Mathematics College

The length of a rectangle is (4x - 2). The width of the
rectangle is (x² + 6x + 4). Which expression represents
the perimeter of the rectangle?

Answers

Answer 1

Step-by-step explanation:

all the explanation is in the photo

The Length Of A Rectangle Is (4x - 2). The Width Of Therectangle Is (x + 6x + 4). Which Expression Representsthe

Related Questions

i hvae this for hw can anyone help me out rq?

Answers

Answer:

0 1 and 5

Step-by-step explanation:

Not 6 because its an open dot which means that 6 is not included

I hope this helps?


John drove 270 miles
in 2 hours. At this
rate, how long will it
take him to drive 405
miles.

Answers

Answer:

3 hrs. Realistically tho he would get a ticket or killed from a crash.

Step-by-step explanation:

270/2 to get mph which is 135mph

405/135 which is 3

So it will take him 3 hrs.

Three students, Linda, Tuan, and Javier, are given five laboratory rats each for a nutritional experiment. Each rat's weight is recorded in grams. Linda feeds her rats Formula A, Tuan feeds his rats Formula B, and Javier feeds his rats Formula C. At the end of a specified time period, each rat is weighed again, and the net gain in grams is recorded. Using a significance level of 10%, test the hypothesis that the three formulas produce the same mean weight gain.
Linda's rats Tuan's rats Javier's rats
43.5 47.0 51.2
39.4 40.5 40.9
41.3 38.9 37.9
46.0 46.3 45.0
38.2 44.2 48.6
Determine whether or not the variance in weight gain is statistically the same among Javier’s and Linda’s rats. Test at a significance level of 10%.

Answers

Answer:

The variance in weight is statistically the same among Javier's and Linda's rats

The null hypothesis will be accepted because the P-value (0.53 ) > ∝ ( level of significance )

Step-by-step explanation:

considering the null hypothesis that there is no difference between the weights of the rats, we will test the weight gain of the rats at 10% significance level with the use of Ti-83 calculator

The results from the One- way ANOVA  ( Numerator )

with the use of Ti-83 calculator

F = .66853

p = .53054

Factor

df = 2  ( degree of freedom )

SS = 23.212

MS = 11.606

Results from  One-way Anova ( denominator )

Ms = 11.606

Error

df = 12 ( degree of freedom )

SS = 208.324

MS = 17.3603

Sxp = 4.16657

where : test statistic = 0.6685

             p-value = 0.53

             level of significance ( ∝ ) = 0.10

The null hypothesis will be accepted because the P-value (0.53 ) > ∝

where Null hypothesis H0 = ∪1 = ∪2 = ∪3

hence The variance in weight is statistically the same among Javier's and Linda's rats

ANSWER NEEDED QUICKLY, RIGHT ANSWER GETS BRIANLIEST!

Angel gave the store clerk $50 to buy 4 T-shirts. The store clerk gave her
$18.16 in change. Each T-shirt cost the same aount.
What is the cost in dollars and cents for each T-shirt?

Answers

Answer:

7.96

Step-by-step explanation:

50-18.16=31.84

31.84 divided by 4 = 7.96

Answer:

Each T - shirt costs $7.96

Step-by-step explanation:

4x + 18.16 = 50

subtract 18.16 from both sides.

4x = 31.84

divide both sides by 4

x = 7.96

Equivalent Ratios: 300:800 = 30:

Answers

Answer:

30:80

Step-by-step explanation:

Because 300 divided by ten is 30 so 800 divided by ten is 80 :)

what is the standard form for 7x + 3x^2

Answers

Answer:

10x^3

Step-by-step explanation:

7+3=10

10x^2

easy

Write the fraction as a product of a whole number and a until fractions 7/8

Answers

Answer: 8/9 cause we sub

Step-by-step explanation:

Please answer ASAP!

Which graph represents a bike traveling at a constant rate of
12 miles per hour?

