MATHEMATICS MIDDLE SCHOOL

A circle with a radius of 4 in, is dilated by a scale factor of 5. What will be the circumference of the circle after dilation?21 in
4 in
161 in
24 in

Answers

Answer 1
Answer: Ok so circumference=2*pi*radius. So We know that the radius is dilated by a scale factor of 5, so we can put 2*pi*20. For pi you can use So when we multiply 2*pi*20, you get 125.6637

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((8 × 1.95) + (3 × 2.95) + 10.95) × 1.06
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if Marianne bought 10 pounds of of potting soil and her father tells her he needs 13 pounds of potting soil how much additional bags should he buy

Answers

so she bought 10 pounds and she need 13 total so
10+x=13
subtract 10 from both sides
x=3
she needs to buy 3 more pounds of potting soil (number of bags depends on how many pounds per bag)

Write an equation of 45 is the product

Answers

Step-by-step explanation:

The product of two numbers is 45. One number is greater than the other by 4 units. The numbers are as follows.

                                        9 × 5 = 45

Again the product of two numbers is 45. One number is greater than the other by 12 units. The numbers are as follows.

                                        15 × 3 = 45

Again the product of two numbers is 45. One number is greater than the other by 44 units. The numbers are as follows.

                                        45 × 1 = 45
9 * 5 = 45

5 * 9 = 45

15 * 3 = 45

3 * 15 = 45

*Hope that helps and enjoy Brainly :)*

Matthew goes hiking every 12 days and swimming every 6 days. He did bothkinds of exercise today. How many days from now will he go both hiking and
swimming again? Can you please explain how you do this?

Answers

The next 18 days because your trying to see how many days it is until he does BOTH

The function f(x)=-(x-3)^2 +9 can be used to represent the area of a rectangle with the perimeter of 12 units, as a function of the length of the rectangle, x. What is the maximum area of the rectangle?

Answers

Maximum area of the rectangle is 9cm^(2)

Explanation:

Considering the dimensions to be in cm

f(x) = -(x-3)^(2) +9\nf(x) = -(x^(2) +9 - 6x)+9\nf(x) = -x^(2) +6x\nf'(x) = -2x+6\n-2x+6 = 0\n2x=6\nx=3cm\n\n

Putting the value of x = 3

Perimeter = 2(x+b)\n12 = 2(3+b)\n6 = 3+b\nb= 3cm

Area of rectangle = x X b\n = 3 X 3\n = 9cm^(2)

Therefore, maximum area of the rectangle is 9cm^(2)

Sari has a bag containing 6 half dollars and 3 dollar coins. What is the total mass of the coins in Sari's bag? PLZ HELP... :)

Answers

Answer with explanation:

Number of half Dollars in Sari's Bag= 6 Half Dollars

1 Half Dollar =50 cents=1 coin

or, 6 Half Dollars =3 Dollars

It means there are 6 cents in Sari's Bag or 3 Dollars in the Sari's bag.

Total Number of Coins in Sari's Bag=(3 Dollar coins+3 Dollar coins)or (3 Dollar coins+ 6 Cents coins)

⇒→Total Mass of the coins in Sari's Bag=Mass of(3 Dollar coins+6 Cent coin) or Mass of (3 Dollar coins+3 Dollar coins)

=Mass of(3 Dollar coins+6 Cent coins) or Mass of (6 Dollar coins)
Well, if she has 6 half dollars, that is 6 coins.
If she has 3 dollar coins, that is 3 coins. 
altogether that is 9 coins.

are you sure you worded the question right because that was really easy

Last year 3684 people went to a music festival. The number of people who went to the festival
this year was 2/3of last year’s figure.
How many people went to the festival this year?
A 1228
B 2442
C. 2456
D. 5526

Answers

2/3 of 3,684 people = 2,456 souls

That number appears to be the same as
the one that appears in Choice-'C'.
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