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Aleksandr-060686 [28]
3 years ago
13

John took 45 minutes to bicycle to his grandmother's house, a total of four kilometers. what was his velocity in km/hr?

Mathematics
1 answer:
Marina CMI [18]3 years ago
8 0
 I think 5.3 km/hr 
I hope this help
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Both circle A and circle B have a central angle measuring 140°. The ratio of the radius of circle A to the radius of circle B is
beks73 [17]
Let 
rA--------> radius of the circle A
rB-------> radius of the circle B
LA------> <span>the length of the intercepted arc for circle A
</span>LB------> the length of the intercepted arc for circle B

we have that
rA/rB=2/3--------> rB/rA=3/2
LA=(3/4)<span>π
</span>
we know that
if <span>Both circle A and circle B have a central angle , the ratio of the radius of circle A to the radius of circle B is equals to the ratio of the length of circle A to the length of circle B
</span>rA/rB=LA/LB--------> LB=LA*rB/rA-----> [(3/4)π*3/2]----> 9/8π

the answer is
the length of the intercepted arc for circle B is 9/8π
3 0
3 years ago
What is the measure for angle f
nordsb [41]

what do you mean? what is the measure of f? there isnt a problem or graph that i can see to go off of

8 0
3 years ago
Help!!!!!!!!!!!!!!!!!!!!!!!!
Savatey [412]
Diameter is 9 inch so the radius is 9/2=4.5inch
Part A: 2πr=28.26inch
π=28.26/(2r)
π=28.26/(2*4.5)=3.14
Part B: πr^2=63.585inch
π=63.585inch/(4.5inch)^2
π=3.139753086 
Part C: Both of the answers are correct but Part B is more percise because it has more significant figures.
6 0
3 years ago
Read 2 more answers
What is the standard form of the<br> number below?
olasank [31]

Answer:

Where is the number??????

3 0
4 years ago
135.99 rounded to two significant figures
gladu [14]

Answer:

1.3×10^1

Step-by-step explanation:

For this, you need to use scientific notation

First, let's round up the decimal points

135.99 = ~ 136

1.3 ×.10^1

5 0
3 years ago
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