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Brrunno [24]
2 years ago
6

7. Evaluate the expression for x= -2. 4x^3 – 3x^2 + 2

Mathematics
1 answer:
Mice21 [21]2 years ago
6 0

Answer:

the answer for your question is -42

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Alan made a small four sided table for his office .Two sides of the table are 27 inches long and 36 inches long .If the diagonal
Tcecarenko [31]

Answer:

does NOT have right angles at the corners

Step-by-step explanation:

we are given that the sides of a table are 27" and 36" long.

If we assume the table to be rectangular, then by Pythagorean formula, we can find the diagonal and compare it to the 40" that we are given.

(refer to attached)

diagonal² = 27² + 36²

diagonal² = 27² + 36²

diagonal² = 2025

diagonal = √2025

diagonal = 45 inches

because the diagonal that we found is not the same as the 40" that was given, we can conclude that the table is not a rectangle (i.e does not have right angles at the corners)

6 0
2 years ago
PLEASE HELP QUICK!!
egoroff_w [7]

Answer:

B. (4x+5)(16x2−20x+25)

Step-by-step explanation:

64x3+125

=(4x+5)(16x2−20x+25)

7 0
2 years ago
Which equation is equivalent to 63-3(2-10x)=150
kogti [31]

Answer:

D: 57 + 30x = 150

Step-by-step explanation:

63-3(2-10x)=150

63 - 6 + 30x = 150

57 + 30x = 150

4 0
2 years ago
Read 2 more answers
Which expression is equivalent to (-3y - x) - (5y - 8x)?
Vinil7 [7]

Answer:

b

Step-by-step explanation:

plz mark brainliest

4 0
3 years ago
The ratio of the numerator and denominator of a rational number is 2 : 7 and
Nadya [2.5K]

Answer:

6/21.

Step-by-step explanation:

let the rational number be 2x/7x.

2x + 4 / 7x - 2 = 10 /19

Cross multiply:

19(2x + 4) = 10(7x - 2)

38x + 76 = 70x - 20

96 = 70x - 38x

32x = 96

x = 3.

So the rational number is  2*3/ 7*3

= 6/21.

4 0
3 years ago
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