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pantera1 [17]
3 years ago
10

The area of a circular place is 45 square inches.estimate the radius to the nearest integer

Mathematics
1 answer:
geniusboy [140]3 years ago
7 0
A = π*r^2
r = √(A/π) = √(45/π) ≈ 3.78

The radius is approximately 4 inches.
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A. a triangle with one right angle and two congruent sides​
Sonbull [250]

Answer:

is an isosceles right triangle, angles 45, 45, & 90 degrees

Step-by-step explanation:

7 0
2 years ago
16 larger than the product of a and b
leva [86]
A(b)+16 = 16 larger than the product of a and b.
7 0
2 years ago
Read 2 more answers
A circle is centered at the point (-3, 2) and passes through the point (1, 5). The radius of the circle is ______ units. The poi
nalin [4]
Circle formula
(x-h)^2+(y-k)^2=r^2 where (h,k) is the center
and r=radius

to find the radius
we are given one of the points and the center
distnace from them is the radius
distance formula
D=\sqrt{(x2-x1)^{2}+(y2-y1)^{2}}
points (-3,2) and (1,5)
D=\sqrt{(1-(-3))^{2}+(5-2)^{2}}
D=\sqrt{(4)^{2}+(3)^{2}}
D=\sqrt{16+9}
D=\sqrt{25}
D=5

center is -3,2
r=5
input
(x-(-3))^2+(y-2)^2=5^2
(x+3)^2+(y-2)^2=25 is equation
radius =5
input -7 for x and solve for y
(-7+3)^2+(y-2)^2=25
(-4)^2+(y-2)^2=25
16+(y-2)^2=25
minus 16
(y-2)^2=9
sqqrt
y-2=+/-3
add 2
y=2+/-3
y=5 or -1

the point (-7,5) and (7,-1) lie on this circle



radius=5 units
the points (-7,5) and (-7,1) lie on this circle

3 0
3 years ago
Please help me
iVinArrow [24]

Answer:

i think 4 th option

if u want to verify just substitute (4,-2)

8 0
3 years ago
-129 = -48 - n <br> Thank you
Flauer [41]

−129=−48−n

Simplify:

−129=−48+−n

Flip the equation.

−n−48=−129

Add 48 to both sides.

−n−48+48=−129+48

−n=−81

Divide both sides by -1.

−n/−1  =  −81/−1

n=81


3 0
3 years ago
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