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
10
wlad13 [49]
Not sure but could be C
3 0
3 years ago
Find the surface area of the composite solid.
ki77a [65]
The best answer would be D
6 0
3 years ago
Three times the sum of a number and 21 is at most -26
Anna007 [38]
It would be: 3(x + 21) ≤ -26
3x + 21 ≤ -26
3x ≤ -47
x < -47/3

In short, Your Answer would be -47/3 or 15.67

Hope this helps!

8 0
3 years ago
A right triangle has legs with lengths 20 cm and 21 cm.
Bond [772]

to find the hypotenuse length you need to use the pythegorian therum and that will give you 29cm


7 0
3 years ago
Read 2 more answers
A paper clip is dropped from the top of a 144‐ft tower, with an initial velocity of 16 ft/sec. Its position function is s(t) = −
hoa [83]
To calculate the velocity, we use the given expression above which is <span>s(t) = −16t^2 + 144. First, we calculate the time it takes to reach the ground. Then, differentiate the expression and substitute time to the differentiated expression.

</span>s(t) = −16t^2 + 144
0 = -16t^2 + 144
t = 3

s'(t) = v = -32t
v = -32(3)
v = -96 

Note: negative sign signifies that the object is going down
5 0
2 years ago
Read 2 more answers
Other questions:
  • What’s the surface area of this cylinder radius 8 height 16
    5·2 answers
  • Let f(x) be a quadratic polynomial such that f(-4) = -22, f(-1)=2, and f(2)=-1. Let g(x)=f(x)^16. Find the sum of the coefficien
    14·1 answer
  • For what values of x and y must each figure be a parallelogram?
    15·2 answers
  • Solve for x. Please have explanantion
    7·1 answer
  • Two integers a and b have different signs. The absolute value of integer a is divisible by the absolute value of integer b. Find
    14·1 answer
  • What is the inerquartile range of 29, 30, 28, 32, 28, 31, 27
    5·1 answer
  • THIS IS WORTH 11 POINTS For the function y = f(x), what is the ordered pair for the point on the graph when x = 2m + 3? (3 point
    11·1 answer
  • If a pizza pie had<br> a diameter of 12<br> inches, what<br> would be its<br> circumference?
    11·2 answers
  • PLZ HELP FAST PLZZZXXXXXX
    9·1 answer
  • X^2-6x+13 step by step to vertex form
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!