Mathematics College

help me out not all just what you can

Help Me Out Not All Just What You Can

Answers

Answer 1

9514 1404 393

Answer:

  1e. 2t² +8t -6

  2h. a² +2ab -3b²

  3b. 8r +4

  4b. 6x +4y -11

  5b. e -3

Step-by-step explanation:

1e. Combine like terms.

  (3t² +3t -6) +(-t² +5t) = t²(3 -1) +t(3 +5) -6

  = 2t² +8t -6

__

2h. (2a² +3ab -4b²) -(a² +ab -b²)

Use the distributive property to eliminate parentheses. Note that all signs change in the second set of parentheses.

  = 2a² +3ab -4b² -a² -ab +b² = a²(2 -1) +ab(3 -1) +b²(-4+1)

  = a² +2ab -3b²

__

3b. The hash marks indicate sides of the same length. The perimeter is the sum of all side lengths.

  P = (4r -2) +2(2r +3)

  P = 4r -2 +4r +6 . . . . . . eliminate parentheses

  P = 8r +4 . . . . . . . . . . . . combine like terms

__

4b. (3x +4y) +(5x -8) -(2x +3)

Note that the distributive property changes the sign of all terms in the last parentheses.

  = 3x +4y +5x -8 -2x -3 . . . . eliminate parentheses

  = x(3+5-2) +y(4) +(-8-3) . . . group like terms

  = 6x +4y -11

__

5b.

  Bill's age - Erin's age = (2e-3) -(e) = e -3

The difference in their ages is (e -3).

Related Questions

Which is the graph of f(x)=3^x

Answers

Answer:

Now plot the points in the coordinate plane.

Finally draw a smooth curve joining the points.

Step-by-step explanation:

Yeshdjsksjshwndjskajahajaa

Kristin has 3 2/3 yards of plaid ribbon. She has 2 5/6 yards of polka-dot ribbon.

How much more plaid ribbon than polka-dot ribbon does she have?
Last one

Answers

Answer:

7/8

Step-by-step explanation:

I think but im 60% im right

On the graph of f(x)=sinx and the interval [0,2π), for what value of x does f(x) achieve a minimum? Choose all answers that apply.

Select all that apply:
0
π/4
π/2
π
3π/2

Answers

Answer:

3π/2

Step-by-step explanation:

See attached graph

Joan reads that the mass of an average
elephant's brain is 34 kilograms greater
than an average man's brain. How many
kilograms is an average elephant's brain?

Answers

Answer:

35.5 kilograms

Step-by-step explanation:

An average human's brain is 1.5 kilograms.

1.5 + 34 = 35.5

Kerry has 300 marbles. 25% of the marbles are green 15% of the marbles are red and the rest of the marbles are blue. How many blue marbles does he have

Answers

Answer:

180

Step-by-step explanation:

1%=3

25%=75

15%=45

100-(25+15)=60

60%=60*3=180

PLEASE HELP ME ANSWER The probability that Scott will be late for work is 0.15. In a year Scott works for 240 days. Work out the expected number of days that he will be late......

Answers

Answer:

36 days

Step-by-step explanation:

Given

[tex]p = 0.15[/tex] -- probability of coming late to work

[tex]n = 240[/tex] -- number of days

Required

Determine the expected number of days of coming late (E(x))

This is calculated using:

[tex]E(x) = np[/tex]

[tex]E(x) = 240 * 0.15[/tex]

[tex]E(x) = 36[/tex]

The expected number of days is 36

32 = 4(n – 5) and -s + 11 = 17 please solved Both of the following​

Answers

Answer:

n=13 s=-6

Step-by-step explanation:

Hope this helps :)

Answer:

Step-by-step explanation:

Let's solve your system by substitution.

32=4(n−5);−s+11=17

Rewrite equations:

32=4n−20;−s+11=17

Step: Solve 32=4n−20 for n:

32=4n−20

32+−4n=4n−20+−4n(Add -4n to both sides)

−4n+32=−20

−4n+32+−32=−20+−32(Add -32 to both sides)

−4n=−52

−4n/ −4 =/ −52/ −4

(Divide both sides by -4)

n=13

Step: Substitute 13 for n in  −s+11=17:

−s+11=17

−s+11=17

−s+11+−11=17+−11(Add -11 to both sides)

−s=6

−s/ −1 = 6/ −1

(Divide both sides by -1)

s=−6

Answer:

n=13 and s=−6

 

ebook
2.3.49
Write an equation in standard form of the line passing through the points (1,5) and (3, 13).

Answers

Answer:

[tex]y - 4x = 1[/tex]

Step-by-step explanation:

Given

[tex](x_1,y_1) = (1,5)[/tex]

[tex](x_2,y_2) = (3,13)[/tex]

Required

The equation of the line

Back up:

First, calculate the slope(m)

[tex]m = \frac{y_2 -y_1}{x_2 - x_1}[/tex]

[tex]m = \frac{13-5}{3-1}[/tex]

[tex]m = \frac{8}{2}[/tex]

[tex]m = 4[/tex]

Calculate the area using:

[tex]y - y_1 = m(x - x_1)[/tex]

[tex]y- 5 = 4(x - 1)[/tex]

[tex]y- 5 = 4x - 4[/tex]

Collect Like Terms

[tex]y - 4x = 5 - 4[/tex]

[tex]y - 4x = 1[/tex]


What is the least value of x for which the inequality is true?
16 > - 2x

Answers

Answer:

Step-by-step explanation:

16>-2x

-2x<16

x>-8

Which of these has the smallest product?

