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ioda
3 years ago
15

(2+x)(2−x)?? helppppppp

Mathematics
2 answers:
shusha [124]3 years ago
3 0
You can find one the picture I send




il63 [147K]3 years ago
3 0

Answer:

-x^2+4

Step-by-step explanation:

2*2=4

2*-x=-2x

x*2=2x

x*-x=-x^2

-x^2+2x-2x+4=-x^2+4

          \   /

      These two

      cancel out

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Theresa mix 3 quarts of yellow paint for every two quarts of blue paint to make the color green if she decides to use 7 quarts o
UNO [17]

Answer:

She will need 10.5 quarts

Step-by-step explanation:

ratio of yellow to blue paint = 3:2

7 ÷ 2 = 3.5

3 x 3.5 = 10.5 quarts

3 0
3 years ago
The three sides of a triangle are n, 3n+3, and 2n+11. If the perimeter of the triangle is 50 inches, what is the length of each
mylen [45]

Answer:

6, 21, and 23 inches

Step-by-step explanation:

The perimeter of a triangle is equal to the sum of all side lengths in that triangle. We're given the perimeter as 50 inches, and the side lengths as n, 3n + 3, and 2n + 11.

  • This means that we can algebraically solve the equation n + 3n + 3 + 2n + 11 = 50

Step 1: Combine like terms.

  • (n+3n+2n) + (3+11) = 50
  • 6n + 14 = 50

Step 2: Subtract 14 from both sides.

  • 6n + 14 - 14 = 50 - 14
  • 6n = 36

Step 3: Divide both sides by 6.

  • 6n/6 = 36/6
  • n = 6

Step 4: Plug in the value of n as 6 in each side.

  • (6) + (3(6) + 3) + (2(6)+11) = 50
  • (6) + (18+3) + (12+11) = 50
  • (6) + (21) + (23) = 50  

Therefore, the side lengths are 6, 21, and 23 inches.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

6 0
2 years ago
Please help .-.<br> No absurd answers
VARVARA [1.3K]

Answer:

64 ft²

Step-by-step explanation:

10 ft · 10 ft

100 ft²

A=\frac{bh}{2}

6 · 6 = 36

36 ÷ 2 = 18

18 ft² + 18 ft² = 36 ft²

100 ft² - 36 ft²

64 ft²

8 0
3 years ago
Read 2 more answers
Find the length of the third side. If necessary, write in simplest radical form
mrs_skeptik [129]

Answer:the answer is 4 to the square root of 2

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
How do i do this i dont know were to begin
loris [4]
Multiply everything by 4 so you get rid of the fraction
6 0
3 years ago
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