All categories

3 years ago

15 points!!!! Answer is needed in 5 minutes plz help

Mathematics

1 answer:

Archy [21]3 years ago

3 0

The radii of the circle increases by 7.5 cm each ring: 7.5 cm, 15.0 cm, 22.5 cm, and 30.0 cm.
The area if the red target is the area of the largest circle minus the second to the largest circle plus the area of the third largest circle minus the area of the smaller circle
A=pi(30.0)^2 - pi(22.5)^2 + pi(15.0)^2- pi(7.5)^2
A=900pi-506.25pi+225pi-56.25pi
A=562.5pi is approximately 1767 cm^2

You might be interested in

sarah competes in a long jump competion. her first jump is 4.25m. her best jump is 12% more than this. however, her best jump is

maxonik [38]

Best jump=4.25+0.12(4.25)=4.76
best jump=75% of winning jump
Winning jump=4.76/75×100=6.35m

5 0

3 years ago

( 10.2 -1)+(5.2 48 -8)

never [62]

Answer:35

Step-by-step explanation:

6 0

4 years ago

Help please!! i’ll reward branliest, 50 points

Nina [5.8K]

Answer:

Madeline: y=1x+9

Issac: y=2x+1

x=8, y=17

Step-by-step explanation:

Solving for X:

Multiply Issac's by -1:

y= 1x+ 9

-y=-2x-1

Combine:

0=-x+8

Add x to both sides:

x=8

Solving for Y:

Since we already have x, we only need to input the x value into one of the formulas:

y=1(8)+9

Simplify parenthesis with multiplication:

y=8+9

Add:

y=17

If you feel unsure, check your work with both equations:

(17)=2(8)+1

17=16+1

17=17=Good

(17)=1(8)+9

17=8+9

17=17=Good

Please give a brainliest and a thx ;)

I hope this helps u :)

6 0

3 years ago

Determine the slope Y=7/1x+10

Alona [7]

Step-by-step explanation:

8 0

4 years ago

What is the measure of the other two angles?

nordsb [41]

Answer:

50° & 90°

Step-by-step explanation:

it's a right angle triangles, so one must be 90°

Interior angles in a triangle add up to 180.

180 - 90 - 40 = 50°

5 0

3 years ago