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Llana [10]
3 years ago
13

HELP ASAP i dont know how to do any of this

Mathematics
1 answer:
nadya68 [22]3 years ago
6 0

Answer:

Step-by-step explanation:

Circumference is= to diameter * Pi

6\pi = 6*3.14=18.84\\15\pi=15*3.14=47.1

For the ones that are radius, double it, then pi

21*2\pi = 42\pi =42*3.14=131.88\\6.7*2\pi=13.4\pi =13.4*3.14=47.076

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What would a proper answer be to this question
Musya8 [376]
I cant help you there m8 the I'm not able to see the problem I'm sorry.
5 0
3 years ago
At 9:00 on Saturday morning, two bicyclists heading in opposite directions pass each other on a bicycle path.The bicyclist headi
gizmo_the_mogwai [7]
----------------------------------------------------------------------------------------------
Find the duration
----------------------------------------------------------------------------------------------
Time : 9:00am to 10:15am 
Duration: 1hour 15 mins or 1.25hours

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Find difference in distance travelled between the two cyclists.
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Difference in speed = 6km/h
1 hour = 6 km
1.25 hours = 7.5km

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Find the distance the cyclist traveled
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42.5 - 7.5 = 35km
35km ÷ 2 = 17.5km

The slower cyclist traveled 17.5 km in the 1.25 hours

17.5 + 7.5 = 25 km

The faster cyclist traveled 25km in the 1.25 hours

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Find the speed of the slower cyclist
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1.25 hour = 17.5 km
1 hour = 17.25 ÷ 1.25
1 hour = 14km

The cyclist was traveling at 14km/h

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Find the speed of the faster cyclist
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1.25 hour = 25km
1 hour = 25 ÷ 1.25
1hour = 20 km

The cyclist was traveling at 20km/hour

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Answer: The speed were 14km/h and 20 km/h
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8 0
3 years ago
Read 2 more answers
Simplify -3(2x-7) + 5(4x-8).
Ipatiy [6.2K]

Answer:

14x-19

Step-by-step explanation: Now can someone answer my question look at my page

8 0
3 years ago
How do you solve<br> -6n-20=-2n+4 (1-3n)
DedPeter [7]
-6n-20=-2n+4-12n
-6n-20=-14n+4
+6n       +6n
-20=-8n+4
-4          -4
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n=-3
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3 0
3 years ago
Can you guys help me with this?
Ghella [55]
F(x)=2x^2-x-6
Factoring:
f(x)=2(2x^2-x-6)/2=(2^2x^2-2x-12)/2=[(2x)^2-(2x)-12]/2
f(x)=(2x-4)(2x+3)/2=(2x/2-4/2)(2x+3)→f(x)=(x-2)(2x+3)

g(x)=x^2-4
Factoring
g(x)=[sqrt(x^2)-sqrt(4)][sqrt(x^2)+sqrt(4)]
g(x)=(x-2)(x+2)

f(x)/g(x)=[(x-2)(2x+3)] / [(x-2)(x+2)
Simplifying:
f(x)/g(x)=(2x+3)/(x+2)

Answer: Third Option (2x+3)/(x+2)
7 0
3 years ago
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