Answers

Answer:

1st from the left

Step-by-step explanation:

Answer:First one from the left

Step-by-step explanation:

Complete this for me

Answers

Answer:

Step-by-step explanation:

1 Kg of carrot = 40 p

1 1/2 Kg of carrot = 40 * [tex]\frac{3}{2}[/tex]  = 20 * 3 = 60 p  = £ 0.60

1 kg of potato = 52 p

3 kg of potato = 52 *3 = 156 p =  £1.56

1 box of tea bags = 90 p

Number of boxes for  £1.80 = 1.80 ÷ 0.90  = 2 boxes

4 packs of yogurt =  £4.80

1 pack of yogurt   = 4.80 ÷ 4 =  £1.20

Total = 0.60 + 1.56 + 1.80 +4.80 =  £ 8.76

Mai bikes 6 3/4 miles today, and Noah bikes 4 1/2
​

Answers

To find how many times the length of Noah's ride is compared to Mal's, you would divide the two mixed numbers:

6 3/4 divided by 4 1/2

Convert the mixed numbers to improper fractions:

27/4 divided by 9/2

To solve, multiply 27/4 by the reciprocal of 9/2:

27/4 * 2/9 = 3/2 or 1 and 1/2

So Mal's ride is 1.5 times longer than Noah's.

A water tank has a square base of area 5 square meters. Initially the tank contains 70 cubic meters. Water leaves the tank, starting at t=0, at the rate of 2 + 4 t cubic meters per hour. Here t is the time in hours. What is the depth of water remaining in the tank after 3 hours

Answers

Answer:

[tex]9.2\ \text{m}[/tex]

Step-by-step explanation:

[tex]b[/tex] = Surface area of base = 5 square meters

Volume of water in tank = 70 cubic meters

The rate at which the volume is reducing is

[tex]\dfrac{dV}{dt}=2+4t\\\Rightarrow dV=2+4tdt[/tex]

Integrating from [tex]t=0[/tex] to [tex]t=3[/tex]

[tex]V=\int^3_0(2+4t)dt\\\Rightarrow V=2t+2t^2|_0^3\\\Rightarrow V=2\times 3+2\times 3^2-0\\\Rightarrow V=24[/tex]

Volume of water remaining in the tank is [tex]70-24=46\ \text{m}^3[/tex]

Suface area of base [tex]\times[/tex] depth = Volume

[tex]5\times d=46\\\Rightarrow d=\dfrac{46}{5}\\\Rightarrow d=9.2\ \text{m}[/tex]

The depth of the water remaining in the tank is [tex]9.2\ \text{m}[/tex].

PLEASE HELP
I HAVE TO FINISH IN 5 MINS

Answers

Step-by-step explanation:

the answer is

Remove 8 anchors

Jasmine evaluated the expression 3x+2 when x=5.

3x+2

35+2

37
Explain Jasmine’s mistake.

Answers

Answer:

when x = 5

then the value of. (3x+2)

(3*5) + 2

15 + 2

=. 17

her mistake was that she doesn't multiplied 5 and 3

what is the graetest commom factor for 6 and 36

Answers

Answer:

The greatest common factor of 6 and 36 is

6

Hope it will help :)

Answer:

6

Step-by-step explanation:

Which digit(s) make the solution of the equations the whole number ?
5x-347=2,16...
Don’t find X

Answers

Answer:

SOMEONE HURRY AND FIND THE ANSWER

Step-by-step explanation:

5x=216+347
5x=563
X=563
5
X = 563 over 5 is the answer
Do it fouse to be a common there or not I’m loss on that part next time make it clear please

Which one is the right answer

Answers

Answer:

The second one. y = .2x + 1

Step-by-step explanation:

1 = .2*0 + 1

1.4 = .2*2 + 1

And so on

Hope this helps :)

the second one is correct

Which is the measure of < B?

Answers

a (42 degrees) bc the angles are across from each other so they’re equal

3. Using the net, calculate and label the area of each face of the prism.

Add the areas of each face to find the surface area of the prism.
Plz help I will give 100 points to anyone who answers this correctly.

Answers

Answer:

rectangular prism and adding up those areas gives the surface area or total surface area of the prism. For example, if the length of one side of the cube 4 units then the area of one its face is 4 × 4 = 16 square units.

