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
aniked [119]
3 years ago
12

Use the expression below:

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
7 0

Answer:

Part A: 8b -12c -16

Part B: 4(2b - 3c -4)

Part C: 36

Step-by-step explanation:

Part A:

5b + 3c - 20 + 3b - 15c + 4

= 8b -12c -16

Part B:

Factorising 8b -12c -16

= 4(2b - 3c -4)

Part C:

= 4[2(2)-3(-3)-4)]

= 4[4+9-4]

= 4[9]

= 36

You might be interested in
Given below are some inequalities. Plot the feasible region graphically.
igor_vitrenko [27]

Answer:

0-89x=78/-43

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
एउटा आयताकार चाउरको परिमिति 1004 m भए सो चउरको
frez [133]

Answer:

502m

Step-by-step explanation:

let x and y represent the length and breadth of rectangular meadow respectively.

Given,

Perimeter of the meadow =1004m

or,2(l+b)=1004m

or2(x+y)=1004m

orx+y=1004m/2

or,x+y=502m

i.e sum of length and breadth

5 0
3 years ago
The first inverse operation you would use to solve the equation 2+5x= -8 for x is subtraction. true or false?
jok3333 [9.3K]

Answer:

It would be True

Step-by-step explanation:

2+5x = -8

SUBTACT 2 on both sides and it would look like this:

5x = -8 - (2)

5X= -10

then DIVIDE 5 both side to get "X" ALONE,

x= -10/5

then divide -10 with 5

equal to:

x = -2

4 0
2 years ago
Verify whether the indicated numbers are zeroes of their corresponding polynomials.
Mashcka [7]

Answer:

  • No, incorrect

Step-by-step explanation:

<u>Given</u>

  • Q(s) = -4s^3 + 7s^2 - 24;
  • s = -4 and 1

<u>Verifying zeroes</u>

Q(-4) =

  • -4(-4)^3 + 7(-4)^2 - 24 =
  • 256 + 112 - 24 =
  • 344
  • Incorrect as 344 ≠ 0

Q(1) =

  • -4(1)^3 + 7(1)^2 - 24 =
  • -12 + 7 - 24 =
  • -29
  • Incorrect as -29 ≠ 0

8 0
3 years ago
According to the United States Health and Human Services, the mean height for Americans is 1.757 meters for men and 1.618 meters
Alchen [17]

Answer:

Her z-score is 2.03.

Step-by-step explanation:

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

Michelle’s height is 1.758 meters. What is her z-score?

Michelle's is a woman.

The average height of women is \mu = 1.618 and the standard deviation is \sigma = 0.069

This is Z when X = 1.758. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{1.758 - 1.618}{0.069}

Z = 2.03

Her z-score is 2.03.

7 0
3 years ago
Other questions:
  • the sponsor of a concert promises the concert singer a fee based on $5 per person in the audience. if attendence is below 200, h
    14·2 answers
  • I need help with this quick question!! Extra points and I’m marking brainlist to step by step explanation
    13·2 answers
  • Please help me find the correct answer.
    9·1 answer
  • NEED HELP ASAP. PLS HELP THANX 15 PTS
    15·1 answer
  • What is this? Please answer with an explanation
    11·1 answer
  • POSSIBLE POINTS 10
    13·1 answer
  • When the points are in the SAME quadrant, what operation do you do to find the distance between them?
    10·1 answer
  • Find the values of x for which the denominator is equal to zero for y=3x+5/x-6.
    5·2 answers
  • A radio tower has a 64 ft Shadow cast by the sun. If the angle from the tip of the shadow to the top of the tower is 78.5°. what
    5·1 answer
  • The slope of the line p is__and the slop of the line q is__
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!