Perform the operation.
(6x2 + 7x + 2) - (-9x2 – 10)
Perform the operation help please

Answer:

14.50

Step-by-step explanation:

I'd appreciate a like B)

Answer:

the red dot is the given point.

Step-by-step explanation:

Answer: Cluster Sampling

Step-by-step explanation: I just took this test and got it correct :)

If the researchers choose three freshmen seminar classes at random and poll every pupil in those classes. The Cluster Sampling method was applied. Option A is correct.

In the probability sampling technique known as cluster sampling, you split a population into groups, such as districts or schools, and then randomly choose a sample from among these groups. Ideally, each cluster should be a small representation of the population as a whole.

When studying large, dispersed populations, cluster sampling is most effective since interviewing every individual would be expensive, time-consuming, and sometimes impossible.

By using cluster sampling, it is possible to create smaller, more comparable clusters that represent the population being studied.

Thus, the researchers choose three freshmen seminar classes at random and polled every pupil in those classes. The Cluster Sampling method was applied. Option A is correct.

Learn more about cluster sampling here,

https://brainly.com/question/14937422

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Answer:

x-intercept: (9,0)

y-intercept: (0,-9)  

Step-by-step explanation:

The x-intercept and y-intercept is the point at which a line intersects the x-axis and y-axis, respectively. All points on the x-axis have a y-value of 0, while all points on the y-axis have an x-value of 0. Thus, to find the x and y intercepts, substitute 0 for one of the variables in the equation, then solve for the other.

1) To find the x-intercept, substitute 0 for y. Then, isolate x.

[tex]4x-4(0)=36\\4x-0=36\\4x = 36\\x = 9[/tex]

So, the x-intercept must be (9,0).

2) To find the y-intercept, substitute 0 for x. Then, isolate y.

[tex]4(0)-4y = 36\\0-4y = 36\\-4y = 36\\y = -9[/tex]

So, the y-intercept must be (0,-9).

Answer:

6. 75 Students in Mrs.Reynolds class.

7. 60 Birthdays in February

8. February and May are a combined 20% of birthdays

9. March has 24% of the students birthdays

Step-by-step explanation:

6.   Adding all the numbers will give us 75 total students.

7.   450 divided by 7 will get us 6. And there are 10 birthdays in February, so we do 10 times 6 and get 60.

8.   On a calculator if you input 20% of 75 you will get 15. February and May are the only 2 birthday months that if you add them up you get 15.

9.   If you put 24% of 75 on a calculator you will get 18. March is the only month with 18 birthdays.

There is Mrs. Reynolds' class has 75 students. February has 60 birthdays. February and May account for 20% of all birthdays. In March, 24% of students celebrate their birthdays.

A graph can be defined as a pictorial representation or a diagram that represents data or values.

Mrs. Reynolds creates a graph of the number of students who have birthdays in the first half of the year.

The graph has been given in the question.

Here y-axis represents Months and the x-axis represents the Number of students

As per the given graph, the required solution would be as:

Adding all of the numbers together generates a total of 75 students.

450 divided by 7 equals 6. And there are ten birthdays in February, so multiply 10 by 6 to get 60.

If you enter 20% of 75 into a calculator, you will obtain 15. February and May are the only two birthday months that total up to 15.

If you multiply 24% of 75 by 18, you get 18. March is the only month in which there are 18 birthdays.

Thus, there is Mrs. Reynolds' class has 75 students. February has 60 birthdays. February and May account for 20% of all birthdays. In March, 24% of students celebrate their birthdays.

