Mathematics High School

Which expression is equivalent to (3x + 2)(2x – 8)?
(1) 6x 2– 16
(2) 6x 2– 26x – 16
(3) 6x 2– 20x – 16
(4) 6x – 16

Answers

Answer 1

Answer:

no.3

Step-by-step explanation:

(3x+2)(2x-8)

6x^2 - 24x + 4x - 16

6x^2 - 20x - 16

Answer 2

Answer:

(3) 6x^2 - 20x - 16.

Step-by-step explanation:

(3x + 2)(2x – 8)

= 3x*2x + 3x * -8 + 2*2x + 2*-8

= 6x^2 - 24x + 4x - 16

= 6x^2 - 20x - 16.

Related Questions

Write 4.5 as a mixed number and an improper fraction

Write your answer in simplest form

Answers

Answer:

9/2 and mixed number: 4 1/2

Step-by-step explanation:

Answer:

Mixed number: [tex]4\frac{1}{2}[/tex]Improper fraction: [tex]\frac{9}{2}[/tex]  

I hope this helps!

Given ∠A and ∠B are vertical angles with m∠A=10x+5 and m∠B=15x−10 .

What is x?

Enter your answer in the box.

Answers

10x + 5= 15x - 10

5= 5x - 10

15 = 5x
divide both sides by 5

x = 3

The measure of x is 1.

What are vertical angles?

Vertical angles are formed when two lines meet each other at a point. They are always equal to each other.

given:

m∠A=10x+5 and m∠B=15x−10 .

As, ∠A and ∠B are vertical angles

so,

m∠A=  m∠B

10x +5 = 15x -10

10x - 15x = -10 +5

-5x = -5

x= 1

Hence, the value of x is 1.

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1) Solve the equation 6= 1/4z -1 z=

Answers

Answer:

z=28

Step-by-step explanation:

first, add one to each side to eliminate the negative one. you'll get:

7= [tex]\frac{1}{4}[/tex]z

now, to get rid of the 1/4, multiply both sides by 4.

(7x4)=(1/4z)4

simplify to get 28=z.

hope this helps!

the correct answer is  z=28

Claire bought five toy boxes. Each toy box is in the shape of a cube. The total volume of the five toy boxes when placed in a row is 2,600 cubic inches. Claire thinks she will need about 40 inches of floor length for the toy boxes and Lucy thinks she will need about 45 inches of floor length for the toy boxes.

Answers

Answer:

Please find the answer in the explanation.

Step-by-step explanation:

Given that Each toy box is in the shape of a cube. The total volume of the five toy boxes when placed in a row is 2,600 cubic inches. 

If Claire thinks she will need about 40 inches of floor length for the toy boxes and Lucy thinks she will need about 45 inches of floor length for the toy boxes, one of them must be right.

Since Volume = L × B × h

Substitute the volume value and the length into the formula to know the area of the box. This must be in whole number and not in decimal number.

Area = 2600 / 40

Area = 65 square inches. For Claire.

Then for Lucy, we get:

Area = 2600 / 45

Area = 57.7778 square inches

We can therefore conclude that Claire is correct.

Factor by grouping
3x^2-11x+10

Answers

Answer: (x - 2)(3x - 5)

Step-by-step explanation:

I'm using the berry method to factor, so first, I multiply 3 times 10 to get 30. Now I have to figure out what two numbers, when multiplied together, yield 30 and when are added together, give me -11. Those two numbers are -6 and -5. The equation now becomes (3x -6)(3x -5). Reducing the first binomial: (3x - 6)/3 = (x - 2)

the solution is (x - 2)(3x - 5), and we can check this by multiplying it out, which gives us our starting number, meaning it's correct.

An angle measures 98° more than the measure of its supplementary angle. What is the measure of each angle?

Answers

Answer:

Step-by-step explanation:

Let the supplement = x

x + x +98 = 180                Equation

2x + 98 = 180                  Subtract 98    

2x = 180 - 98                   Combine

2x = 82                             Divide by 2

x = 82/2

x = 41

The two angles are

41

41 + 98 = 139

a professional organizer charged a $45 consultation fee, plus $20 per hour. write an equation to represent the total cost for hiring the organizer. define your variables.

Answers

Answer: y=20x+45

Step-by-step explanation:

y=total cost to hire the organizer

x=number of hours you are hiring the organizer


HELP ASAP!!! PlEASE

Answers

I believe that the answer is...

y = 0

Gina is hiking from the top of a mountain. In 24 minutes, she walks down the mountainside to a location 1,524 feet from the top of the mountain. If she walks at about the same pace, express ginas average Change in alititude per minute?

Answers

Answer: 63.5 alt/min

Step-by-step explanation: 1,524/24.

The change in altitude per minute is 63.5 alt/ min

What is unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given:

In 24 minutes = 1524 feet

So, the average Change in altitude per minute

=1524/24

= 63.5 alt/ min

hence, change in altitude per minute is 63.5 alt/ min.

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A store has 2 packs of paper for $3.52. How much would it cost if you were to buy 4 packs of paper

Answers

Answer:

7.04?

Just multiply 3.52 by two...

