3 years ago

PLSS HELP ASAP What is the area of a toonie ? (28cm) And the radius

Mathematics

1 answer:

allsm [11]3 years ago

6 0

Answer:

sorry I don't know this answer

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Whats the missing number

Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

X * 3^2 +2 = 47

X * 9 + 2 = 47

9X = 47 - 2

9x = 45

x = 45 : 9

X = 5

4 0

3 years ago

Lisa needs 250 yards of yarn to knit a hat. She has 185 yards of yarn and needs to buy the rest. How many yards of yarn does she

Alecsey [184]

Answer:

it's answer is y + 185 = 250; y = 65

hope it helps you

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3 years ago

Find the coordinates of the point (a, b).

Leviafan [203]

Answer:

a = $\frac{1}{\sqrt{2} }$ and b = $\frac{\sqrt{2} }{2}$

Step-by-step explanation:

As we know, the radius of the unit circle is 1 unit (it is the hypotenuse in the right triangle, the blue line)

We use trigonometric formulas to find out a and b

Sin(45) = opposite side / hypotenuse

<=> Sin(45) = b / 1

<=> b= Sin(45)*1 = $\frac{\sqrt{2} }{2}$

Cos(45) = adjacent side / hypotenuse

<=> Cos(45) = a / 1

<=> a = Cos(45)*1 = $\frac{1}{\sqrt{2} }$

So: a = $\frac{1}{\sqrt{2} }$ and b = $\frac{\sqrt{2} }{2}$

5 0

3 years ago

This graph represents the path of a baseball hit during practice.

zaharov [31]

Answer:

Step-by-step explanation:

x-coordinate of the vertex is the time the baseball reaches maximum height.

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3 years ago

Which numeration system is also known as 10 base numeration system

Kobotan [32]

Answer:

decimal system

..........

8 0

3 years ago