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
user100 [1]
2 years ago
12

Use the Distributive Property to expand (−2x−7)4

Mathematics
1 answer:
Westkost [7]2 years ago
5 0

Answer:

Step-by-step explanation:

4(-2x - 7)

4*-2x -8x

4*-7 = -28

-8x - 28

You might be interested in
Cuboid ABCDEFGH is shown
gtnhenbr [62]

Answer:

The angle formed between CF and the plane ABCD is approximately 47.14°

Step-by-step explanation:

The given parameters are;

BC = 6.8

DE = 9.3

∠BAC = 52°

We note that the angles formed by the vertex of a cuboid are right triangles, therefore, by trigonometric ratios, we get;

sin∠BAC = BC/(The length of a line drawn from A to C)

∴ The length of the line drawn from A to C = BC/sin∠BAC

The length of the line drawn from A to C = 6.8/sin(52°) ≈ 8.63

∴ AC = 8.63

By trigonometry, we have;

The angle formed between CF and the plane ABCD = Angle ∠ACF

tan\angle X = \dfrac{Opposite \ leg \ length}{Adjacent\ leg \ length}

tan\angle ACF = \dfrac{FA}{AC}

In a cuboid, FA = BG = CH = DE = 9.3

\therefore tan\angle ACF = \dfrac{9.3}{8.63}

\therefore \angle ACF = arctan \left(\dfrac{9.3}{8.63} \right) \approx 47.14^{\circ}

The angle formed between CF and the plane ABCD = Angle ∠ACF ≈ 47.14°

4 0
3 years ago
Function A and Function B are linear functions. Compare the two functions and choose all that are correct.
Olegator [25]

Answer:

  2 .The slope of Function A is less than the slope of Function B

Step-by-step explanation:

A graph of Function A shows it has a y-intercept of 4, the same as that of Function B. (Statements 3 and 4 are not correct.)

The slope of Function A is 2, which is less than the slope of 3 that Function B has. (Statement 2 is correct; statement 1 is not.)

_____

<em>More detailed working</em>

The slope of Function A can be figured easily between the points with x-values that differ by 1:

  m = (y3 -y2)/(x3 -x2) = (24-22)/(10-9) = 2/1 = 2 . . . . . Fun A has slope of 2.

The slope of Function B is the coefficient of x in the equation: 3.

__

The y-intercept of Function A can be found starting with point-slope form:

  y -22 = 2(x -9)

  y = 2x -18 +22

  y = 2x +4 . . . . . . . slope-intercept form

The intercept of +4 is the same as that of Function B.

5 0
3 years ago
Read 2 more answers
9. If ground beef costs $4.98 for 3 pounds, then what is the unit rate (cost per
Drupady [299]

Answer:

1.66 pounds

Step-by-step explanation:

4.98 dollars divided by 3 pounds

4 0
3 years ago
Why did you multiply 15 by 3?
navik [9.2K]
To get an answer which is....45
8 0
3 years ago
Read 2 more answers
PLEASE HELP WITH 17 and 18
Zinaida [17]
17
linear has 1 as highest exponent
D has x^2
D is not linear



18. find slope
(y2-y1)/(x2-x1)=(-1-2)/(0-4)=-3/-4=3/4
y=3/4x+b

B is answer
8 0
3 years ago
Other questions:
  • How can you use transformations to graph this function?<br><br> y=3x<img src="https://tex.z-dn.net/?f=%207%5E%7B-x%7D%20" id="Te
    9·1 answer
  • You are given a circle of radius 12. What is the segment area of an arc that is 90 degrees?
    8·1 answer
  • you worked 6 3/4 hours on Monday 7 1/4 on Tuesday 8 1/4 on Wednesday 7 1/4 on Thursday and 7 3/4 on Friday how many hours did yo
    6·1 answer
  • 3x + 5 = 39<br> How do I do this. Do I make the x by itself
    12·2 answers
  • Rafael counted a total of 40 white cars and yellow cars there were nine times as many white cause as yellow cars how many white
    5·1 answer
  • On st patrics day you took note of who was coming into your restruant
    11·1 answer
  • What must be added to a + b to get a​
    13·1 answer
  • Which of the following mixed numbers has the same decimal value as 110 147/168
    5·2 answers
  • Find what x equals<br> (3/8)+x=(5/8)<br><br> find what t equals<br> t-(-5)=10
    9·1 answer
  • ANSWER ASAP please &lt;3
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!