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3 years ago

I need help pls help

Mathematics

2 answers:

emmasim [6.3K]3 years ago

6 0

Answer:

WARNING:

Step-by-step explanation:

YOU WILL BE BANNED nah jk but how is this supposed to be answered?

Snezhnost [94]3 years ago

3 0

Answer:

Step-by-step explanation:

hope this helps

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PLEASE HELP ASAP!!!!!!!!

steposvetlana [31]

Answer:

4.6.

Step-by-step explanation:

The rocket hits the ground when h(t) = 0. So

$-16t^{2} + 72t + 7 = 0$

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this question:

$-16t^{2} + 72t + 7 = 0$

$a = -16, b = 72, c = 7$

Then

$\bigtriangleup = 72^{2} - 4*(-16)*7 = 5632$

$t_{1} = \frac{-72 + \sqrt{5632}}{2*(-16)} = -0.1$

$t_{2} = \frac{-72 - \sqrt{5632}}{2*(-16)} = 4.6$

Time is a positive measure, so the answer is 4.6.

6 0

3 years ago

Somebody plzzzzzz help me on this

Andrej [43]

It is option D, "Line h has points on planes R, P, and T".

7 0

3 years ago

Please help

nikdorinn [45]

Answer:

Step-by-step explanation:

given

V = $\frac{1}{3}$ bh

multiply both sides by 3 to eliminate the fraction

3V = bh ( divide both sides by h )

b = $\frac{3V}{h}$ → D

5 0

4 years ago

1. The students at Candy High School are surveying the student body. They are surveying 75 students from each grade level: fresh

san4es73 [151]

Answer:

It would be A

Step-by-step explanation:

This is because the population is the amount of people in the school, in this question it would be the students.

Hence the population is the 75 students from each grade level.

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4 years ago

Can someone gift me the battle pass on fornite my user Emily_mari90

olga nikolaevna [1]

Answer:maybe

Step-by-step explanation:

took it

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3 years ago