4 years ago

Please help finding

Mathematics

1 answer:

Marysya12 [62]4 years ago

8 0

Answer:

im not gay

Step-by-step explanation:

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The function f(r) = π determines the area of a circle in cm2, A, in terms of the radius of the circle in cm, r. a. Write a funct

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Answer with Step-by-step explanation:

We are given that

a. $f(r)=\pi r^2$

$A=\pi r^2$

$r^2=\frac{A}{\pi}$

$g(A)=r=\sqrt{\frac{A}{\pi}}$

b.Radius=2.58 cm

Substitute the values in the formula and $\pi=3.14$

$f(2.58)=3.14(2.58)^2=20.9 cm^2$

Hence, the area of circle =20.9 square cm

c.Area of circle=1530 square cm

$r=\sqrt{\frac{1530}{3.14}}=22.07 cm$

Hence, the radius of circle=22.07 cm

c.Area of circle of radius 15.2 cm= $A_1=3.14(15.2)^2=725.47 cm^2$

Area of circle of radius 15.1 cm= $A_2=3.14(15.1)^2=715.95 cm^2$

$A_1-A_2=725.47-715.95=9.52 cm^2$

Hence, the area of circle whose radius is 15.2 cm is greater than the area of circle of radius 15.1 cm by 9.52 square cm .

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3 years ago

WXYZ is a trapezoid with WX ≅ YZ. Isosceles trapezoid W X Y Z is shown. Sides X Y and W Z are parallel. The length of X Y is 3 a

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Practice multiplying numbers by powers of 10.

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Answer:

Multiply (400 + 20 + 3) x 10000

Add 4 zeros to the end of 423

Step-by-step explanation:

423 x 10,000 = Adding the amount of zero’s in 10000 to 423

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A teacher asks three different students to draw a triangle with the angles 30o, 70o, and 80o. If they draw the angles correctly,

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Scientists have put together bones to make a T-Rex skull that has a mass of 600 pounds. They just found a new tooth fossil to ad

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16 ounces = 1 pound

meaning 2.5 pounds is added to the skull, 602.5 pounds.

Step-by-step explanation:

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