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nirvana33 [79]
3 years ago
7

What does a “3-mile” radius mean? What does it look like, and how large is it?

Mathematics
1 answer:
Vesnalui [34]3 years ago
5 0

Answer:

the radius is halfway across the circle, while diameter is all the way across. for reference, a three mile radius would be equivalent to 52.8 football fields

Step-by-step explanation:

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In a hydraulic lift, a 1400 N force is applied to a 0.5 m2 piston. Calculate the minimum surface area of the large piston to lif
dexar [7]

Answer:

1.8m^2 approx

Step-by-step explanation:

Given data

P1= 1400N

A1=0.5m^2

P2=5000 N

A2=??

Let us apply the formula to calculate the Area A2

P1/A1= P2/A2

substitute

1400/0.5= 5000/A2

cross multiply

1400*A2= 5000*0.5

1400*A2= 2500

A2= 2500/1400

A2= 1.78

Hence the Area is 1.8m^2 approx

5 0
2 years ago
Calvin has $8.80 in pennies and nickels. If there are twice as many nickels as pennies, how many pennies does Calvin have? How m
Ray Of Light [21]

Let X = the number of pennies.

The number of nickels would be 2X

A penny is 0.01 and a nickel is 0.05

Now you have:

0.01x + 2(0.05x) = 8.80

Simplify:

0.01x + 0.10x = 8.80

Combine like terms:

0.11x = 8.80

Divide both sides by 0.11:

x = 8.80 / 0.11

x = 80

Pennies = X = 80 total pennies.

Nickels = 2x = 2 *80 = 160 nickels.

7 0
2 years ago
How many 2-digit numbers are multiples of either 5 or 7?
Svet_ta [14]

Answer:

46

Step-by-step explanation:

he count of numbers from 1 to n that are divisible by k is integer part of (n/k).

So the numbers from 1 to 99 divisible by 3 is int(99/3) = 33

Those divisible by 5: int(99/5) = 19

From the sum of those two, subtract those divisible by 15 = int(99/15) = 6

That gives you 33+19-6 = 46.

Now subtract the 1 digit numbers: 3, 5, 6, 9, or four of them

46 - 4 = 42 is the answer.

4 0
3 years ago
Read 2 more answers
In 3x² - x + 5 = 0, what is the quadratic term
Anastaziya [24]

Step-by-step explanation:

Quadratic term = Coefficient of x^2 term = 3.

6 0
3 years ago
Read 2 more answers
Given the function f(x) = 4x, which statements are true? Check all that apply. The additive inverse is –4x. The additive inverse
lisabon 2012 [21]

Hey there! I'm happy to help!

The additive inverse is when you switch the sign. The additive inverse of 4x is -4x. A number added to its additive inverse is equal to 0.

The multiplicative inverse is also known as the reciprocal, and it is where you flip the numerator and denominator. If you multiply a number by its reciprocal, it equals 1. The multiplicative inverse 4x would be 1/4x.

The additive inverse is -4x.

The multiplicative inverse is 1/4x.

Have a wonderful day! :D

3 0
3 years ago
Read 2 more answers
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