please help!!!

i need help with this

Please Help!!!i Need Help With This

Answers

Answer 1

Answer:

Step-by-step explanation:

Combine like terms. Like terms have same variable with same power

a) (2xy + 4x) + (15xy - 5x)  = 2xy + 15xy + 4x - 5x

                                         = 17xy - x

b) (6a + 4b² - 3) + (3b² - 5) = 6a + 4b² + 3b²  - 3 - 5

                                           = 6a + 7b² - 8

c) (4x³ - 3x² +4x) + (8x² - 5x ) = 4x³ - 3x² + 8x²  + 4x - 5x

                                               = 4x³  + 5x² - x

d) (7b - 6a  + 9y) - (12b + 5a - 2y) =

In subtraction, add the additive inverse of (12b + 5a - 2y)

additive inverse = - 12b  - 5a  + 2y

(7b - 6a  + 9y) - (12b + 5a - 2y) = 7b - 6a + 9y  -12b -5a + 2y

                                                   = 7b - 12b  -6a - 5a  + 9y + 2y

                                                   = -5b - 11a + 11y

e) (2x² + 7x - 2 + 9y) - (13x + 4x² + 5 - 6y)

Additive inverse of  13x + 4x² + 5 - 6y = -13x + 4x² - 5 + 6y

(2x² + 7x - 2 + 9y) - (13x + 4x² + 5 - 6y)= 2x² + 7x - 2 + 9y -13x - 4x² -5 +6y

                    = 2x² - 4x² + 7x -13x -2 - 5 + 9y + 6y

                    = -2x²  - 6x  - 7 + 15y


Related Questions

\angle B=∠B=angle, B, equals ^\circ ∘ degrees Round your answer to the nearest hundredth.
ANSWER IS:∠B=56.25

Answers

Answer:

<B is 53.13degrees

Step-by-step explanation:

Find the diagram attached

Given

Opposite side= 4 (side facing <B)

Adjacent side = 3

Required

<B

According to SOH CAH TOAS identity

tan theta = opp/adj

tan<B = 4/3

<B = arctan(4/3)

<B = arctan(1.3333)

<B = 53.13 degrees

Hence the angle <B is 53.13degrees based on the diagram

PLEASE SOMEONE HELP ME ASAP!!!!! I’ll mark brainliest

Answers

Answer:

the first choice

Step-by-step explanation:

the first number is the tens place and the second number is the ones place so:

0,0,11,15...

PLEASE HELP NO LINKS OR FILES
1. When the outcome of one even has NO effect on the outcome of the other is called... A. likely events
B. dependent events
C. independent events

2.Lucy picks a marble at random. Without putting the first marble back, Lucy picks another marble at random. This is called...
A. independent probability
B. random ratios
C. dependent probability
D. natural occurrence

3. A bag contains 9 green marbles and 12 pink marbles. One marble is chosen at random and returned to the bag. Then, a second marble is chosen at random.

What is the probability that both marbles chosen will be green?
A. 6/9
B. 9/49
C. 3/4
D. 81/122

Answers

Answer:

1c

2c

3b

Step-by-step explanation:

please help with this one. I will give brainliest!!

Answers

Answer: 78.54

Step-by-step explanation:

Answer:

31.4 cm²

Step-by-step explanation:

10*3.14=31.4²

Question 1
Form the largest 5-digit number using the digits 9, 2,5, 4, 7 only once
a. 97542
b. 97524
c. 97425
d. 24579

Answers

Answer:

97542

Step-by-step explanation:

Write all the numbers in descending order

hope it helps

Answer: 97542

Step-by-step explanation: go in order of largest to smallest number as starting with a bigger number will let you end with a bigger number

DRAMA
If 720 people voted, how
many chose...
10%
F
А
V
0
R
1
T
E
HORROR
10%
Action
ACTION
SCI FI
Comedy
10%
40%
#一#一#一#
Sci Fi
**
M
o
COMEDY
Horror
>-
>
1
E
30%
Drama
# I
Desmos Calculator
How many more people chose Action than Comedy?

Answers

i would choose comedy

Please help if you know the answer please

Answers

The answer is a, 0.019 because there are zero ones and zero tenths and there are 19 hundredths.

Hope this helps
Please mark brainliest
Let me know if this is wrong
Have a good day
..;)

Answer:

i think the answer is b. 0.19

Step-by-step explanation:

let me know if this is incorrect

The cost for the raw materials of marble countertops, can be represented by the function , where is the area of the countertops. The retail markup, can be represented by the function. Which function can be used to find the marked-up price of a marble countertop depending on the area?

