Mathematics College

Select the correct product.



(x2 + 4x + 8)(2x - 1)

x2 + 8 x - 8
x2 + 6 x + 7
2 x3 - 7 x2 - 12 x - 8
2 x3 + 7 x2 + 12 x - 8

Answers

Answer 1

Answer:

2 x^3 + 7 x^2 + 12 x - 8

Step-by-step explanation:

To find the product you just had to simplify the expression.

Answer 2

Answer:Answer:

2 x^3 + 7 x^2 + 12 x - 8

Step-by-step explanation:

To find the product you just had to simplify the expression.

Related Questions

last problem had the wrong photo so heres the right one

Answers

Answer:

J

Step-by-step explanation:

1. y = mx + c ( equation of a straight line,where "c" is the y intercept, i.e, the y co-oridnate of where it cuts the y-axis)

2. It is now clear to see that the value of "c", the y co-ordinate of the point of intercept is 3, eliminating F and G as options

3. Substitute a given point into the equation y = mx + 3 to solve for "m", the gradient. I chose (3; 1) as it is the only visible point that lies on the straight line

4. Solve for "m" algebraically and you'll find that the gradient is -2/3

5. Substitute "m" back into the equation and you'll find that your equation is y = -2/3x + 3 or J

ALTERNATIVELY:

You could just find the value of "c" as stipulated above, which would leave you with H and J as options. But since you know the coefficient of x in the equation is the gradient, you can just tell by looking at the line whether or not it will have a positive or negative gradient. The gradient is negative since the line is sloping downwards, so you're only option is J.


A water container was 1/4 full. Two litres of water was added. The container was then 1/3 full. How much did the container hold?

Answers

Answer:

Bárbara come la tercera parte de una caja de bombones. Su papá luego compra 7 bombones más y los pone en la caja. ¿Cómo se representa la cantidad de bombones que hay ahora en la caja?

Step-by-step explanation:

Discount, markup, and commission word problems
You might need: Calculator
A store has a 40% off sale on headphones. With this discount, the price of one pair of headphones is $36.
What is the original price of the pair of headphones?
$
Show Calculator
Stuck? Watch a video or use a hint.
Report a problem

Answers

Answer:

90$

Step-by-step explanation:

X(40%) = 36$

X(40/100) =36

40X = 3600

X = 90$

(recheck: 90$ x 40%= 36$)

Find the solution set of the inequality 3x+5≤-13

Answers

3x < -13 - 5
3x < -18
x < -6

Answer:

has to be under / or -13 so ...

x = -6

3(-6) + 5 =

-21 + 5 = -13

give to reasons why do you think Sin/excise tax is so high​

Answers

Sin taxes are typically added to liquor, cigarettes, and goods that are considered morally hazardous. Because they generate enormous revenue, state governments favor sin taxes. ... The sin tax seeks to reduce or eliminate consumption of harmful products by making them more expensive to obtain.

The lines graphed below are parallel.The slope of the red line is-4/3. What is the slope of the green line?​

Answers

Answer:

-4/3

Step-by-step explanation:

You know that parallel lines have the same slope. So, if both lines are parallel, then they must have the same slope.

Answer:

-4/3

Step-by-step explanation:

A line thats parallel with a line with a slope -4/3 will have the same slope because it is parallel so it has the same the degree of tilt/slope

Austin Use the distributive property to overwrite 18 + 54 which expression could the student use​

Answers

Answer:

18( 1 x 3 )

Step-by-step explanation:

find the greates common factor of 18 and 54

18

hope this helps

what are the factors of ×^2+4×+3​

Answers

Answer:

(x+3)(x+1)

Step-by-step explanation:

I'm assuming you need to factorise?

Answer:

(x+1)(x+3)

if u want me to explain how it works let me know

I need help please help

Answers

Answer:

first one

28.26 im not 100% correct i dont think

it’s the first one.
i think it’s the first one

Bob has 4,000 grams of sand. If his brother has one kilogram more than Bob, how many kilograms of sand does Bob's brother have?

Answers

Answer:

5 kg

Step-by-step explanation:

1 kg = 1000 g

4 kg = 4000 g

? kg = 5000 g

Group B & C
Show all work
If Stephen ate 3/4 of the 20 chips below, how many chips did he eat in all?

Answers

20/4 = 5
5 • 3/4 = 15
Stephen ate 15 chips in total

help please and thanks

Answers

Answer:

I'm pretty sure the answer is 21/20 or 1.05

Can somebody pls help me on this one?

