of the grapefruit (M) is given by:

W_1=0.92*100=92\\W_2=0.90*M\\W_2+(100-W_1) = M\\W_2=M-8\\(1-0.9)M=8\\M=80

The grapefruit now weighs 80 pounds.

8 0
3 years ago
Please help!!
Inessa05 [86]
Let the width = w.
The length is 6 times the width, so the length is 6w.
The perimeter is 70.
P = 2L + 2W

70 = 2(6w) + 2(w)

70 = 12w + 4w

70 = 14w

5 = w

The width is 5.
The length is 6 times the width, so the length is 6 * 5 = 30

Area of rectangle = LW

A = 5 * 30 = 150
8 0
3 years ago
Other questions:
  • Sophia injured her leg and had to go to the doctor. She paid the bills with her credit card. What is a disadvantage of using the
    8·2 answers
  • What is ?5*1 3/5 <br> A.5 2/5 <br> B. 5 3/5 <br> C. 8 <br> D. 15
    6·1 answer
  • How do you do number 15 and 17? Help please?
    10·1 answer
  • PLEASE BE KIND AND HELP ME ON THIS QUESTION!<br> WARNING ONLY IF YOUR GOOD AT MATH
    9·1 answer
  • 7-4[3-(4y-5)] plz help me
    8·2 answers
  • Find the area of the figure below.
    9·1 answer
  • Write an equation of the line that passes through the point (2,3) with slope 3
    11·1 answer
  • Solve for .x.<br> 2r - 12<br> 9<br><br> x +9
    5·1 answer
  • If f(x) = 5x + 40, what is f(x) when x = -5?<br> –9<br> -8<br> Ο Ο Ο Ο<br> 7<br> 15
    6·1 answer
  • Express x^2 +12+11 in the form (x+p)^2 +q
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!