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
inna [77]
3 years ago
10

Which expression is equivalent to 13 - (-21) ?

Mathematics
2 answers:
kifflom [539]3 years ago
5 0
The answer is 'Choice A'
BaLLatris [955]3 years ago
4 0

Answer:

Choice A

Step-by-step explanation:

Negative times negative equals positive, is -21 would change to positive 21

Hope this helps!

You might be interested in
one leg of a right triangle has length 7. the lengths of the other two sides are whole numbers. the length of the other leg is ?
zalisa [80]
Sets of three integers that could be right triangles are called pythagorean triples. the only pythagorean triple including 7 is 7, 24, and 25. so the length of the other leg is 24 and the length of the hypotenuse is 25. hope this helped!
4 0
3 years ago
Read 2 more answers
For what values (cases) of the variables the expression does not exist: a a 2x−4
Natasha2012 [34]

Step-by-step explanation:

When the denominator is zero, the expression is undefined

2x-4=0

2x=4

x=2

5 0
3 years ago
The sum of four consecutive numbers is 42 what is the smallest number
vredina [299]
Let us take a number x
The four consecutive numbers will be
x+1, x+2, x+3

Thus our equation will be
x + x+1 + x+2 + x+3 = 42
4x + 6 = 42
4x = 36
x= 36/4
x= 9

Thus the four numbers are (substitute)
x=9
x+1=9+1=10
x+2=9+2=11
x+3=9+3=12

9,10,11,12
6 0
3 years ago
Read 2 more answers
Please help!!! asap ( 15 pts!!)
DENIUS [597]

Answer:

A) 40

B) 96

C) 60

D) 70

:)


6 0
3 years ago
A car is purchased for $27,500. After each year, the resale value decreases by 35%. What will the resale value be after 5 years?
e-lub [12.9K]

Answer:

$3,190.80

Step-by-step explanation:

yr 1:

27500 x .35 = 9625

27500 - 9625 = 17875

yr 2:

17875 x .35 = 6256.25

17875 - 6256.25 = 11618.75

yr 3:

11618.75 x .35 = 4066.5625

11618.75 - 4066.5625 = 7552.1875

yr 4:

7552.1875 x .35 = 2643.265625

7552.1875 - 2643.265625 = 4908.921875

yr 5:

4908.921875 x .35 = 1718.12265625

4908.921875 - 1718.12265625 = 3190.79921875

6 0
3 years ago
Read 2 more answers
Other questions:
  • How lond did the famouse war of 100 years last ?
    5·1 answer
  • With a short time remaining in the​ day, a delivery driver has time to make deliveries at 7 locations among the 9 locations rema
    7·1 answer
  • Find vÌ, the orthogonal projection of v onto w. you can't enter vÌ as a variable name in matlab, so call it vbar instead. also c
    11·1 answer
  • Assume that y varies directly with x. If y = -15 when x = -5, find y when x = 3.
    5·1 answer
  • What's the answer to .91667÷5/18?
    8·2 answers
  • When Jeff played his new computer game for the first time, he scored 10,000 points. Each time he played, he increased his score
    9·1 answer
  • Solve the inequality.
    12·1 answer
  • Approximate, in feet, the circumference of a circle with radius = 6 ft. (Round your answer to one decimal place.)
    14·1 answer
  • Write an equation based on the table below
    11·1 answer
  • Plz help me with this assignment! I need help asap!
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!