Learn more about the graphs here:

brainly.com/question/16608196

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Answer:

C) 2,2,2.82842712

Step-by-step explanation:

Answer:

B and C

Step-by-step explanation:

Side lengths of 4, 8, and 12 do not form a right triangle. According to the Pythagorean Theorem, a² + b² = c². In this theorem, "c²" represents the largest side (c) squared

Answer:

ok 7 in with 37 bbhjn ynbg

Step-by-step explanation:

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Answer:

a) p = -84

b) m = 23

Step-by-step explanation:

p = -4

a = 19 + 2p  

⇒ 19 + 2 x -4

⇒ -84

m = 3

[tex]m^{3}[/tex] - 4

⇒ [tex]3^{3}[/tex] - 4

⇒ 23

Answer:

9.11

Step-by-step explanation:

Given that,

[tex]\dfrac{x}{y}=-3[/tex]

We need to find the value of [tex]\dfrac{x^2}{y^2}+\dfrac{y^2}{x^2}[/tex]

The value of [tex]\dfrac{y}{x}=\dfrac{-1}{3}[/tex]

So,

[tex]\dfrac{x^2}{y^2}+\dfrac{y^2}{x^2}=(\dfrac{x}{y})^2+(\dfrac{y}{x})^2\\\\=(-3)^2+(\dfrac{-1}{3})^2\\\\=9+\dfrac{1}{9}\\\\=9.11[/tex]

So, the required answer is equal to 9.11.

Answer: it is 9 because 10 - 1 = 9

Step-by-step explanation:

Answer:

Answer 9 because 10-1=9

Step-by-step explanation:

If you have 10  apples and if I stole one from you then it will 9.

→ y = 7 ༝ 3 + 3

→ y = 21 + 3

→ y = 24

Hence, value of y is 24.

Answer:

y=24

Step-by-step explanation:

7(3)+3

21+3=24 Answer

Answer:

length x width x height

2x2x3=12

12 cubed millimeters.

Answer:

Length = 7

Width = 5

Perimeter = 24

Area = 35

Step-by-step explanation:

Answer:

length=7 width=5 perimeter=24 area=35

Answer:

parallel lines do not intersect at one point.

Step-by-step explanation:

hope this helps :)

Answer:

"Parallel lines intersect at one point" is NOT true

Step-by-step explanation:

Parallel lines never touch, therefore they will never intersect.

While with the other two options, parallel lines will have the same slope because they run at the same slope equal distance from each other no matter the circumstance, that is the definition of parallel lines... sorta; and perpendicular lines will always create a right angle at their point of intersection.

Hope this helps, Sista :)

(Brainliest?)

Answer:

60.000 litres

Step-by-step explanation:

If a cow produces 25 liters of milk a day, 240 cows bring how many liters a day

240×25=x

x=6.000

If 240 cows produce 6000 liters of milk per day, how many liters per year they produce

have the potential to give milk for 10 months a year

6000×10=60.000 litres

Answer:

Cereal A is cheaper by $0.15

Step-by-step explanation:

Cost of a 10-ounce box of Cereal A = $2.70

So,

Cost of a 1-ounce box of Cereal A = [tex]\frac{2.70}{10}=\$0.27[/tex]

Cost of a 15-ounce box of Cereal A = [tex]0.27(15)=\$4.05[/tex]

Also,

Cost of a 13-ounce box of Cereal B = $3.64

So,

Cost of a 1-ounce box of Cereal B = [tex]\frac{3.64}{13}=\$0.28[/tex]

Cost of a 15-ounce box of Cereal B = [tex]=0.28(15)=\$4.2[/tex]

Here,

Cost of a 15-ounce box of Cereal B - Cost of a 15-ounce box of Cereal A = [tex]4.2-4.05=\$0.15[/tex]

Therefore,

Cereal A is cheaper by $0.15

I dont Know.

I dont Know.

I dont Know.

I dont Know.

Answer:

3 hours and 15 minutes

Step-by-step explanation:

Answer:

1 hour 42 minutes approx

Step-by-step explanation:

Given data

Mayas work rate= 1/4 room per hour

Reginald work rate= 1/3 room per hour

Let the total time taken for both of them be T

Hence their combined work rate

1/4+1/3= 1/T

3+4/12=1/T

7/12=1/T

T= 12/7

T= 1.7 hours

Hence it will take them 1 hour 42 minutes approx

Answer:8.66666666

Step-by-step explanation:

Answer:

x : y

2   0

3   1

4   2

5   3

Step-by-step explanation:

you just subtract two from whatever number is on the left, for example 2-2=0, 3-2=1, and so on :)

Answer:

$292.74 :)

Step-by-step explenation

i searchd it