What is the factorization of 49b2 − 81?

Mathematics

1 answer:

Leto [7]3 years ago

6 0

(7b-9)(7b+9)

explanation:
I learned in math last year

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What is the area of the parallelogram?

Inessa [10]

Answer:

70 cm²

Step-by-step explanation:

The area of the parallelogram is:

14 × 5

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4 0

3 years ago

The gradient of the curve

AleksAgata [21]

Answer:

Coordinate of P is (-2, -3)

Step-by-step explanation:

Gradient is the derivative of the curve:

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but dy/dx is -1 :

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substitute for x :

$y = 3( - 2) {}^{2} + 11( - 2) + 7 \\ y = - 3$

3 0

3 years ago

Keith is trying to figure out the area of his pool section in his backyard he knows that his pool is 20 feet long and 9 feet wid

Nata [24]

Answer:

The total area of the pool section of Keith's backyard is 390 square feet.

Step-by-step explanation:

Since Keith is trying to figure out the area of his pool section in his backyard, and he knows that his pool is 20 feet long and 9 feet wide, and he also knows the sidewalk is 3 feet wide all around the floor, to determine what is the total area of the pool section of Keith's backyard, the following calculation must be performed:

(20 + 3 + 3) x (9 + 3 + 3) = X

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Therefore, the total area of the pool section of Keith's backyard is 390 square feet.

3 0

4 years ago

Free points to y'all. 1+1+1*0

DiKsa [7]

I think it’s probably 12

7 0

4 years ago

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