The circles below is centered at the point (4,3) and has a radius of length 8. Whats its equation?

Answers

Answer 1

Answer: $centered =(x_(o),y_(o))= (4,3) \n radius : \ r= 8 \n \n General \ equation \ for \ circle: \n \n (x- x_(o) )^2+(y- y_(o) )^2 = r^2 \n \n(x- 4 )^2+(y- 3 )^2 = 8^2 \n \n(x- 4 )^2+(y- 3 )^2 = 64$

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There are 18 students in Mrs. Lynn's first grade class. Eight of her students are boys. What is the ratio of girls to boys?

Answers

10:8 factors down to 5:4 (girls:boys)

the ratio is 10 girls to 8 boys

Petra throws a ball up with an initial vertical velocity of 35 ft/s from a platform that is at ground level.How long will the ball be in the air?

Answers

The equation used to solve this problem is this:
H(t) = -16t^2 +vt + s
Where,
H(t) is the distance of the ball from the ground in feet,
t is the time in seconds,
v is the initial velocity of the ball as it is thrown up in feet/sec,
s is the distance of the ball from the ground when it was thrown in feet

Plugging in the given values,
0 = 16 t^2 + 35t + 0
This is a quadratic equation and the roots are:
0 and 2.19

ANSWER: 2.19 SECONDS

The equation used to solve this problem is this:

H(t) = -16t^2 +vt + s

Where,

H(t) is the distance of the ball from the ground in feet,

t is the time in seconds,

v is the initial velocity of the ball as it is thrown up in feet/sec,

s is the distance of the ball from the ground when it was thrown in feet

Plugging in the given values,

0 = 16 t^2 + 35t + 0

This is a quadratic equation and the roots are:

0 and 2.19

answer: 2.19 seconds

how many solutions does the graph above show?
a. one
b. none
c. Infinite

Answers

Answer:

None

Step-by-step explanation:

I said this because i usually don't find any solutions for graphs until i find out that there are infinite or one

b. no solution

explain: if they are parallel, there are no solutions

What is something times something to make 576

Answers

What is something times something to make 576? Answer: 24*24=576

288 x 2 works i think, it's simple

Que significa ^ en matemáticas

Answers

Answer:Significa que esta elevado a tal numero. EJ5^ 2 (cinco al cuadrado)

Anyone who really good in math please help me 1. A hard candy has a radius of 9 mm. The candy has a spherical soft center with a radius of 6 mm, with a hard shell surrounding it.

What is the volume of the hard shell?
Use 3.14 to approximate pi and round the answer to two decimal places.

_______mm3

2.Which container holds the most?

A.
cylinder with radius 8 in. and height 10 in.

B.
sphere with radius 7 in.

C.
cone with radius 10 in. and height 20 in.

3.What is the volume of a cone that has a radius of 4 cm and a height of 9 cm? Use 3.14 to approximate pi and round the answer to two decimal places if necessary.
_______cm3

Answers

A] First you want to work out the volume of both the total candy and the soft shell. The formula for the volume of a sphere is πr cubed x 4/3. The candy has a 9mm radius, so let's substitute that into the equation. π x 9 cubed x 4/3. Nine cubed is, of course, 729, so the volume for the candy is 3052.08mm squared.

Next, the volume of the soft shell. Repeat the earlier steps with the radius of 6mm ( π x 6 cubed x 4/3 ) and you get 904.32mm. Now you substitute that from the total volume:3052.08-904.32=2147.76mm cubed *units are important*

B] A cylinder is a prism, so first work out the face and multiply by its depth for the area. Area of a circle = πr squared so 3.14 x 64 = 200.97 multiplied by 10 gives you 2009.7 inches cubed.I've already given the steps to working out a spheres volume : 1436.03 cubed inches.
Formula for the volume of a cone: 1/3 x area of base x heightCircle base = 314 inches. Volume of cone = 2093.34 cubed inchesThe answer = the cone aka C.

3] area of a cone is 1/3 x area of base x heightArea of circular base = pi x radius squared = 3.14 x 16 = 50.241/3 x 50.24 x 9 = 150.72cm cubed.Sorry if this doesn't have proper paragraphs, I've been using the mobile website via tablet, hope I helped.

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