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3 years ago

Evaluate (mn)(x) for x = - 3. (mn)(-3) =

Mathematics

2 answers:

aleksandrvk [35]3 years ago

8 0

Answer:

Step-by-step explanation:

(mn)(x)=mn(-3)= -3mn

liubo4ka [24]3 years ago

6 0

Answer:

-3mn

Step-by-step explanation:

It seems you might be missing some of the question, as you haven't given what m and n are equal to.

If the question has just given you x, then you would simply just simplify it to get -3mn.

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Find (fof)(3) f(x) = x^2 - x A. 30 B. 6 C. 33 D. -6

EastWind [94]

Sub x=3 into ((x^2)-x)^2 - (x^2 - x) = 30. So the answer is A.

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3 years ago

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Jessica has 3 cards in a bag, each marked with a letter. The letters are X, Y, and Z. Without

ahrayia [7]

Answer:

1/27

Step-by-step explanation:

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3 years ago

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On a parallelogram, the vector from one vertex to another vertex is (9,-2). What is the length of the side?

sertanlavr [38]

Answer: Second Option is correct.

Step-by-step explanation:

Since we have given that

In a parallelogram, the vector from one vertex to another vertex is (9,-2)

So, the co-ordinate of first vertex will be (9,0).

And the coordinate of second vertex will be (0,-2).

As we know the formula for "Distance between two coordinates":

So, The length of the side is given by

$Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\Distance=\sqrt{(9-0)^2+(0-(-2))^2}\\\\Distance=\sqrt{9^2+2^2}\\\\Distance=\sqrt{81+4}\\\\Distance=\sqrt{85}$

Hence, Second Option is correct.

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3 years ago

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Chris earns $10.00 each time he washes his neighbor’s car. The expression 10x represents Chris' earnings. What does the variable

Sholpan [36]

The variable represents the number of times Chris washes the car.

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3 years ago

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Find each function value.

Levart [38]

Put the values of x to the equations of the functions:

1. f(9) → x = 9; f(x) = -3x + 10

f(9) = -3(9) + 10 = -27 + 10 = -17

2. f(-2) → x = -2; f(x) = 4x - 1

f(-2) = 4(-2) - 1 = -8 - 1 = -9

3. f(-5) → x = -5; f(x) = -2x + 8

f(-5) = -2(-5) + 8 = 10 + 8 = 18

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3 years ago