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ella [17]
3 years ago
12

Evaluate (5 + 2)2 − 40 + 3 =

Mathematics
2 answers:
maxonik [38]3 years ago
7 0
(5+2)2-40+3

(7)2-40+3
= 14- 37
= -23
soldier1979 [14.2K]3 years ago
4 0
( 5 + 2 ) 2 - 40 + 3

( 7 ) ( 2 ) - 40 + 3

14 - 40 + 3

- 26 + 3

- 23.

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Which of the following subtraction problems has a difference of 197.367? Select TWO that apply.
Vlad1618 [11]

Answer: should be b and c

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8 0
3 years ago
12. Factor completely: 64x^3 + 729
Dafna1 [17]

Answer:

(4 x + 9) (16 x^2 - 36 x + 81)

Step-by-step explanation:

Factor the following:

64 x^3 + 729

64 x^3 + 729 = (4 x)^3 + 9^3:

(4 x)^3 + 9^3

Factor the sum of two cubes. (4 x)^3 + 9^3 = (4 x + 9) ((4 x)^2 - (4 x) 9 + 9^2):

(4 x + 9) ((4 x)^2 - 4 9 x + 9^2)

4×9 = 36:

(4 x + 9) ((4 x)^2 - 36 x + 9^2)

Multiply each exponent in 4 x by 2:

(4 x + 9) (4^2 x^2 - 36 x + 9^2)

4^2 = 16:

(4 x + 9) (16 x^2 - 36 x + 9^2)

9^2 = 81:

Answer: (4 x + 9) (16 x^2 - 36 x + 81)

5 0
4 years ago
Read 2 more answers
Find the number of sides of a regular polygon whose each interior angle is of 135 degrees
wolverine [178]

Answer:

8 sides

Step-by-step explanation:

exterior angle + interior angle = 180° , that is

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exterior angle = 45°

the sum of the exterior angles of a polygon = 360°

since the polygon is regular then number of sides n is

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5 0
2 years ago
What is the volume of a rectangular prism with a length of 8 1/2 cm, width of 9 1/3 cm and a height of 12 2/5 cm?
Alecsey [184]
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4 0
4 years ago
The measure of angle θ is 3pi/2 . The measure of its reference angle is /, and tan θ is .
Sphinxa [80]

Answer:

Reference angle: \frac{\pi}{2}

tan(\theta)=tan(\frac{3\pi}{2}) is not defined.

Step-by-step explanation:

The angle \theta goes from the positive x-axis to the negative y-axis.

Therefore the reference angle can be calculated as following:

\frac{3\pi}{2}-\pi=\frac{\pi}{2}

 We know that tan(\theta)is:

tan(\theta)=\frac{sin(\theta)}{cos(\theta)}

If \theta=\frac{3\pi}{2} then cos(\frac{3\pi}{2})=0, therefore tan(\frac{3\pi}{2}) is not defined, because the division by 0 is not defined.

8 0
3 years ago
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