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xxMikexx [17]
3 years ago
7

Find the circumference

Mathematics
1 answer:
My name is Ann [436]3 years ago
3 0

Answer:

circumference:

2 × 3.14 × 5.8m = the circumference ** (use your calculator here, ill die if I in do this)

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Bryan has quarters and nickels in his piggy bank. He has three times as many nickels as he has quarters. If the total value of t
sleet_krkn [62]

Answer:

90

Step-by-step explanation:

Quarters , q = 25 cent

Nickel, n = 5 cent

3 times as many nickels as quarters;

n = 3q

Total value of coins = $12

n + q = $12

0.05n + 0.25q = 12

0.05(3q) + 0.25q = 12

0.15q + 0.25q = 12

0.40q = 12

q = 12 / 0.40

q = 30

n = 3q

n = 3(30)

n = 90

90 nickels

3 0
3 years ago
Help please lost on this question
bearhunter [10]

Answer:

First one is 6

Second one is 4

Step-by-step explanation:

Right on egg

4 0
3 years ago
(Sorry if u guys get annoyed with some of me answer's sometimes there the same Lol but with diff number's and problems)
Likurg_2 [28]

Answer:

E

Step-by-step explanation:

71 is a prime numberrrrrrr

6 0
3 years ago
Read 2 more answers
Solve for x by using log. Rounded to hundredth. <br><br> <img src="https://tex.z-dn.net/?f=4%5E%7B2x-5%7D%20%3D6%5E%7B-x%2B1%7D"
wel

Answer: x=1.91

Step-by-step explanation:

Given the expression 4^{2x-5} =6^{-x+1}, apply logarithm to both sides. Then:

log(4)^{2x-5} =log(6)^{-x+1}

Remembert that according the the properties of logarithms:

log(a)^n=nlog(a)

Then:

(2x-5)log(4)=(-x+1)log(6)

Appy distributive property and solve for "x":

2xlog(4)-5log(4)=-xlog(6)+log(6)\\2xlog(4)+xlog(6)=log(6)+5log(4)\\x(2log(4)+log(6))=log(6)+5log(4)\\\\x=\frac{log(6)+5log(4)}{2log(4)+log(6)}\\\\x=1.91

6 0
4 years ago
Read 2 more answers
a truck traveled 60 km per hour the first hour, 45 miles per hour as the next 30 minutes and 50 km per hour in next 45 minutes w
-BARSIC- [3]
Answer: 
134 kilometers or 83 miles.

Explanation: 
First make all the units equivalent, so 
60 km/h = 60 km/h or 37.28 m/h
45 m/h = 72.42 km/h or 45 m/h
50 km/h = 50 km/h or 31.07 
So in one hour the car has gone 60 km or 37.28 m because they travel at 60km/h, which means they get that far in that amount of time. 
In half an hour they get half of 45 miles, because 45 m/h means they get 45 miles in 60 minutes, so in 30 minutes, or half and hour, they are getting half of 45 = 22.5 miles or 36.21 kilometers. 
In 45 minutes they are getting 75% of 50 km because 45 minutes is 75% of an hour. So 75% of 50 is 37.5 km or 23.3 miles. 

Add this all together and get:
Kilometers:
60 + 36.21 + 37.5 = 133.71 km
Miles:
37.28 + 22.5 + 23.3 = 83.08 m 
133.71 km = 83.08 So it checks out.
This is approximately 134 km or 83 miles.
4 0
3 years ago
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