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scoray [572]
3 years ago
6

Every winter I fly home to Michigan it takes five hours what is my average speed

Mathematics
2 answers:
nignag [31]3 years ago
6 0
Well you did not say how many miles you are from Michigan
denis23 [38]3 years ago
3 0
So to find speed, you divide your total distance by the time it took to travel.

3,900 ÷  5 = 780 

You are going at a speed of 780 units per hour. You could always simplify it to seconds by merely dividing your speed by 60. 


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Fred spent half his allowance on going to the movies he then washed the family car for six dollars he now has eleven dollars how
kotykmax [81]

Answer:

He gets $10 for his weekly allowance.

Step-by-step explanation:

Let x represent the amount that Fred gets for his allowance weekly.

Fred spent half his allowance on the movies. This means that the total amount that he spent on the movies is x/2. The amount that he is left with would be

x - x/2 = x/2

He washed the family car for six dollars. This means that the total amount that he is left with would be

x/2 + 6

if he now has eleven dollars, it means that

x/2 + 6 = 11

x/2 = 11 - 6 = 5

x = 2 × 5 = $10

4 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20express%20%5C%3A%20%20%5C%3A%20%5Csin%282x%29%20%20-%20%20%5Csqrt%7B3%7D%20%20%5Ccos%282x%2
gizmo_the_mogwai [7]

Answer:

α = π/3

γ = 2

x = -3π/4, -5π/12, π/4, 7π/12

Step-by-step explanation:

Easiest way to do this is in reverse.

γ sin(2x − α)

Angle sum/difference formula:

γ (cos α sin(2x) − sin α cos(2x))

Distribute:

γ cos α sin(2x) − γ sin α cos(2x)

Matching the coefficients:

γ cos α = 1

γ sin α = √3

Solve the system of equations.  Divide to eliminate γ:

tan α = √3

α is between 0 and π/2, so:

α = π/3

γ = 2

sin(2x) − √3 cos(2x) = 1

Using the identity from before:

2 sin(2x − π/3) = 1

Solving:

sin(2x − π/3) = 1/2

2x − π/3 = π/6 + 2kπ or 5π/6 + 2kπ

2x = π/2 + 2kπ or 7π/6 + 2kπ

x = π/4 + kπ or 7π/12 + kπ

x is between -π and π, so:

x = -3π/4, -5π/12, π/4, 7π/12

7 0
3 years ago
1. Which expression is equivalent to (y + 7) - (-8y + 14)?
zimovet [89]

Answer:

A

Step-by-step explanation:

(y + 7) - (-8y + 14) = y + 7 + 8y - 14 = 9y - 7

5 0
2 years ago
The distribution of reading scale scores in the 4th grade at Truman Elementary School was approximately normal with mean = 221 a
liraira [26]

Answer:

221

Step-by-step explanation:

3 0
3 years ago
Please help greatly appreciated :)
matrenka [14]

Step-by-step explanation:

we know ,

area of circle =πr^2

hence we get from the figure that the diameter of circle is 19 cm and we can find radius

r=d/2

r=18/2=9cm

area of semicircle =πr^2/2

area of Semi circle equals to =22*(9)^2/7/2

=127.2857143

3 0
3 years ago
Read 2 more answers
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