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kompoz [17]
3 years ago
5

Multiply the following polynomials A. (2x+1)(3x-2) B. (x+5)(x-5) C. (4x-3)(x^2+3x+2)

Mathematics
2 answers:
Papessa [141]3 years ago
6 0

Answer:

A. 6x^{2} - x-2

B. x^{2}  - 25

C. 4x^{3} + 9x^{2} -x-6

Nitella [24]3 years ago
5 0

Answer:

A. 6x^2-x-2 B. x^2-25 C. 4x^3+9x^2-x-6

Step-by-step explanation:

It would be greatly appreciated if you gave me brainlest.

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If 40% of a number is 56. What was the original Number
pentagon [3]
56 divided by 40 is 1.4. Multiply that by 100 and you get 140.

This is the long way of doing it, but it's the way I've always done it.
7 0
3 years ago
Find f(a + 1).<br> f(x) = x2 + 3
Andreas93 [3]

Answer:

Step-by-step explanation:

f(x) = x²+3

f(a+1) = (a+1)²+3 = a²+2a+4

3 0
3 years ago
A construction company can remove 3/3/4 metric tons of dirt from a construction site in 1/1/8 hours what is the unit rate in met
kotykmax [81]

Answer:

3 1/3 metric tons per hour

Step-by-step explanation:

To find the unit rate, divide 3 3/4 metric tons by 1 1/8 hours (notice that the correct format is 3 3/4, not 3/3/4).

 3 3/4 metric tons       3.75 metric tons

---------------------------- = --------------------------

        1 1/8 hours                1.125 hours

It's easier to deal with decimal fractions here than with proper fractions.

The unit rate then comes out to be 3.75/1.125 metric tons per hour, or

3.33333 metric tons per hour, or   3 1/3 metric tons per hour

5 0
3 years ago
What is the converse of the following conditional statement?
Andre45 [30]

Answer: D

Step-by-step explanation: they Match because same length=congruent

5 0
3 years ago
See attachment for question (I will report you if you are only doing it for the points)
vovikov84 [41]

Answer:

x => y

-6 => 9

3 => 5

15 => -3

-12 => 15

Step-by-step explanation:

Given the domain function, {-12, -6, 3, 15}, and the equation of the function, y = -\frac{2}{3}x + 7, we can complete the given table by simply plugging in the value of either x to find y, or y to find x in the table given. The domain values are all x-values you have in the table.

Find y when x = -6:

y = -\frac{2}{3}(-6) + 7

y = -\frac{2}{1}(-2) + 7

y = 2 + 7

y = 9

Find x when y = 5:

5 = -\frac{2}{3}x + 7

5 - 7 = -\frac{2}{3}x + 7 - 7

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

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

-2*3 = \frac{-2x}{3}*3

-6 = -2x

\frac{-6}{-2} = \frac{-2x}{-2}

3 = x

x = 3

Find y when x = 15:

y = -\frac{2}{3}(15) + 7

y = -\frac{2}{1}(5) + 7

y = -10 + 7

y = -3

Find x when y = 15:

15 = -\frac{2}{3}x + 7

15 - 7 = -\frac{2}{3}x + 7 - 7

8 = -\frac{2}{3}x

8 = \frac{-2x}{3}

8*3 = \frac{-2x}{3}*3

24 = -2x

\frac{24}{-2} = \frac{-2x}{-2}

-12 = x

x = -12

7 0
3 years ago
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