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Ivenika [448]
3 years ago
13

I need the answer for my homework

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
7 0

Answer:

45 for 5 and 34 for 6.

Step-by-step explanation:

You are just subtracting by 11.

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A rocket is launched from a tower. The height of the rocket, y in feet, is related to the
worty [1.4K]

Answer:

The maximum height is 1087.06 ft.

Step-by-step explanation:

We need to take the derivative of the equation and set it to 0.

y' = - 32x + 254 = 0\\32x = 254\\x = 7.9375

We now can plug x = 7.9375 into the original equation.

y=-16x^{2} +254x+79\\y=-16(7.9375)^{2}+254(7.9375)+79\\y=1087.06 ft

7 0
3 years ago
Read 2 more answers
A line passes through the points (1, 4) and (5, 8). What Is the linear equation of this line?​
natali 33 [55]

Answer liner

Step-by-step explanation:

8 0
2 years ago
A train goes twice as fast downhill as it can go uphill, and 2/3 feet as fast uphill as it can go on level ground. If it goes 12
Yuri [45]

Answer:

0.5hrs

Step-by-step explanation:

Let the speed downhill be x,

Speed uphill is 0.5x. We are told than speed uphill is \frac{2}{3} the speed on flat ground. Therefore the speed on level ground will be \frac{0.5x}{2/3}=0.75x.

From this info, we can obtain the actual speed,v_g on level ground as:

x=120m/h\\0.75x=v_g\\\\\therefore v_g=\frac{0.75x \times 120m/h}{x}\\v_g=90m/h

speed, distance and time have the relation s=d/t so to obtain time to cover 45miles:

t=d/s\\=45/90\\=0.5h

Hence it takes 0.5hrs to cover 45miles on flat ground.

4 0
3 years ago
Consider the following figure where l1 and l2 are parallel and cut by transversals g1
vampirchik [111]

Answer:

helppppp

Step-by-step explanation:

3 0
3 years ago
X/5 -8=4 find the value of x
elena-s [515]

Answer:

x=60

Step-by-step explanation:

I'm assuming you meant this: (x/5)-8=4

In which case you would add 8 to both sides to get rid of the 8 on the left (your goal is to get x by itself so you want to move the numbers on the x side to the other side of the equal sign)

(x/5)=12

Then you would multiply 5 on both sides to get rid of the fraction with the 5 on the bottom on the left side.

x=60

There's your answer.

6 0
3 years ago
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