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Kay [80]
3 years ago
5

Help Help!!I attached a photo. What do I put the place where I put a question mark.

Mathematics
1 answer:
AlekseyPX3 years ago
3 0
2x+y=6 for the question mark.


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Write 7*7*b*b*b in exponential form
ycow [4]

Answer:

  7²b³

Step-by-step explanation:

An exponent signifies repeated multiplication. Here, the factor 7 is repeated twice, and the factor b is repeated 3 times. These will get exponents of 2 and 3, respectively:

  7²b³

6 0
3 years ago
The length of a rectangle is 6 inches more than its width. Its area is 91 square inches. The length is .
Vika [28.1K]

Answer:

13 in

Step-by-step explanation:

let w be width then length is w + 6

the area (A) of a rectangle is calculated as

A = length × width , then

A = w(w + 6) = 91 , that is

w² + 6w = 91 ( subtract 91 from both sides )

w² + 6w - 91 = 0 ← in standard quadratic form

(w + 13)(w - 7) = 0 ← in factored form

equate each factor to zero and solve for w

w + 13 = 0 ⇒ w = - 13

w - 7 = 0 ⇒ w = 7

however, w > 0 then w = 7

and length = w + 6 = 7 + 6 = 13 in

8 0
2 years ago
Solve the following system of equations algebraically:<br> y = 3x2 – 12x + 16<br> y = -x + 6
FrozenT [24]

Answer:

x=2

y=4

Step-by-step explanation:

Explanation is in picture

8 0
3 years ago
Solve the following equation algebraically<br>4x^2 = 100​
Licemer1 [7]

Answer:

x  = ±5

Step-by-step explanation:

4x^2 = 100​

Divide each side by 4

4/4x^2 = 100/4

x^2 = 25

Take the square root of each side

​sqrt(x^2) = ±sqrt(25)

x  = ±5

7 0
2 years ago
Brooke and Lamont ran a half marathon. Brooke finished in 1 hour 55
harkovskaia [24]

Answer:

D

Step-by-step explanation:

1:55 is lower that 125 minutes

7 0
3 years ago
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