Mathematics Middle School

pls help me lol
(2x2 - 5)(3x2 + 4)

a
6x^4 + 7x^2 - 20
b
6^x4 + 23x^2 - 20
c
6x^4 - 7x^2 - 20
d
6x^4 - 23x^2 - 20

Answers

Answer 1

Answer:

C.

[tex](2 {x}^{2} - 5)(3 {x}^{2} + 4) \\ = (6 {x}^{4} + 8 {x}^{2} - 15 {x}^{2} - 20) \\ = (6 {x}^{4} - 7 {x}^{2} - 20)[/tex]

Answer 2

Answer:

Answer is C!!!!!

Step-by-step explanation:

Related Questions

The probability of getting broccoli and fish for dinner is:
A) 0.5
B) 0.7
C) 0.16
D) 1

Answers

a- 0.7- reason- 5+3= 8 - 1 =7

Answer:

8% i think

Step-by-step explanation:

Please help with the math question!!! 2

Answers

Answer:

number 1 is 12

number 2 is 18

number 3 is 30

Answer:

Die = 6 possible outcomes

Coin= 2 possible outcomes (per) coin

spinner= 3 possible outcomes

A present is shaped like a
rectangular prism wit square ends.
You want to wrap it for your friend's
birthday. You have 150 ft of
wrapping paper and the present has
a volume of 96 ftº. Do you have
enough wrapping paper to wrap your
friend's present? Hint: start with the
volume.
6 ft

Answers

Answer: Yes

Step-by-step explanation:

The probability of getting broccoli and fish for dinner is:
A) 0.5
B) 0.7
C) 0.16
D) 1

Answers

Answer:D

Step-by-step explanation:

i dont have one

the answer would be D:1

ANSWER BOTH!!!!!
A:Boris runs 11 miles in 77 minutes.
How many miles does he run per minute?

B: At Hoffman's Bike Rentals, it costs $14 to rent a bike for 3 hours.
How many dollars does it cost per hour of bike use?

Answers

Answer:

i think 847??? i dont know but i hope that helpded

Answer:

a.7 minutes per mile

b. $4.67

Step-by-step explanation:

a. 77/11=7

b.14/3=4.666666= 4.67

4444444444444444444444444444444444444444444444

Answers

Answer:

7

Step-by-step explanation:

the answer is 7
your welcome

We have x tables and y chairs available for prom.
If we put 12 chairs at each table there will be 4 extra chairs with no table.
If we put 14 chairs at each table, one whole table will be empty and another will only have 6 chairs.
How many available tables and chairs do we have available for the prom.

Answers

Answer:

THE ANWSER IS 4

Step-by-step explanation:

Answer:

the answer is 4

Step-by-step explanation:

Having trouble with this question.

It is not B or C

Answers

Answer:

D

Step-by-step explanation:

If we look at the options and we pay attention to D,

Lets work this out Step By Step:

Part 1:

5/4(-2) = -2.5

-2.5 - 3 = -5.5 (Correct)

Part 2:

5/4(4) = 5

5 - 3 = 2 (Correct)

Both of these rows are correct.

Hope this helps!

:)

Select all ratios equivalent to 12:8 A. 15:10 B. 27:12 C. 14:2

Answers

Answer:

(12/8 = 1.5)

A) 15:10

Only A!!!!!! The others are incorrect

No pic/link just type answer pls.

Answers

i got 4.42 hope this helps:)

Help me find the answer to this please!!

Answers

Answer is y=6x

Explanation


When you have a graph, you can find the slope or coefficient next to x, by finding rise over run on the graph or using slope formula.

On the graph, from 0, 0, we go up or rise +6 and go right or run +1. Slope is 6/1 or 6.

Or, you have (0, 0) and (1, 6) as two definite points. Using slope formula
y2 - y1 over x2 - x1

6 - 0 over 1 - 0 = 6/1 or slope of 6.

Y=6x I think. Have a good day

The radius of a circle is 9 cm. Find its area in terms of π.

Answers

972 because use the fórmula for a circle which is 4/3•3.14•r^3
The answer is A≈254.47cm²

Find the area of the triangle.

The area of the triangle is
square units.

Answers

A=40

Step-by-step explanation:

A= b×h÷2

A=10×8÷2

A=80÷2

A=40

Answer:

40 squared units

Step-by-step explanation:

A = b x h / 2

A = 10 x 8 / 2

A = 80 / 2

A = 40 squared units

 Please help I really needed this time I have to do is find the surface area the side please

Answers

Answer:

the perimiter is 56

Step-by-step explanation:

The answer would be 56!!!

