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3 years ago

Find the area of a circle with a radius of 0.4 inches

Mathematics

1 answer:

AleksandrR [38]3 years ago

3 0

Answer:

0.16 π

Step-by-step explanation:

Using the area formula pi*r^2 we can find the area of the circle, plugging in the numbers gets us pi*(0.4)^2 = 0.16 π

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The area of the rectangle below is sq. units. Help me pls :(

Lisa [10]

Answer:

Step-by-step explanation:

Hey There!

To find the area of a rectangle we do length times width

17 is the width and 4 is the length

so area is equal to 17x4

17x4=68 so your answer would be D

8 0

3 years ago

Read 2 more answers

Write an equation for this linear function. f(0)=3 and f(3)=0 f(x)=

Jlenok [28]

Answer:

f(x)=-x+3

Step-by-step explanation:

contains (0, 3) and (3, 0)

slope = (3-0)/(0-3)=3/-3=-1

f(x)=-x+b

b=3

f(x)=-x+3

5 0

2 years ago

Evaluate x ÷ y for x = 3 and y = 12.

eduard

Answer:

1/4 or 0.25

Step-by-step explanation:

Lets plug x and y into the equation. We now have 3/12, which would be equal to 1/4 or 0.25

6 0

3 years ago

(3x+2)∧2=9 how do i solve this in the square root property

Irina18 [472]

$(3x+2)^2=9 \\\\9x^2+12x+4-9=0\\\\9x^2+12x-5=0\\\\a=9,\ \ b=12, \ \ c=-5$

$x_{1}=\frac{-b-\sqrt{b^2-4ac}}{2a}=\frac{-12-\sqrt{12^2-4 \cdot9 \cdot (-5)}}{2 \cdot 9}=\frac{-12-\sqrt{144+180}}{18}=\\\\=\frac{-12-\sqrt{324}}{18}=\frac{-12-18}{18}=\frac{-30}{18}=-\frac{5}{3}\\\\x_{2}=\frac{-b+\sqrt{b^2-4ac}}{2a}=\frac{-12+\sqrt{12^2-4 \cdot9 \cdot (-5)}}{2 \cdot 9}=\frac{-12+18}{18}=\frac{6}{18}=\frac{1}{3} \\\\Answer: \ x=-\frac{5}{3}\ \ and \ \ x=\frac{1}{3}$

6 0

3 years ago

Help!! I will mark Brainliest!! Please show work! :) Thank You.

SSSSS [86.1K]

Answer:

The center is (20, 0.05) radius = 9

Step-by-step explanation:

The center is (20, 0.05) radius = 9

from the general form of the equation:

(x - h)^2 + (y - k)^2 = r^2

we see that r^2 = 81

so r = 9

3 0

3 years ago