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
zvonat [6]
3 years ago
10

Evaluate 5x3 - 21 + 7 when x = -2.

Mathematics
2 answers:
Sliva [168]3 years ago
8 0

Answer:

26

Step-by-step explanation:

5x³ - 21 + 7

x = 2

then:

5x³ - 14

5*2³ -14

5*8 - 14

40 - 14

26

OverLord2011 [107]3 years ago
8 0

Answer:

The simplified answer to the given equation is -54.

Step-by-step explanation:

For this problem, we are given the value of x.

<em>x = -2</em>

So, let's plug in this value into our expression soit can be easier to solve.

5(-2)³ - 21 + 7

First, simplify the exponents.

5(-8) - 21 + 7

Now, multiply 5 by -8.

-40 - 21 + 7

Subtract -40 from 21.

-61 + 7

Add 7 to -61.

-54

You might be interested in
(50 points) What is the value of sin J for this triangle?
weqwewe [10]

Answer:

8/17

Step-by-step explanation:

right angle box means that area is the bottom

soh cah toa

hypotenuse is 17

hypotenuse is usually the biggest number

opposite is 8

sin is opposite/ hypotenuse

sin is 8/17

6 0
3 years ago
HELP ME!!
inysia [295]

Answer:

y intercept (0,-2) x intercept (3,0)

Step-by-step explanation:

first we have to solve for y.

2x-3y=6

step 1 subtract 2x from each side

-3y=-2x+6

step 2 divide each side by -3

y=2/3x-2

now I am going to graph this to make it easier for you

5 0
3 years ago
How many factors of 2 are there in 2³? answers&gt; 1 2 3 5​
algol [13]

Answer:

2

Step-by-step explanation:

2^3= 2*2*2

factors of 8= 1,2,4,8

factors of 2= 1,2

6 0
3 years ago
Write the decimal place name for each of the underlined digits. a. .423 b. .32678 c. .4524 d. .3006
kogti [31]
A= 4 tenth 2 hundredth 3 thousandth
b= 3 tenth 2 hundredth 6 thousandth 7 ten thousandth 8 hundred thousandth
c= 4 tenth 5 hundredth 2 thousandth 4 ten thousandth
d= 3 tenth 0 hundredth 0 thousandth 6 ten thousandth 
5 0
3 years ago
Read 2 more answers
Phillip is standing across the classroom from
miv72 [106K]

Answer:

x^2+y^2=d^

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Vivian bought 6 bottles of cooking oil. She gave the cashier $40 and expected $y change. (a) express the cost of 1 bottle of coo
    10·2 answers
  • I really need help right now I'm stuck on this one
    8·1 answer
  • An urn contains three white balls and two red balls. The balls are drawn from the urn, oneat a time without replacement, until a
    11·1 answer
  • Q. You are working on an air conditioning system. A
    7·1 answer
  • What number can u add to π to get a rational number?<br><br> A. 1/π<br> B. 0<br> C. 2<br> D. -π
    14·1 answer
  • 100 Points. Refer to image.
    11·2 answers
  • Easy Question<br><br> Topic: Volume<br><br> Focus on question 10
    10·2 answers
  • A square has a perimeter of 36 ft. What is the length of each side?
    15·1 answer
  • Find the area please. Round to the nearest tenth if necessary.
    11·1 answer
  • Ann used 5 2/3 gallons of gas on Sunday and 1 1/4 gallons of gas on Monday. How many more gallons of gas did she use on Sunday?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!