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pentagon [3]
3 years ago
14

Which of the following represents the factorization of the binomial below?

Mathematics
1 answer:
Serggg [28]3 years ago
4 0

Answer:

D

Step-by-step explanation:

x² - 81 ← is a difference of squares and factors in general as

a² - b² = (a + b)(a - b)

Here a = x and b = 9, thus

x² - 81 = (x + 9)(x - 9) → D

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Last year mrs Bowen's read 289 books. Mrs Jackson's class read 315 book. About how many books did both classes read?
vaieri [72.5K]

Answer:

604

Step-by-step explanation:

add them together using collum method

6 0
3 years ago
What is the total surface area of a square pyramid with a base length of 10 meters and a slant height of 13 meters?
Harlamova29_29 [7]
130 please give Brian
3 0
2 years ago
Read 2 more answers
-3b+7=13 solve for b
sleet_krkn [62]

Answer:

b =-2

Step-by-step explanation:

-3b+7=13

Subtract 7 from each side

-3b+7-7=13-7

-3b = 6

Divide each side by -3

-3b/-3 = 6/-3

b = -2

8 0
3 years ago
Read 2 more answers
Which is the parent function of y=√5x+6
Ostrovityanka [42]
Hi there! The answer is D.

The parent function is the simplest form of a function. We can distinguish a variety of parent functions like linear, exponential, square root, absolute, logarithmic, quadratic, cubic, rational or constant (trigonometric functions excluded).

Now we can have a look at the function.
y =  \sqrt{5x  + 6}

The thing that is the most important in this function is the square root, because this mainly decides the way the function looks. Therefore, the parent function is the simplest form of a square root function, which is the following:
y =  \sqrt{x}

Therefore the answer is D.
~ Hope this helps you!
6 0
3 years ago
I need help with 4 and 5
krok68 [10]
4)
area of figure = bh = 8x10 = 80
same as a trapezoid have base 6 and 14 and height 8
because A of trapezoid = 1/2(6+14)*8 = 80
so answer is C
a trapezoid with bases of 6 mm and 14 mm and a height of 8 mm

5)
area of original figure A = bh = 8 x 10 = 80
if double h = 16 and b = 20 then A = 16 x 20 = 320
the area is quadrupled.

answer is C.
The area is quadrupled
3 0
3 years ago
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