Answers

Answer:

[tex]m(c(a)) = 4.8875a[/tex]

Step-by-step explanation:

The missing parameters are:

[tex]c(a) = 4.25a[/tex] --- Cost of marble countertops

[tex]m(c) = 1.15c[/tex] --- Cost of retail markup

Required

The cost of marked up price

This implies that we calculate m(c(a))

We have:

[tex]c(a) = 4.25a[/tex]

[tex]m(c) = 1.15c[/tex]

[tex]m(c) = 1.15c[/tex] can be written as:

[tex]m(c(a)) = 1.15*c(a)[/tex]

Substitute: [tex]c(a) = 4.25a[/tex]

[tex]m(c(a)) = 1.15*4.25a[/tex]

[tex]m(c(a)) = 4.8875a[/tex]

Hence, the cost of marked up price is: [tex]m(c(a)) = 4.8875a[/tex]

out of 8 marbles, 3 were green. if 37.5% of them were green, what percentage of the marbles were not green

Answers

100-37.5 = 72.5% of the marbles were not green

Answer:

62.5%

Step-by-step explanation:

100% - 37.5% = 62.5%

The cost for a ticket at the movie theater is $13. Students get a 9% discount taken off the price of a ticket. How much does the student ticket cost after the discount is taken off?


Explain and make sure it’s right for BRAINLIST.

Answers

so 9% of 13 is 1.17
so then you go $13 - $1.17 and your answer is $11.83

Layla is going to invest $5,200 and leave it in an account for 15 years. Assuming the interest is compounded monthly, what interest rate, to the nearest tenth of a percent, would be required in order for Layla to end up with $13,800?

Answers

Answer:

6.5%

Step-by-step explanation:

I just know

ANSWER THIS PLEASE ASAP
Candice and Chris run a relay race at recess. Candice runs 3/3 of a lap
around the track. Chris runs 1/3 of a lap around the track. How much farther does Candice run than Chris?

Answers

Candice ran 1/6 of a lap further than Chris.
Step-by-step explanation:
we know that
To find out how much further Candice runs than Chris, subtract the distance Chris runs from the distance Candice runs
so

Helppp pls giving 20 points

Answers

Answer:

D) (4, -6)

Step-by-step explanation:

Point C is currently at (2, -5)

The translation is:

(x, y) → (x + 2, y - 1)

New point:

(2, -5) → (x + 2, y - 1)

(4, -6)

the correct answer is d
(

628284847. hope this helps

Which ordered pair is a solution to the system of equations below?
y = -2x – 1
y = 3x – 26

Answers

C. (5, -11) hope this helps and I’m like sure sure it’s right

GIVING BRAINLIEST AND EXTRA POINTS!!!! PLS HELP :(

Which images below are scalene triangles?

A) Triangles A and D
B) Triangles B and D
C) Triangles A and C
D) Triangles C and D

Answers

A is the right and Zoe

Answer:A is the right

Help me, please. Don't just claim my points, it's irritating

Answers

Answer:

8.239x10^-5

so the answer is A

Step-by-step explanation:

trust me

ps. use photomath on phone

Write both number with the same power of 10, factor out that power of 10 (since it's common to both terms), then simplify to standard scientific notation (that is, a.bcd... × 10⁻ⁿ):

(8.28 × 10⁻⁵) - (4.1 × 10⁻⁷) = (828 × 10⁻⁷) - (4.1 × 10⁻⁷)

… = (828 - 4.1) × 10⁻⁷

… = 823.9 × 10⁻⁷

… = 8.239 × 10⁻⁵

Does this graph represent a function?

Answers

Yeas it does represent a function

Help please :):))))))))))))))

Answers

Answer: the 2nd box

Step-by-step explanation:

Please help me out



Find the area .

Answers

Answer:

its27.54 8.1×3.4 =27.54 base×height

A scientist planted seeds in 4 sections of soil for an experiment. Not all of the
seeds grew into plants. After 20 days, the scientist counted the number of
plants in each of the 4 sections. The results are shown in the table.
• Use the data in the table to determine approximately how many plants
grew per square foot.
• Explain or show how you determined your approximation.
• Let y be the number of plants expected to grow in x square feet. Write an
equation the scientist could use to model the relationship between y and x.

Answers

Answer:

I think you would multiply 20 × 4 and the answer would be 80 that the scientist counted the number of plants in each 4 sections after 20 days.

The number of plants per square foot will be; 48.

Given that scientist planted seeds in 4 sections of soil for an experiment. Not all of the seeds grew into plants. After 20 days, the scientist counted the number of plants in each of the 4 sections.

What is addition?

The addition is one of the mathematical operations. The addition of two numbers results in the total amount of the combined value.

The number of plants per square foot:

= (25 × 13) + (100 × 38) + (125 × 47) + (150 × 62) / (25 + 100 + 125 + 150)

= (325 + 3800 + 5875 + 9300) / 400

= 48.25

Thus, it was illustrated by the number of plants and size of sections.

Thus, the number of plants per square foot will be 48.

To learn more about square foot refer to:

brainly.com/question/24657062

#SPJ2

please help I will; really appreciate it

Answers

Answer:

x+ 51+41=180°

X= 180-92

x= 88

Thus this is your answer.

Answer:

H < I < J

Step-by-step explanation:

H + I + J = 180

41 + 51 + J = 180

92 + J = 180

J = 88

Help! please and thank you!!