Which compound inequality can be represented by the graph below?
A. x 9
D. 5 < x ≤ 9

Answers

Answer:

[tex]5 > x \leq 9[/tex]

Step-by-step explanation:

It would be [tex]5 > x \leq 9[/tex]. The reason why, is because according to graph, there is a open circle (open circle signifies as [tex]<[/tex] or [tex]>[/tex], depending on what sign) on [tex]5[/tex], pointing to the right side of the number line and there is a closed circle (closed circle signifies as [tex]\leq[/tex] or [tex]\geq[/tex], depending on what sign) on [tex]9[/tex] pointing to the left side of the number line.

If x varies directly as y, find x when
y = 1 if x = 12 when y = 4.
A. 1
B. 3
C. 4
D. 9
HELPMEE

Answers

The answer is b .......

As an estimation we are told £3 is €4.
Convert £13.50 to euros

Answers

€18 is the answer
If you’ve been given an estimate, use that to determine how much £13.50 would be by cross multiplying
13.50 pounds is 14.87 euros

Jell was playing among us for 3 hours straight,the next day she played for 1 hour,in total she played for 4 hours,and each time she was impostor for 19 games so how long is each game for her to win each time


hint:19*4

Answers

Answer:76

Step-by-step explanation:

A hat contains 6 red marbles, 4 yellow marbles, 2 blue marbles, and 8 green marbles. One marble is drawn randomly. Find the probability the marble is red or yellow.

Answers

Answer:

Red=6

Yellow=4

Blue=2

Green=8

Total=20

Probability for Red = 6/20 = 3/10

Probability for Yellow = 4/20 = 1/5

0.0985 rounded to the nearest tenth

Need fast answersss!!

Answers

0.1 since 9 is greater than 5

Hope this helps!! <3

the jones family road trip covers 3640 miles and they visit 9 states. what is the average mileage per state?

Answers

Answer:

About 404.4444444445

Step-by-step explanation:

Answer:

404 miles per state

Step-by-step explanation:

First, let's write an equation.

For every 9 states, they covered 3640 miles. So our equation would look like this:

9s=3640 (s= number of states)

Second, let's get s by itself. To do this, divide 9 on both sides/

s=404.44444....

Which graph represents a linear function?
On a coordinate plane, a parabola opens down.
On a coordinate plane, a line has a negative slope.
On a coordinate plane, a line curves up.
On a coordinate plane, a line curves down, levels off, and then curves down.

Answers

Answer:

A,D

Step-by-step explanation:

just did it on edge2020

The linear function is

On a coordinate plane, a parabola opens down.On a coordinate plane, a line curves down, levels off, and then curves down.What is linear function?

A linear function is a function that represents a straight line on the coordinate plane.

As, linear function is a function whose graph is a straight line. Therefore, a nonlinear function has a graph which is not a straight line.

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What is y, m, and b?

Answers

m is 1/4

b is 2

As for Y I think its wants you to write out the problem so it would be Y=1/4x+2

PLZZZZZZZZ AWNSER!! I"LLL BY YOU CHOCOLATEEE!!!
8×7+7×2^2 +3

Answers

Answer:

87

Step-by-step explanation:

Where's my chocolate...

5 irrational number​

Answers

Answer: 5 is rational because it can be a fraction or ratio.

Answer:

√5 Unlike √9, you cannot simplify √5 .

Step-by-step explanation:

what is 2000 times 2

Answers

Answer:

The answer is 4,000

answer this asap please.​

Answers

Answer:

[tex](9-7*3+4)^{2}[/tex]

[tex](13-21)^{2}[/tex] (the first step)

Step-by-step explanation:

*multiply 7 by 3 and add 4 to 9*

find the slope of the line through each pair of points for questions 21 to 39​

Answers

Answer:

23,24,26,27 sorry if you get it wrong

2s – 3t = 4 solve for t

Answers

Answer:

the answer I got was s/2

Answer:

     2s - 4

t = ----------

         3

Step-by-step explanation:

Let's isolate t on the left side.  To do this, subtract 2s from both sides, obtaining

-3t = 4 - 2s

Now divide all three terms by -3, which results in:

     4 - 2s

t = ----------

        -3

or:

     2s - 4

t = ----------

         3

What is 1/2 2 1/3 multiplied in simplest form

Answers

Answer:

The answer is 7/6. Hope this helps.

what is an irrational number that is between 9.5 and 9.7 and why ​

Answers

Answer:

9.6666...

Step-by-step explanation:

9.6666... is an irrational number because it repeats itself and does not end.

9-9-9-9-9-9-9-9-9-8-8-8-8-8-7-7-7-77-7-7-7-7-6--35-3-5-34-5-4-5-34-35366386647832648638764872384687384326478364687326467823648723648723

Answers

I think that this would be a great question for a calculator. All you need to do is plug the numbers in, and the calculator will solve the problem for you {although that last number might be a bit long for the calculator:) }

Answer:

Your answer is -3.5366387e+67

Step-by-step explanation:

your welcome

Can someone explain to me how to do this I don’t know how to do it

Answers

Answer:

graph the function and for the points, look at the x values and then you'll find their y values  in the function u graphed.

Step-by-step explanation:

Or plug in the values for x. (ONE AT A TIME!) and solve it that way.

Hope this helps.

solve
e - 13 = 31
WILL GIVE BRAINLIEST

Answers

Answer:

44

Step-by-step explanation:

Step 1:

e - 13 = 31      Equation

Step 2:

e = 31 + 13     Add 13 on both sides

Answer:

e = 44      Add

Hope This Helps :)

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