How to find how long it will take a rocket to reach a maximum height

Mathematics

1 answer:

Anton [14]3 years ago

5 0

Answer:

the rocket will reach its maximum height after 4 seconds.

Step-by-step explanation:

The first term ( -4.9(t-4)^2 ) can never be positive, so the maximum height of 80 meters is achieved when t = 4.

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Josef said the he could represent the amount of money he made last week with the expression: 24d+8n. Write a problem about the m

Doss [256]

Answer: what do you mean by a word problem?

Step-by-step explanation: 24 per hour = n times 10 hours = d so, 24(10)= $240

The second part of the equation -

8 hours = d times $20 per hour = n so, 8(20) = $160

$240+$160=$400 last week

5 0

3 years ago

Please do the area and perimeter for both questions! And if u can please explain how! Thank you

KiRa [710]

Question 1 - You need to split the L shape into 2 shapes.

6mm x 2mm = 12mm

and

5mm x 2mm = 10mm

add 12mm and 10mm
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6 0

3 years ago

Read 2 more answers

In the equation 3/4y+1/2=3 1/4, the fractional coefficient is what

AURORKA [14]

Answer:

$\frac{3}{4}$

Step-by-step explanation:

Given equation: $\frac{3}{4}y + \frac{1}{2} = 3 \frac{1}{4}$

In the given equation, $\frac{3}{4}$ is a coefficient and y is the variable.

coefficient is a constant number or quantity multiplied to a variable in an algebric expression. Like in the above equation $\frac{3}{4}$ is a coefficient and y is the variable. We use term variable for y as its value may vary or change. If variable does not have any coefficient in any expression then in that case, we consider 1 as coefficient, for example: $x+4$ , here variable have 1 as coefficient.