Answers

Answer:

y = (x - 4)(x + 2)

Step-by-step explanation:

Quadratic Formula:

ax² + bx + c = 0

Substitute 1 for a, -2 for b, and -8 - y for c in the quadratic formula.

Answer:

[tex]y= (x-4)(x+2)[/tex]

Step-by-step explanation:

To factor polynomials you have to use FOIL. Which stands for First, Outer, Inner, and Last. This means that you have to multiply the first numbers of each part by each other, the outer two between both parts, the inner two between both parts, and the last two of each part, respectively. Then, you would simplify. If you go and do this for each answer choice, the last one would be the only correct one.


A bag contains 9 blue marbles and 36 green marbles. If a representative sample contains 3 blue
marbles, then how many green marbles would you expect it to contain? Explain.

Answers

Answer:

It is 12 green marbles

Step-by-step explanation:

[tex] \frac{9}{3} = 3 \\ \\ \frac{36}{x} = 3 \\ x = \frac{36}{3} \\ x = 12[/tex]

I hope that is useful for you :)

Which equation has the solution x=6

A. 5x + 7 = 33
B. 5x - 5 = 25
C. 5x + 6 = -36
D. 3x - 9 = 33

you will be marked as BRAINLIEST:)

Answers

Answer:

B. x=6

move all terms to the left that don't contain x to the right side and solve.

i’m not that smart but i suppose it’s B

PLZ HELP DUE TODAY NO LINKS I WILL REPORT!!!

Answers

Answer:

452.16 in^2

Step-by-step explanation:

multiply 12 times 12

then multiply that number by Pi(3.14)

F(x)=400-4/5x find the function and intercepts

Answers

Answer:

The x-intercept is (500, 0);  the y-intercept is (0, 400).

Step-by-step explanation:

F(x)=400-4/5x is already a function:  a function of x.

To find the y-intercept, set x = 0 and calculate F(0):

    F(0) = 400 - 0 = 400; the y-intercept is (0, 400).

To find the x-intercept, set F(x) = y = 0 and solve for x:

     0 = F(x) = 400 - (4/5)x, or (4/5)x = 400.  To isolate x, multiply both

     sides by (5/4):  x = (5/4)(400) = 500.  The x-intercept is (500, 0).

Can someone help on really stuck

Answers

bro just use the app

1. ris 4 more than the product of 7 and 8

Answers

Answer:

i dont know if this is the answer u want

4+(7*8)=x

x= 60

Step-by-step explanation:

Kaj has a bag that contains pineapple chews, cherry chews, and peach chews. She performs an experiment. Kaj randomly removes a chew from the bag, records the result, and returns the chew to the bag. Kaj performs the experiment 24 times. The results are shown below:
A pineapple chew was selected 17 times.
A cherry chew was selected 5 times.
A peach chew was selected 2 times.

Based on these results, express the probability that the next chew Kaj removes from the bag will be peach chew as a fraction in simplest form.

Answers

Answer:

54%

Step-by-step explanation:

Answer:

1/12

Step-by-step explanation:

i got it right on delta math

Use the distance formula to find the distance between each pair of points round to the nearest 10th if necessary

Answers

Given:

The pairs of points are:

a. A(-6,-4), B(-3,-1)

b. C(3.5,1), D(-4,2.5)

c. X(5,-5), Y(-5,5)

To find:

The distance between the pair of points by using the distance formula.

Solution:

Distance formula:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

a.

Using the distance formula, the distance between the points A(-6,-4) and B(-3,-1) is:

[tex]AB=\sqrt{(-3-(-6))^2+((-1-(-4))^2}[/tex]

[tex]AB=\sqrt{(3)^2+(3)^2}[/tex]

[tex]AB=\sqrt{2(3)^2}[/tex]

[tex]AB=3\sqrt{2}[/tex]

[tex]AB\approx 4.2[/tex]

Therefore, the distance between the points A(-6,-4) and B(-3,-1) is about 4.2 units.

b.

Using the distance formula, the distance between the points C(3.5,1) and D(-4,2.5) is:

[tex]CD=\sqrt{(-4-3.5)^2+(2.5-1)^2}[/tex]

[tex]CD=\sqrt{(-7.5)^2+(1.5)^2}[/tex]

[tex]CD=\sqrt{56.25+2.25 }[/tex]

[tex]CD=\sqrt{58.5 }[/tex]

[tex]CD\approx 7.6[/tex]

Therefore, the distance between the points C(3.5,1) and D(-4,2.5) is about 7.6 units.

c.

Using the distance formula, the distance between the points X(5,-5) and Y(-5,5) is:

[tex]XY=\sqrt{(-5-5)^2+(5-(-5))^2}[/tex]

[tex]XY=\sqrt{(-10)^2+(10)^2}[/tex]

[tex]XY=\sqrt{100+100}[/tex]

[tex]XY=\sqrt{200}[/tex]

[tex]XY\approx 14.1[/tex]

Therefore, the distance between the points X(5,-5) and Y(-5,5) is about 14.1 units.

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