Step-by-step explanation:

k-12

Helps pls help pls thank you so much

Answers

Answer:

Increases, same, increases, decreases

Step-by-step explanation:

I mean just look at the graph

Pls help me answer the question attached

Answers

Mai - 6 and 3/4 is 6.75 miles
Noah - 4 and 1/2 is 4.5 miles

To find out how many times the length of Noah’s bike ride was Mai’s, you would divide so

6.75/ 4.5 = 1.5

Therefore the answer would be
b) 3/2 times as far

Answer:

A.

Step-by-step explanation:

(2/3)*6.75=4.5

Hayden wanted to investigate whether there was a difference in the time spent in the checkout line between two grocery stores. She went to Safeway on a Tuesday morning and recorded the time, in minutes, it took 30 customers to go through a checkout line. Then she went to Whole Foods on Tuesday afternoon and recorded the time it took 30 customers to go through a checkout line. Hayden calculated the mean number of minutes for the customers in each line. She intends to conduct a two-sample t-test for a difference in means between the two stores. Have all conditions for inference been met

Answers

Answer:

No.  The data in this study were not based on a random method.  This is a key requirement for an inference to be made from the two-sample t-test.

Step-by-step explanation:

1. Hayden can use the two-sample t-test (also known as the independent samples t-test)to find out if there was a difference in the time spent in the checkout time between two grocery stores and to conclude whether the difference in the average checkout time between the two stores is really significant or if the difference is due to a random chance.  There are three conditions to be met when using the two-sample t-test.

2. The first condition is that the sampling method must be random.  This requirement was not met in this study.  Each customer from each store should have an equal chance of being selected for the study.  This was not achieved.

3. The distributions of the sample data are approximately normal.  This is achieved with a large sample size of 30 customers selected for each study.

4. The last but not the least condition is the independence of the sample data.  Sample data here is independent for both samples.

2/9 of the students in a school are in sixth grade.

a. How many sixth graders are there if the school has
90 students?

b. How many sixth graders are there if the school has
27 students?

Answers

Answer:

A. 20

B. 6

C.189

Step-by-step explanation:

Check out this app! It's millions of students helping each other get through their schoolwork. https://brainly.app.link/qpzV02MawO​

Answers

Answer:

thanks isn't that what were on

Step-by-step explanation:

0.5(5x - 2.2 )
Expand the expression

Answers

Answer:

2.5x - 1.1

Step-by-step explanation:

0.5 x 5x = 2.5x

0.5 x 2.2 = 1.1

I hope this helps! :)

Ralph hit 20 balls in the batting cage last week
This week he hit 15 balls
What is the percentage decrease

Answers

Answer:

Step-by-step explanation:

What is the solution to the equation? 8/2.1 = 15.3 someone plz help

Answers

Answer:

5.8

Step-by-step explanation:

Which equation represents a line which is perpendicular to the line y = 23 – 4?

Answers

Answer:

y=19

Step-by-step explanation:

ork and check your ansu
x + 5 - 4x = 8

Answers

Answer:

x = -1

Step-by-step explanation:

x+5-4x=8

-5       -5

x-4x=3

-3x=3

/-3    /-3

x=-1

A bag contains 5 red marbles, 3 blue marbles, and 1 green marble. What is the probability of choosing a marble that is not blue? Select one: a. b. c. 6 d.

Answers

6/9 because there are 9 possibilities and 6 of them aren’t blue

Answer:

Add all of the given numbers together.

5 + 3 + 1 = 9

Find out the fraction of the probability of choosing a blue marble, which is 3/9

The probability of choosing a marble that isn't blue is 6/9

~Hope this helps~

11) Which answer choice is equivalent to this
n +n +n + n
C) n.
A)
4+n
(B) An
D) n(n + 3)

Answers

Answer:

4n = B

Step-by-step explanation:

N + N + N + N

Pretend that n is equaled to 2

2 + 2 + 2 + 2 is also equaled to 4 * 2 because there are four 2s.

It is just the same as n + n + n + n = 4 * n

4 * n is also written as 4n which is B.

Lets also look at the other answers.

A does not make sense because 4 + 2 (the example) does not make sense.

C does not make sense because exponents deals with multiplying n and not adding it

D does not make sense because you can already tell using the Distributive property that it is wrong

The answer is b, I hope this helps!

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