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4 years ago

HELPPPPPPP!!!!!!!!!!!!!

Mathematics

2 answers:

marshall27 [118]4 years ago

8 0

Calculate the area of the entire circle first.

A = 3.15 (r) ^2

A = 3.15 (2.25) ^2

Now calculate the area of the white circle

Take the radius - 1.5 to calculate the radius of the white circle

A = 3.15 (.75)^2

Now subtract your two answers

Sonbull [250]4 years ago

4 0

14.23 is your answer!!!!!!!

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Henry's brother is bigger and now his crib must be lowered. Once it's lowered, the m <2 is 30°. What are the rest of the angl

myrzilka [38]

In this problem, you there are only 2 different sets of measurements.

Angles 1, 2, 7, 8 are all the 30 degree angles. They are alternating interior angles of parallel lines cut by transverals.

Angles 3, 4, 5, 6 would be 150 degrees, because they are supplementary (add to 180) with the adjacent angles.

4 0

4 years ago

One hundred sixty people were surveyed and asked if they believed in UFOs, ghosts, and Bigfoot.

HACTEHA [7]

Answer:

Number of people surveyed believed in at least one of these things = 83

Step-by-step explanation:

Given,

Total number of people, n(T) = 160

number of people believe in UFOs, n(U) = 42

number of people believe in ghost, n(G) = 45

number of people believe in Bigfoot, n(B) =21

number of people believe in UFOs and ghost, n(U ∩ G) = 11

number of people believe in Bigfoot and ghost, n(B ∩ G) = 6

number of people believe in UFOs and Bigfoot, n(U ∩ B) = 4

number of people who believe in all, n(U ∩ G ∩ B) = 2

We have asked to draw the Venn diagram and to calculate the number people surveyed believed in at least one of these things .

So, according to Venn diagram,

Number of people surveyed believed in at least one of these things = 25+11+4+2+26+9+6 = 83

Number of people surveyed believed in at least one of these things = 83

5 0

3 years ago

Is median a measure of center or a measure of variation

Marianna [84]

Answer:

Step-by-step explanation:

7 0

2 years ago

Lucas and William are playing a video game and they have scored a total of 20,000 points. Lucas scored 1000 more than Williams.

const2013 [10]

Answer:

Hey there!

The system can be written as

l+w=20000

w+1000=l

Let me know if this helps :)

8 0

3 years ago

Which of the following values would complete the ordered pair if the point is on the graph of f(x) = -2x + 3?

EastWind [94]

-2/1
+3
idk if this was what you needed but this is a way to put it on the graph

5 0

3 years ago