MATHEMATICS HIGH SCHOOL

Simplify this expression.
(100 + 4z)20

Answers

Answer 1
Answer: the answer is 2000+80z
Answer 2
Answer: 2,080 this is what I got

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Find the product of (4x + 3y)(4x − 3y).16x2 − 24xy + 9y2
16x2 − 9y2
16x2 + 24xy + 9y2
16x2 + 9y2

Answers

Answer:

Option B is correct

16x^2-9y^2

Step-by-step explanation:

The distributive property says that:

a \cdot (b+c) = a\cdot b+ a\cdot c

To find the product of (4x + 3y)(4x − 3y).

Distribute the first term of the first expression to the second expression and second term of the first expression to the second expression we have;

4x(4x-3y)+3y(4x-3y)

Apply the distributive property;

16x^2-12xy+12xy-9y^2

Combine like terms we have;

16x^2-9y^2

therefore, the product of  (4x + 3y)(4x − 3y) is, 16x^2-9y^2

Answer:

Correct Answer: 16x^2 - 9y^2

Step-by-step explanation:

What is the answer to 2c-5=c+4

Answers

2c-9=c
-9=-c
9=c
Hope that helps!

Answer:

c=9

Step-by-step explanation:

first we need to balance the equation out we can do this by getting rid ofa c on both sides.

c-5=4

then we need to get rid of the 5. we do this by adding it.

c=9

A box is sitting on the floor. The box was then pulled with a force, Ft. The box did not move. The free-body diagram of the box is shown.A free body diagram with 4 force vectors. The first vector is pointing downward, labeled F Subscript g Baseline = negative 20 N. The second vector is pointing right, labeled F Subscript t Baseline = 10 N. The third vector is pointing upward, labeled F Subscript N Baseline = 20 N. The fourth vector is pointing left, labeled F Subscript f Baseline = negative 10 N. The up and down vectors are the same length. The right and left vectors are the same length.

Which describes the motion of the box based on the resulting free-body diagram?

It is moving up with a net force of 20 N.
It is moving to the right with a net force of 10 N.
It is in dynamic equilibrium with a net force of 0 N.
It is in static equilibrium with a net force of 0 N.
Mark this and return

Answers

Answer:

It is in static equilibrium with a net force of 0 N.

Step-by-step explanation:

EDGE21

I'm not sure if it is dynamic or static equilibrium but if I had to choose I'd say dynamic

Expand the following 4/5 (20x - 10)

Answers

Answer:

The required answer is 16x-8.

Step-by-step explanation:

Consider the provided expression 4/5 (20x - 10)

The above expression can be written as:

(4)/(5)(20x-10)

Now, use the distributive property:

Distributive property: a(b+c)=ab+ac

Use the above property

(4)/(5)* 20x-(4)/(5)* 10

4* 4x-4 * 2

16x-8

Hence, the required answer is 16x-8.
4/5 (20x - 10)...use distributive property...basically multiplying the 4/5 by everything in the parenthesis,

4/5 * 20x - 4/5 * 10 =
16x - 8

Solve the following equation: (y - 2) - (y + 1) = (y - 3) - 2

Answers

We can rewrite the equation without the brackets:
y - 2 - y - 1 = y - 3 - 2

Now let’s make both sides simpler:
-3 = y - 5

Let’s leave y on the right side and move 5 to the left:
-3 + 5 = y

So the result is:
y = 2

Answer:

y = 2

Step-by-step explanation:

Charlie solved an equation, as shown below:Step 1: 5x = 30

Step 2: x = 30 - 5

Step 3: x = 25

Is Charlie's solution correct or incorrect? If the solution is incorrect, explain why it is incorrect and show the correct steps to solve the equation.

Answers

Charlie is incorrect because he should have divided the 5. So it would x=30/5 =6. to check your work go 6x5 which equals 30.
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