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
mash [69]
3 years ago
8

A²-b²evaluation if a=4 and b=-2​

Mathematics
2 answers:
yawa3891 [41]3 years ago
6 0

Answer:

12

Step-by-step explanation:

(4)^2-(-2)^2

16-4=12

Marta_Voda [28]3 years ago
4 0
The Answer is 20

Explanation
If a is 4 then 4 to the power of 2 would be 16. If b is -2 and it is applied to the power of 2. Then it would be -4. But since there is another minus sign behind the B, you would make the sign a addition sign. So it would basically be 16 plus 4, which is 20
You might be interested in
What is 78% of 30?
RSB [31]

Answer:

78% of 30 is 23.4

5 0
3 years ago
Read 2 more answers
Which of the graphs below represents the equation 8x - y = -4?
vichka [17]
Well since you dont have the graphs posted i can tell u the y-intercept and the slope and you can figure it out from there.

8x-y=-4
-y=-8x-4
y=8x+4
the y intercept is 4 and the slope is positive 8
4 0
3 years ago
Read 2 more answers
PLS HELP ASAP PLZ PLZ PLZ
KIM [24]
I am unsure about the very last problem but I can help with the first two

1) (y+1)+4

If we combine the numbers 1 and 4, we get +5 and can isolate the numbers from the variable.

This would give us

y + 5 =

2) (6*r)*7

remember that we do not have to explicitly state 6*r

Instead, we can write it as 6r

this helps us get rid of the parentheses

now we can write it as 6r * 7=

I hope this helps!:)

6 0
3 years ago
-10(-5c+4c+7)-3c in simplest form
Snowcat [4.5K]
10(-1c+7)-3c
(-10c+70)-3c
-13c+70 is your answer
4 0
2 years ago
Read 2 more answers
The hypotenuse of a right triangle is 3cm and one of the legs is 1cm. What is the length of the other leg?
Zolol [24]

Check the picture below.

4 0
3 years ago
Other questions:
  • Solve the quadratic equation using the square root property
    13·1 answer
  • Find the distance between the pair of points given on the graph.
    11·2 answers
  • Rachel mows 5 lawns in 8 hours this rate how many lawns can she mow in 40 hours
    13·1 answer
  • 1. You buy 3 pounds of organic apples for $7.50. The graph shows the price of regular apples.
    13·2 answers
  • If a pack of ramen noodles cost $3.48 what is the unit rate (in cents)?
    12·1 answer
  • Write the ratio $150 : $450 : $750 in its simplest form.
    5·2 answers
  • In the image, shape is similar to shape . Find the measure of side .
    12·1 answer
  • Please help me and explain. I don't understand.
    12·2 answers
  • What is the sum of the rational expression below? x-4/2x+3x/2x-1
    13·2 answers
  • Please answer question #2 and please show work
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!