Please I don't understand help me

Mathematics

1 answer:

Murrr4er [49]2 years ago

6 0

Answer:

6.2 seconds

Step-by-step explanation:

To translate into math, the question is asking you "for what approximate t value does h = 0?" In order to solve, you can plug in 0 for h and solve for t.

0 = -16t^2 + 620

-620 = -16t^2

620 = 16t^2

38.75 = t^2

$\sqrt{38.75}$ = t

6.2 ~~ t (rounding to the nearest tenth)

Don't forget your units!

Let me know if you need anything explained in more detail; I'm happy to help.

You might be interested in

Please help will give brainliest :)

Black_prince [1.1K]

Answer:

68 is the perimeter

the answer would be 48.17

Step-by-step explanation:

to find the perimeter you have to add all the sides

8 0

2 years ago

How many yards long is John's new surfboard if it is 7 feet long

kow [346]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Find the 7th term of the geometric sequence whose common ratio is 1/3 and whose first term is 5.

wolverine [178]

Answer:

$t_7 =\frac{5}{729}$

Step-by-step explanation:

We are given that:

First term (a) = 5

common ratio (r) = $\frac{1}{3}$

The nth term of a geometric sequence is given as:

$t_n =ar^{n-1} \\\therefore t_7 =5\times \bigg(\frac{1}{3}\bigg) ^{7-1} \\\therefore t_7 =5\times \bigg(\frac{1}{3}\bigg) ^{6} \\\therefore t_7 =5\times \bigg(\frac{1}{3}\bigg) ^{6} \\\therefore t_7 =5\times \frac{1}{729}\\\\\huge\red{\boxed{\therefore t_7 =\frac{5}{729} }}$