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2 years ago

Which expression represents the perimeter of the rectangle below

Mathematics

1 answer:

-BARSIC- [3]2 years ago

6 0

Answer:

12+y+x+x+x+12+y+x = 24+2y+4x; which is A

Step-by-step explanation:

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A circle has a center of (5,-5) and goes through (6,-2). What is the radius?

Fittoniya [83]

Start with the equation of a circle whose center is at (h,k) and whose radius is r:

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

Substituting the given coordinates of the center:

(x-5)^2 + (y-[-5])^2 = r^2, or (x-5)^2 + (y+5)^2 = r^2

Substituding the given coordinates of a point (6,-2) on the circle:

(6-5)^2 + (-2+5)^2 = r^2

Simplifying:

1^2 + 3^2 = r^2, or 1 + 9 = r^2, or 10= r^2. Then r = sqrt(10).

6 0

3 years ago

g(x)=−20−3x h(x)=( 2 1 ) x Evaluate. (g\circ h) (-2)=(g∘h)(−2)=left parenthesis, g, circle, h, right parenthesis, left par

malfutka [58]

Answer:

ion

Step-by-step explanation:

6 0

3 years ago

GCF of 9ab^2 and 6bc^2

garik1379 [7]

The GCF is 3*b = 3b

Step-by-step explanation:

The GCF is the Greatest Common Factor which will divide all the numbers whose GCF it is.

To find the GCF, we factorize the polynomials first

So,

$9ab^2 = 3*3*a*b*b\\6bc^2=3*2*b*c*c$

We can see that only 3 and b are common in factors of both polynomials

So,

The GCF is 3*b = 3b

Keywords: GCF, Polynomials

Learn more about GCF at:

#LearnwithBrainly

6 0

3 years ago

Write the equation in standard form. y=4/7x+3

sdas [7]

Answer:

4x-7y = -21

Step-by-step explanation:

1. Move 4/7x to the other side

-4/7x+y=-3

2. Multiply both sides by -7

4x-7y=-21

3 0

3 years ago

Read 2 more answers

A water mill grinds corn to make cornmeal. The water wheel has a radius of 18 feet. The wheel is rotating at 8 revolutions per m

Genrish500 [490]

Answer:

904.9 feet per minute

Step-by-step explanation:

The Angular distance can be calculated using below expression

S= r θ ..............eqn(1)

Where

θ = angular distance travelled

r= Radius= radius of 18 feet

But angular distance can also be expressed as

θ = wt...................eqn(2)

w= angular speed= 8 rev per minute= (8 × 2π)

t= time

Velocity can also be expressed as

V= s/t............eqn(3)

Where

V= velocity

s= distance

t= time

Substitute eqn(2) into eqn(3)

V=( r θ)/ t................eqn(4)

Substitute eqn(2) into eqn(4)

V=( r w t)/ t

V= r w ..............eqn(5)

V= 18×(8 ×2π)

=288π

= 904.9 feet per minute

Hence, the linear speed, in feet per minute, of the water. is 904.9 feet per minute

6 0

3 years ago