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VashaNatasha [74]
3 years ago
15

Evaluate: if x = 3 and y = 6 x(2x + x2 – 8y + 16)​

Mathematics
1 answer:
kumpel [21]3 years ago
3 0

Answer:

-60

Step-by-step explanation:

Og problem: x(2x + 2x - 8y + 16)

Substitution: 3(6 + 6 - 48 + 16)

Solve: 3(12 - 48 + 16)

3(-36 + 16)

3(-20) = -60

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Alona [7]

The business owner should be told to angle a spotlight mounted on the roof at the angle of =39°

<h3>Calculation of angle</h3>

The distance of the flagpole from the building = 55ft

The building has the height of = 45ft

The flagpole has the height of = 25ft

The angle can be calculated using the formula;

Tan θ = opposite/adjacent

Where opposite= 45ft

adjacent = 55ft

Tan θ = 45/55 = 0.82

θ = Tan–¹0.82

θ = 39°

Learn more about angles here:

brainly.com/question/25716982

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5 0
2 years ago
describe how the location of the vertex of the angle determines the process of finding the angle measures associated with that a
LekaFEV [45]

Answer:

k

Step-by-step explanation:

3 0
3 years ago
Problem 2.9 a runner completes the 200-meter dash with a time of 20.19 seconds. part a what was the runner's average speed in me
Elina [12.6K]

Answer:

Average speed = 9.91 m/s

Explanation :

Total distance covered by a runner = 200 m

Time taken to complete this distance = 20.19 sec

We need to find the average of runner speed in meter/sec

We use the speed,  distance, time formula

speed = \frac{distance}{time}

speed = \frac{200}{20.19}

Average speed = 9.91 m/s

that's the final answer.

I hope it will help you.



8 0
3 years ago
Larry spent 1/2 of his money on a camera and another 1/8 on a radio. the camera cost $120 more than the radio. how much money di
elena-s [515]
Let, his original money = x
It would be: x * 1/2 = 120 
x = 120 * 2
x = 240

In short, Your Answer would be $240

Hope this helps!
7 0
3 years ago
Read 2 more answers
There are 1560 students enrolled at greenwood middle school if 85% of these ride the bus how many does not ride the bus
loris [4]

Answer: 1326 students won't come to school

Step-by-step explanation:

All you have to do is find out 85% of 1560 which is 1326 students!

4 0
3 years ago
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