Think about the division expression 2 1/5 ÷ 3/5​

Answers

Answer: hope this helps ♡

2⅕ ÷ ⅗ = 11/3 or 3⅔

Step-by-step explanation:

2⅕ ÷ ⅗

= 11/5 (2*5+1) ÷ ⅗

= 11/5 × 5/3 (flip the fraction)

= [tex]\frac{11*5}{5*3}[/tex]

= 55/15 → 11/3 (divided by 5) or 3⅔

the perimeter should be 12 cm right?

Answers

Answer: I'm pretty sure

Step-by-step explanation:

Answer: I think so probably

Baldwin is a salesperson. He sold an oil painting for $386 and earned 18% commission. How much commission did Baldwin earn?

Answers

He earned 69.48$ commission
386 x 0.18= 69.48$.

Answer:

For the painting, 69.48

Step-by-step explanation:

386*18%=69.48

I need help on these questions.

Answers

Answer:

for the second question it would be b ( i think )

Step-by-step explanation:

B for the second for sure not sure about the other one

SOMEONE PLEASE HELP MEE ILL GIVE YOU BRAINIEST THINGY
1. Translate this sentence into an equation. 47 is the sum of 10 and Donnie's score.Use the variable d to represent Donnie's score.

2. Translate the sentence into an inequality.A number c increased by 3 is greater than or equal to -21.

Answers

Answer:

jhgfghjuytrf

Step-by-step explanation:

kgffvgbhnjmkuytfg

Answer:

1-47+10d 2-3>-21

Step-by-step explanation:

pls answer this!!!!!!!!!!!!

Answers

The answer to the question is 90
The answer is 90 because 9x20 is 180 but since it’s a triangle u always divide it by two so it would be 90 hope this helps :)

Please no links and help me answer!!
Ex:
1. (answer)
2. (answer)
3. (answer)
4. (answer)
P.S. Showing work is optional

Answers

7: the answer is C because 3/4 divided by 2/3 equals 1 1/8 and C if you multiply 3/4 x 3/2 it equals 1 1/8

14: the answer is 18 because if you add all the numbers they picked you’ll get 6 then divide it by 1/3 you’ll get 18

Then the other 2 km not sure I’m sorry
28.
She spent 40% of her time on the treadmill

Every hour has 60 minutes, since 6 minutes is 1/10 of an hour it’d also be 10% of the time. Multiply it by 4 and you’ll get 24 minutes and 40%

Simplify each of the expressions below. Which of the expressions have a value between 200 and 500? Select all that apply.
A) (5⋅4)2+(7+4)2
B) (3+2)3+(20÷4)3
C) 12×(5 −2)3
D) 40÷5+(10+3)2

Answers

It’s none of them I guess

k km jkggbkk no klkkjhffd

Answers

You have to use your formal which is
SA=2lw+2lh+2hw
Which will give you your answer of 34
your answer will give you 34

Help me, please

If you use me for points or put in a link I will delete your answer or even the question

Answers

Answer:

3 9/25 should be the correct answer!

Step-by-step explanation:

2 + 4/5 + 2/5 + 4/25 =

2 + 6/5 + 4/25 =

2 + 30/25 + 4/25 =

2 + 34/25 =

2 + 1 9/25 =

3 9/25

3 9/25 ....................

Danny charges $50 for 5 hours of swimming lessons, Martin charges $28 for 2 hours of swimming lessons. Who offers a better deal?

Answers

Answer:

Danny

Step-by-step explanation:

Answer:

Danny

Martin charges $28 for 2 hours and Danny charges $50 for 5 hours sold any charges $10 for an hour and Martin charges $14 an hour

820 brushes decreased by 25% (spam answers will be reported)

Answers

The answer is 615 I think

Answer: The answer is 615←

Step-by-step explanation: Because the answer is 615 you will subtract 820-25%=615, simple math really.

A credit card company charges 17% interest on any charges not paid at the end of the month. In February, $14.45 was paid in interest. How much of the charges were not paid at the end of the month? A. $31.45 B. $245.65 C. $69 D. $85

Answers

I think there is a glitch it wont let me type number s

Answer: D

Explanation:
85x0.17=14.45
0.17 is the interest rate

HELP FASTTTTTTTTTTTTTTTTTTTTTTTTTT

Answers

Answer:

8 feet below sea level

Step-by-step explanation:

because ur already below sea level

Answer:

whoops I answered on the wrong thing but it's d: 8 feet below sea level

Step-by-step explanation:

Can somebody help please

Answers

Answer: A=4x^2+28x+48

PLEASE HELP! WILL GIVE BRAINLIEST IF CORRECT!
What is the equation of the graphed function?

Answers

Your answer would be Y=x(2) + 3
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