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
Olin [163]
3 years ago
7

-15) (-2)=

Mathematics
1 answer:
ivanzaharov [21]3 years ago
4 0

Answer: sorry dont know

Step-by-step explanation:

You might be interested in
A cubic inch of PVC material weight 0.063 pounds per cubic inch. What’s the weight of a 36 inch piece of PVC pipe with an outsid
artcher [175]

Answer:

Option B. 0.783 pounds

Step-by-step explanation:

step 1

Find the area of a a 36 inch piece of PVC pipe with an outside diameter of 0.82 inches and an inside diameter of 0.75 inches

The area of a circle is equal to

A=\pi r^{2}

we have

r2=0.82\ in

r1=0.75\ in

assume

\pi =3.14

A=\pi (r2^2-r1^2)

substitute the values

A=(3.14)(0.82^2-0.75^2)

A=0.345086\ in^2

step 2

Find the volume of the piece of PVC

Multiply the area by its length

V=0.345086(36)=12.42\ in^3

step 3

Find the weight of the piece of PVC

Multiply the volume by its density

The density is 0.063\frac{lb}{in^3}

so

W=12.42(0.063)=0.783\ lb

4 0
3 years ago
F(y) = y² + 10y + 21 <br>f'(2) = ? <br>​
Ahat [919]

Answer:

14

Step-by-step explanation:

f'(2) = 2y + 10

f'(2) = 2(2) + 10

= 4 + 10

= 14

3 0
2 years ago
Read 2 more answers
What is 1 7/40 in the simplest form
OleMash [197]
That is the simplest form
4 0
3 years ago
Read 2 more answers
How is a simontaneous equation solve or the procedures to solve it
Marina CMI [18]

Answer:

on my knowledge i can tell you the methods used to solve it which are;

Step-by-step explanation:

<h3>Elimination method.</h3><h3>Substitution method.</h3><h3>Graphical method.</h3>
3 0
2 years ago
John goes running every morning. He can run 3 miles in 1 hour. How many miles would he be able to run in 1 and ½ hours? A. 4.5 m
BARSIC [14]

Answer:

2

Step-by-step explanation:

well less than 3

7 0
3 years ago
Read 2 more answers
Other questions:
  • Megan start studying at 10 minutes past 4 and finishes at 5:49 how long did she study for give me a start middle and end
    14·1 answer
  • Order the fractions in order from greatest to least: 3/8, 1/3, 1/4, 2/7
    5·2 answers
  • Which of the following greatest <br>6+(-2)<br>6-(-2)<br>6×(-2)<br>6+(-2)​
    13·1 answer
  • There are 30 students in your class and 16 are boys, write each ratio
    14·2 answers
  • What number 0.2% of 50?
    6·1 answer
  • Investors buy a studio apartment for $240,000. Of this amount, they have a down payment of
    11·1 answer
  • Help pls and thank you! :))
    9·2 answers
  • Find the value of x with explanation please
    5·1 answer
  • PLEASE HELP !! I'LL GIVE YOU BRAINLIEST !!
    5·1 answer
  • The cost of a car rental is 30​$ per day plus 27 cents per mile. You are on a daily budget of 76 ​$. Write and solve an inequali
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!