All categories

3 years ago

Multiple the following:

Mathematics

2 answers:

fredd [130]3 years ago

8 0

Answer:

1.-9x^2

2.16x^4

3.x^2+4x

4.x^2+4x+4

5.x^2-x-12

6.x^4+2x^3-4x^2

Step-by-step explanation:

Pepsi [2]3 years ago

8 0

1) (-3x)(3x)

= -9x^2

2) (4x)^2 = 4^2 x^2

= 16x^2

3) x(x+4) = x•x+4x

= x^2+4x

4) (x+2)^2 = x^2+2x•2+2^2

= x^2+4x+4

5) (x+3)(x-4) = x^2-4x+3x-12

= x^2-x-12

6) x^2(x^2+2x-4) = x^2•x^2•x^2•2x-4x^2

= x^4+2x^3-4x^2

You might be interested in

Peyton is building a model tower using plastic bricks. The height of the tower is proportional to how many layers of bricks he u

Alex777 [14]

75 layers

15 layers/24 cm = x layers/120cm
(120*15)/24 = x
75 layers = x

3 0

2 years ago

The human resource department at a certain company wants to conduct a survey regarding worker benefits. The department has an al

Mama L [17]

Answer:

Explained below.

Step-by-step explanation:

The human resource department at a certain company wants to conduct a survey regarding worker morale. The department has an alphabetical list of all 4,502 employees at the company and wants to conduct a systematic sample of size 50.

Systematic sampling is a kind of probability sampling method in which individuals from a larger population are nominated according to a random initial point and a static, periodic interval.

(a)

A sample of size 50.

Then the value of k will be: $k=\frac{4502}{50}=90.04\approx 50$

Thus, the value of k is 90.

(b)

Label the employees from 1 to 4502.

And select every 90th employee.

So, the individuals who will be administered the survey are:

90th, 180th, 270th,...

7 0

3 years ago

Solve the equation 3x-4=8-x

solmaris [256]

Answer:

x=3

Step-by-step explanation:

3x-4=8-x(Group like terms)

3x+x=8+4(Add both sides)

4x=12(After adding you will proceed to divide both sides by 4)

x=3(x is 3 because 4 can divide 12 3 times that's why we have x as equal to 3)

5 0

3 years ago

Plzzzzz hellllp meeeee plz

iren [92.7K]

Answer:

(7, 5)

Step-by-step explanation:

When reflecting over the x-axis, the only position that moves is the y-coordinate as it is going above the axis it was previously below. Since point F's original position was (7, -5) it is 5 spaces away from the x-axis. We move 5 places up to be even with the x-axis, then move up another 5 places to reflect the point to get F'.

Hope this Helps!

5 0

3 years ago

Read 2 more answers

Convert 3.35 into a percent. Type in your number answer only. Ex

konstantin123 [22]

3.35 *100 =335%
Hope it’s help

7 0

3 years ago