MATHEMATICS MIDDLE SCHOOL

If f(x) varies directly with x, and f(x) = 18 when x = 2, find the value of f(x) when x = 6.A.
6

B.
18

C.
36

D.
54

Answers

Answer 1
Answer: If f(x) varies directly with x, that mean there exists some unknown number k such that f(x) = kx.

So we were given that f(x) = 18 when x = 2. So plugging in these values will help you find the value of k.

18 = 2k

k = 9

So we know that k=9, therefore f(x) = 9x.

Now, at x=6, you have f(6) = 9·6 = 54

Therefore answer is D.

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Tanya opened a savings account with a deposit of 550.she deposited 450 and withdrew 120.yesturday, Tanya deposited 720 into her account. What percentage of the new balance was the deposit?

Answers

550+450-120+720=1,600
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=720/160%
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therefore, 45% of new balance

7b+11>9b-13 need to find b>?

Answers

7b+11 > 9b-13\ \ \ \ /-11\n\n7b+11-11 > 9b-13-11\n\n7b > 9b-24\ \ \ \ /-9b\n\n7b-9b > 9b-9b-24\n\n-2b > -24\ \ \ \ /:(-2) < 0\ then\

Jolly Middle School is building a park, in the shape of a square, with an area of 256 square feet. How much fence do they need to buy to close in the park?

Answers

The fence do they need to buy to close in the park is 24.

Given that,

  • Jolly Middle School is building a park, in the shape of a square, with an area of 256 square feet.

Based on the above information, the calculation is as follows:

= 256 / 4

= 24

Therefore we can conclude that The fence do they need to buy to close in the park is 24.

Learn more: brainly.com/question/6201432

Answer:

well that would mean that the perimeter is 256/4 and that is 64

Step-by-step explanation:

i think the answer is 64

If f(x) = x2 and g(x) = 3x - 1 find [ gºf(x)​

Answers

Answer:

gºf(x)​ = 3x^2 -1

Step-by-step explanation:

Given

f(x) = x2

g(x) = 3x - 1

To find

gºf(x)​

To find  gºf(x)​ we will use value of f(x) = x^2 in place of in g(x)

lets do that

g(x) = 3x - 1

gºf(x)​ = 3(f(x)) -1

gºf(x)​ = 3x^2 -1

Thus, value of  gºf(x)​ is   3x^2 -1.

Compare the values of the underlined digits 6,300 and 530 with three being the underlined digit.

Answers

The value of 3 in 6300 is ten times the value of 3 in 530

Further Explanation  

Place value and total value  

  • Place value refers to the value represented by a digit in a number based of its position in the number. Place values can be ones, tens, hundreds, thousands, etc  

For example;

In the number; 13,548, the place value of the digits in the number are;

Ones -8

Tens - 4

Hundreds - 5

Thousands - 3

Ten Thousands – 1

Total value  

  • Total value is given as the product of the digit and its place value.
  • For example; in the number, 13,548.  
  • Total value of digits 1, 3, 5, 4, and 8 in the number 13,548 will be;

1 x 10,000 = 10,000

3 x 1000    = 3,000

5 x 100      = 500

4 x 10        = 40  

8 x 1          = 8

The sum of the total values of digits in a number will be equivalent to the value of that number.

In the question.

Comparing the value of 3 in 6,300 and 530

The value of 3 in 6,300 is 300 and  

The value of 3 in 530 is 30

Therefore; the value of 3 in 6300 is ten times the value of 3 in 530

Keywords: Place value, total value

Learn more about;

Level: Middle school

Subject: Mathematics  

Topic: Place value and total value  

Comparing the values of 3 in each of 6,300 and 530, we will have:

3 in 6300 is 3 hundreds while 3 in 530 is 3 tens

How to solve number place value?

Place value is defined as the value of each digit in a number. For example, the 5 in 853 represents 5 tens, or 50; however, the 5 in 5,003 represents 5 thousands, or 5,000.

We want to compare the values of 3 in each of the numbers 6,300 and 530.

Thus, we can say that:

3 in 6300 is called 3 hundreds while 3 in 30 is called 3 tens or 30

Read more about Number place value at: brainly.com/question/24997908

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vanessa drew a figure and said that it had an infinite number of lines of symmetry. what figure did she draw?

Answers

A circle
That's a very easy one cuz if u try u will find it to be correct
The figure is a circle.
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