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olya-2409 [2.1K]
3 years ago
13

Given a≠±b and a^2−b^2 / a+b =12, find a−b. ;pls help;;

Mathematics
2 answers:
otez555 [7]3 years ago
8 0

Answer:

12

Step-by-step explanation:

a^2 - b^2 / a + b = 12

a^2/a = a

b^2/b = b

a - b = 12

The answer is 12.

Nina [5.8K]3 years ago
4 0

Answer:

12

Step-by-step explanation:

(a² - b²)/(a + b) = 12

(a - b)(a + b)/(a + b) = 12

a - b = 12

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Find the shorter base of a trapezoid if the trapezoid's area is 52, its altitude is 8, and its longer basis 10.
DiKsa [7]

Answer:

The shorter base is 3

Step-by-step explanation:

a =  \frac{(b1 + b2)}{2}  \times h

52 =  \frac{(10 + b2)}{2}  \times 8

b2 = 3

8 0
2 years ago
The length of a rectangle is 8feet less than the width. The perimeter is 64 feet. Find the length and the width
nataly862011 [7]

Answer:

Length = 4 feet

Width = 4 feet

Step-by-step explanation:

The perimeter of a rectangle formula = 2L + 2W

Where L = Length

W = Width

The length of a rectangle is 8feet less than the width.

Hence,

L = 8 - W

The perimeter is 64 feet.

Hence,

64 = 2(8 - W) × 2W

64 =( 16 - 2W )2W

64 = -4W² + 32W

4W² - 32W + 64 = 0

Factorise

4W² - 16W - 16W + 64 = 0

4W (W - 4) - 16(W - 4) = 0

W - 4 = 0

W = 4

Width = 4

Solving for L

L = 8 - W

L = 8 - 4

L = 4

Therefore,

Length = 4 feet

Width = 4 feet

7 0
3 years ago
Help please! Its worth 25.. no links or files
NeX [460]

Answer:

C

Step-by-step explanation:

4*5=20 include c, and 4*-2=-8 include d

6 0
1 year ago
-9 + 3x = 9 Please Answer Correctly
muminat

Answer:

x=6

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
If h(x)=6-x,which is the value of (h*h)(10)
Andrews [41]

Answer:

16

* usually means multiplication

If you have an open circle there instead, please inform me.

Step-by-step explanation:

* usually means multiplication

If you had an open circle there, please let me know.

Find h(10) and then multiply that answer to itself.

h(10)=6-10=-4

So the answer is -4*-4=16

7 0
2 years ago
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