MATHEMATICS MIDDLE SCHOOL

A bicycle wheel has a diameter of 21 inches.What is the circumference of this wheel?What is the radius

Answers

Answer 1

Answer:

Answer:

C = 65.97 in; r = 10.5 in

Step-by-step explanation:

The circumference is C = πd. Since the diameter is 21 in, the circumference is C = (3.14)(21 in) = 65.97 inches.

The radius is half the diameter:

r = (21 in) / 2 = 10.5 in

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Give me an example of a permutation

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Which of the following equations best describes a square root function that is reflected across the x-axis and has a vertex of (−4,2)?A. $y=√(-(x-4)) +2$

B. $y= -√(x+2)-4$

C. $y=-√(x+4) +2$

D. $y=-√(x-4) +2$

Answers

Answer:

Step-by-step explanation:

Rather than picking, let's try to construct one from the description.

reflected over the x axis means - $√(x)$

the vertex is usually at (0,0), now how do we move a graph? or in other words translating it.

To move left and right you use $√(x-h)$ where if you subtract h you move right and if you add h you move left. we go from (0,0) to (-4,2). so 0 to -4 is 4 left, so that means we add 4.

To move up and down we use $√(x)+v$ Here if v is positive you move up and if v is negative you move down. going from (0,0) to (-4,2) it moves up 2

So now we put them all together $-√(x+4)+2$ And if you look, C matches that exactly.

If candace throws a dart at the board what is the probability that her dart is not in the circle

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I'm assuming you mean the very middle circle and the chances of NOT hitting the middle circle are about 90%, but with some practice that number can drop

Use properties to find the sum or product of 6x 107

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k what i think it is is 642 if its a multiplication question

What is the area of a parallegram that has a base of 12 3/4 in and a height of 1/2 in

Answers

So the parallelogram Formula is B×H
Plug in
12 3\4 ×1\2
51\4 × 1\2
51\8 = 6.375
So if you solve you will be gated 6.375

area=base times height
base=12 and 3/4
height=1/2
area=12 and 3/4 times 1/2
12 and 3/4=12+3/4
area=(12+3/4) times 1/2
distribute using distributive propery a(b+c)=ab+ac
area=12 times 1/2+3/4 times 1/2
area=6+3/8
area=6 and 3/8 square inches (square inches=in^2))

Harry estimate that his dinner will have 48g of fat her total allowance is 70g what percentage of her total daily allowance of fat be round your answer to a whole number

Answers

Answer: about 69%

Step-by-step explanation:

Given: Total allowance of fat = 70 g

The amount of fat estimated by Harry in his dinner= 48 g

Now, the percentage of her total daily allowance of fat is given by :-

$\frac{\text{Fat in Food}}{\text{Total allowance of fat}}*100\n\n=(48)/(70)*100=68.571428\approx69\%$

Hence, his dinner will have about 69% of her total daily allowance of fat .

х = 48 * 100 : 70 - the proportion
х = 67 g is her total daily allowance of fat

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