3 years ago

How do I find the area?

1 answer:

7 0

Area: (base x height) divided by 2. (Or multiplied by 1/2.)
So the base of the triangle should be multiplied by the height of it. And divide the answer by two. :)

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A rocket is shot straight into the air at an initial velocity of 70 feet/second.

DanielleElmas [232]

Answer: 245 feet

Step-by-step explanation:

Given: The height of the rocket after t seconds is represented by the formula:

$h=70t-5t^2$

$\dfrac{dh}{dt}=70-10t$ [Differentiate both sides w.r.t. t]

Put

$\dfrac{dh}{dt}=0\\\\\Rightarrow\ 70-10t=0\\\\\Rightarrow\ t=\dfrac{70}{10}=7$

Also, $\dfrac{d^2h}{dt^2}=-10$ i.e. height is maximum at t=7.

Maximum height = $h=70(7)-5(7)^2 = 490 - 245= 245\text{ feet}$

Hence, the maximum height the rocket reaches = 245 feet.

3 0

3 years ago

The scale on a map is 1 cm for every 400 km. If Maine and Japan are 22 cm apart on the map, what is the distance between Maine a

hammer [34]

So if 1 cm = 400km
Then 22 cm = 400 × 22 = 8800

6 0

3 years ago

Read 2 more answers

It’s number 37. Thanks!

joja [24]

Answer: 11 and 12

Step-by-step explanation:

4 0

3 years ago

What is the answer please help

matrenka [14]

Answer:

Step-by-step explanation:

7 shows up twice

all other numbers show up only once.

6 0

3 years ago

Segment TQ is 26 units long. What is the length of QV?

devlian [24]

Answer:26 if both segments are congruent

Step-by-step explanation: if both segments are congruent then TQ=QV

7 0

3 years ago