Answers

Answer:

B

Step-by-step explanation:

1/5 x 5/6 = 5/30

Hope this helps!

what is the square root of 121

Answers

Answer:

11

Step-by-step explanation:

Which expression is equivalent to 2x2 + 2x + 4? (2x - 1)(x + 4) (2x + 1)(x - 4) C (2x + 1)(x + 4) None of these​

Answers

Answer:

D. None of these​

Step-by-step explanation:

Given expression:

2x² + 2x + 4

Answer options for equivalent expression:

A. (2x - 1)(x + 4)= 2x² + 8x - x - 4 = 2x² + 7x - 4

Incorrect

B. (2x + 1)(x - 4) = 2x² - 8x + x - 4 = 2x² - 7x - 4

Incorrect

C. (2x + 1)(x + 4) = 2x² + 8x + x + 4 = 2x² + 9x + 4

Incorrect

D. None of these​

Correct

Which set of numbers are factors of 20? *
25 points
3, 5, 9
2, 4, 6
1, 2, 4

Answers

The answer is the last one, 1, 2, 4 :)))

Answer:

the asswer is 1 2 4

Step-by-step explanation:

1×20=30

2×10=20

4×5=2

Which point is a solution to the inequality shown in this graph?
(3, 2)
(-3,-6)

Answers

Answer:

B. (0, 5)

Step-by-step explanation:

All points on the blue shaded area are solutions. Points on the dashed line and on the white area are not solutions.

(-3, -6) and (3, 2) are on the dashed line and are not solutions.

(5, 0) is in the white area and is not a solution.

(0, 5) is in the shaded area and is a solution.

Answer: B. (0, 5)

If x=5 then what is 3x+(2-4x). P.S. standard form

Answers

Answer:

-3

Step-by-step explanation:

3x+(2-4x)

3*5+(2-4*5)

3*5+(2-20)

3*5+(-18)

3*5-18

15-18

-3

3x + 2 - 4x
3x - 4x + 2
-1x + 2
-1(5) + 2

(-5 + 5i) + (4 – 4i)?

Answers

Answer:

The answer is:

Step-by-step explanation:

1. -30

2. 20

-1 + i is your answer

3/4 X24 in simplest from

Answers

Answer:

3/4 x 24 = 3/4 x 24/1 = 72/4 = 18

Let me know if this helps!

plssssss someone help pls pls pls i dont get this look
Suppose you know that ∠S and ∠Y are complementary, and that m∠S = 4(m∠Y) − 160°. Find m∠Y

Answers

Answer:

I think the answer is 50.

Step-by-step explanation:

Y + S = 90

S = 4 (Y) - 160

160 = 4 (Y)

Y = 40

90 - 40 = 50

Hope it's correct and helps!

THE MARKED PRICE OF A BOOK IS ₹225 THE PUBILSHER ALLOWS DISCOUNT ₹ 10PERSENT UNIT FIND THE SELLING PROFIT​

Answers

255-10

245 skaisusjxl ksusus

Marked price=Rs. 225
Discount=10%
=
100
10
​
×225=22.5Rs.
S.P.=M.P.−Discount
=Rs. (225−22.5)
=Rs. 202.5.

Find the GCF of 4y and 12y

Answers

Answer:

4

Step-by-step explanation:

The factors of 4 are: 1, 2, 4

The factors of 12 are: 1, 2, 3, 4, 6, 12

Then the greatest common factor is 4.

Hope this helps! :D

Please mark brainlist

Answer:

4y

Step-by-step explanation:

I just took it in my math period,

Can anyone help me with this? (I also need a reasoning)

Answers

Work:

Substitute the number to corresponding variable.


Sai: B = 2/3G

(4) = 2/3(6)

4 = 4 Correct


Tyani: G = 3/2B

(6) = 3/2(4)

6 = 6


Both are correct.

4 − 3( − 2) + (1/2)(6 − 8)

Answers

Answer:

9

Step-by-step explanation:

Answer: 9

Step-by-step explanation:

answer this please!!

Answers

Answer:

I really don't know, but you submitted this like 23 hours ago, so I don't think it will help if I answer!!!

Step-by-step explanation:

Can I be Brainliest!!!

Sam made fruit punch for a party. He mixed 3 gallons of orange juice, 2 quarts of pineapple juice, 4 pints of cranberry juice, and 6 cups of apple juice. How many quarts did he make in all?

Answers

Answer:

19 quarts

Step-by-step explanation:

you change the measurements to quarts.

-6х + 5 y = 1
6х + 4 y = –10

Answers

Times top equation by -1
6x-5y=-1
6x+4y=-10
Subtract bottom equation by top
-9y=9
y=-1
substitute this into an equation
-6x-5=1
add 5 to both sides
-6x=6
x=-1
y=-1 x=-1

Answer: 16-!

Step-by-step explanation:

PLEASE SOMEONE HELP WITH MY MATH!

Answers

Answer:

Oop

Step-by-step explanation:

PLEASE HELP ITS ALMOST DUE

Answers

Answer:

we have"

[tex]\frac{q}{36}=\frac{16-q}{28}\\\\<=>28q=36(16-q)\\\\<=>28q=576-36q\\\\<=>64q=576\\\\=>q=9[/tex]

Step-by-step explanation:

What is the slope of the line that passes through (0, -4) and (6,4)? *
3/4
4/3
0 -3/4
- 4/3

Answers

ANSWER:

The Slope to your answer is 4/3

Help me with my math **50 pts** I mark brainliest**

Answers

Answer:

2)

[tex]2x + 6x + 8 = 32[/tex]

collect like terms

[tex]8x + 8 = 32[/tex]

move the constant to the right hand side and change its sign.

[tex]8x = 32 - 8[/tex]

Subtract the numbers

[tex]8x = 24[/tex]

Divide both sides of the equation by 8

[tex]x = 3[/tex]

Help! I need help with these problems. please help.

Answers

Answer:

1. medium

2. 20%

3. 12.48

4. Noah

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