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sleet_krkn [62]
3 years ago
14

What is the value of y?

Mathematics
1 answer:
zubka84 [21]3 years ago
7 0

Answer:

y = 40

Step-by-step explanation:

The sum of the angles of a triangle are 180 degrees

y+10 + 2y +50 = 180

3y+60 = 180

Subtract 60 from each side

3y+60-60 = 180-60

3y = 120

Divide each side by 3

3y/3 = 120/3

y = 40

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A neon light flashes five times every 10 seconds. Show that the light flashes 43 200 times in one day.
11Alexandr11 [23.1K]

1 day = 24 hours

1 hour = 60 minutes

1 minute = 60 seconds

60 seconds x 60 minutes = 3,600 seconds per hour

3,600 seconds per hour x 24 hours = 86,400 seconds per day.

The light flashes 5 times every 10 seconds:

5 flashes / 10 seconds = 1 flash every 2 seconds

86,400 seconds / 2 seconds = 43,200 flashes per day.

4 0
2 years ago
Find the average rate of change of the function from x=1 to x=2.<br><br><br><br> f(x)=−14/x^2
Irina-Kira [14]

Answer:

The average rate of change of the function from x=1 to x=2 will be: 10.5                

Step-by-step explanation:

Given the function

f\left(x\right)=-\frac{14}{x^2}

at x₁ = 1,

f(x₁) = f(1) =  -14/(1)² = -14/1 = -14

at x₂ = 2,

f(x₂) = f(2) = -14/(2)² = -14/(4) = -3.5

Using the formula to determine the average rate of change at which the total cost increases will be:

Average rate of change = [f(x₂) - f(x₁)] / [ x₂ - x₁]

                                        = [-3.5 - (-14)] / [2 - 1]

                                        = [-3.5 + 14] / [1]

                                        = 10.5 / 1

                                        = 10.5

Therefore, the average rate of change of the function from x=1 to x=2 will be: 10.5                      

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%7B75%7D%5E%7B2%7D%20%2B%2025%20-%20750" id="TexFormula1" title=" {75}^{2} + 25 - 750" alt=
frez [133]
your answer is 4900
3 0
3 years ago
A bike path is 6 3/4 miles long. What whole number is closest to 6 3/4?
Naddik [55]
It'll be 7 because 3/4 is greater than 1/2 so you round it up.
3 0
3 years ago
Gino is buying wood screws at the corner hardware store. The table shows different numbers of bags of screws and their correspon
Murljashka [212]
Its being mutilplied by 5 
x=5 

3 0
3 years ago
Read 2 more answers
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