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
frozen [14]
3 years ago
5

Is is true that the coefficient of the expression 18z-7(-3+2z) of z is 13

Mathematics
1 answer:
Sever21 [200]3 years ago
3 0
<span>18z-7(-3+2z) 
= 18z + 21 - 14z
= 4z + 21

answer is False
</span><span>coefficient of z is 4, not 13</span>
You might be interested in
Franklin rolls a pair of six-sided fair dice with sides numbered 1 through 6.
Zarrin [17]

Answer:

The answer is 7/36.

Step-by-step explanation:

First, you find out how many possible outcomes there are from rolling a pair of dice. On one cube, you can roll a 1,2,3,4,5, or 6; so there are 6 outcomes. Since there are two cubes, you multiply 6 by itself to get a total of 36 possible outcomes. Next, you find the probability of the sum of the numbers rolled being an even number; the possibilities are 2,4,6,8,10, or 12, which is 6/36. The probability of rolling a multiple of 5; the one possibility is just 5, since we already accounted for rolling a 10 as an even number. So that is 1/36. The word <u>or</u> says that we add the two probabilities, so the final answer is 6/36+1/36=7/36.

6 0
3 years ago
Help with my math READ IT CARFULLY
Irina-Kira [14]

Sci = π . 2 . 2 = 12,56 ⇒ 1/2 Sc1 = 1/2 . 12,56 = 6,28

Srec = 6 . 4 = 24

S= 6,28 + 24 = 30,28

the answer is 30,28

ok done. Thank to me :>

8 0
2 years ago
A ___ is a transformation that changes the size but not the shape of a figure. A dilation can ____ or ____ a figure
Liula [17]

Answer:

1) Dilation

2) enlarge or shrink

Step-by-step explanation:

1) The shape stays the same, but the area and size change based upon the scale factor (k)

2) Dilation can shrink or enlarge something based upon a scale factor

Vote Brainliest!!

8 0
3 years ago
PLEASE HELP ME I HATE MATH.
dsp73

Answer:

BBBBBBBBBB

Step-by-step explanation:

1/4 mile per 22.5 seconds

7 0
3 years ago
Fully simplify 7c - 4h - 2c - 5h​
astraxan [27]

Answer:

5c-9h

Step-by-step explanation:

1) 7c-4h-2c-5h

2) 5c-4h-5h

3) 5c-9h

4 0
2 years ago
Other questions:
  • Find the constant of proportionality (r) in the equation y=rx
    5·1 answer
  • Part of the population of 5,750 elk at a wildlife preserve is infected with a parasite. A random sample of 50 elk shows that 2 o
    14·1 answer
  • Solve each question. show work. -5-b=8
    15·2 answers
  • Simplify (0.4) to the third power
    8·2 answers
  • What the solution set (x+9)^2=169 of this quadratic equations by extracting the roots? ​
    13·1 answer
  • write a word phrase for the algebraic expression 3x - 7. the difference of three times a number x and seven the difference of se
    12·1 answer
  • HELP!!!!!!!! 15 POINTS
    8·1 answer
  • Which rectangular prism has the greatest volume?
    8·2 answers
  • Please help I attached a picture ​
    5·1 answer
  • What is the value of b?<br><br> help help
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!