Answers

Here's link to the answer:

tinyurl.com/wpazsebu

I GIVE BRAINLIEST FOR EXPLANATION AND CORRECT ANSWER EXTRA POINTS

Answers

Answer:40 inch
Explanation: the radius is half of the circumference therefore the answer is 40 inches considering the radius is 20 inches.

victor has 8/12 of a tank of gasoline left in his car. which fraction is greater than 8/12?

Answers

Answer:

5/6

Step-by-step explanation:

I'm looking for the diagram related to question 5 ....pls if you can solve it correctly ,I will reward you as a brainlist ❤️​

Answers

Answer:

a. A capital letter that have corresponding angles is the letter 'E'

b. A capital letter that have alternate angles is the letter 'N'

Step-by-step explanation:

The capital letter 'F' is made two horizontal parallel lines that touch a common transversal. Therefore, in the letter F, the two horizontal parallel lines form corresponding angles with the transversal below each parallel line

Similarly, the letter Z form alternate angles below the horizontal parallel lines and the inclined diagonal

a. Another capital letter that have corresponding angles is the letter 'E'

b. Another capital letter that have alternate angles is the letter 'N'

Answer:

A

Step-by-step explanation:

the answer is a

There were 20 boys and 26 girls in a chess club last year. This year the number of boys increased by 30% but the number of girls decreased by 15%. Was there an increase or
decrease in overall membership?

Answers

Step-by-step explanation:

Boys

[tex]20 + (20 \div 100)30 = \\ = 20 + 0.2 \times 30 = \\ = 20 + 6 = \\26[/tex]

Girls

[tex]26 - (26 \div 100)15 = \\ = 26 - 0.26 \times 15 = \\ = 26 - 3.9 = \\ = 22[/tex]

Total last year 46

Total this year 48

Increase

The ratio of the vertical change to the horizontal change to any two points on a line is called _______ of the line

Answers

Answer:

The ratio of the vertical change to the horizontal change to any two points on a line is called ___slope___ of the line

Step-by-step explanation:

Slope will be your answer, hope this helps!

PLEASE I NEED HELP CLICK ON THIS IMAGE

Answers

Answer:

24 miles per hour

Step-by-step explanation:

144/6

= 24

Its 24 miles per hour

= 144 / 6
= 24

I know someone answered this already, i just want points

help meh I keep doing bad :/​

Answers

Answer:

5,009.206

Explanation:

Select all the expressions that are equivalent to - 2/5 (15-20d + 5c).
-6 + 8d - 2c
-2c + 8d - 6
-2(3 - 4d + c)
-30 + 40d - 100
O 6-8d + 20

Answers

One of them is -6+8d-2c

At an ice cream shop, a person can choose from 3 different
sizes of cones, 5 different flavors, and 5 different toppings. If
you want to buy an ice cream in a cone with a topping,
How many different options are there when you are buying
ice cream?
______ options

Answers

Answer:

13

Step-by-step explanation:

3 + 5 + 5 = 13

that is the answer

What is the coefficient of y in the expression x+4y+3

Answers

4 since there is nothing to simply

Whoever helps me will save my life

Answers

This makes no sence ppl just say the answers or whatever it is

What is the mean of the data set?

Enter your answer as a decimal in the box. Round to the nearest tenth.

mean =

Answers

Answer:

2.4

Step-by-step explanation:

1.5+1.5+2+2+2+2.5+3+3.5+4=22

22/9=2.4

Answer:

2.4 I think and hello have a great day

2:14 = 1:
What is the equivalent ratio?

Answers

The answer would be 1:7
1:7 is the answer

Hope it helped:)

Can y’all help me on question 27?!

Answers

Answer:

B and D

Step-by-step explanation:

A would be:

57 + 2j

C would be:

13-t

What is the value of xwhen ik o h)(r)
-1?
OA.
2
OB.
-3
O C. 1
OD.
4
I NEED HELP ASAP

Answers

Answer:

4

Step-by-step explanation:

A rectangle with an area of 61 units” is dilated by a scale factor of ;. Find the area of
the rectangle after dilation. Round your answer to the nearest lenth, if necessary.

Answers

Answer:

34 units

Step-by-step explanation:

I decided that one side is 61 units and the other is 1 unit, since that would make the area 61 units.

Then I multiplied 61 by 3/4, which equals a new length of 45.75 units, and I also multiplied 1 by 3/4, which equals a new length of 0.75 units.

Finally, I solve for the area of the rectangle:

45.75 x 0.75 ≈ 34 units (rounded to the nearest whole number)


After sales tax, a $96 watch costs
$101.28. What is the sales tax
percentage?

A:6.2%
B:5.5%
C:5.2%
D:8.5%

Answers

101.28-96 = 5.28
5.28/96 = 0.055
0.055 x 100% = 5.5%
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