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Vladimir [108]
3 years ago
14

They are Both math and science questions, I need an answer ASAP!

Mathematics
1 answer:
mart [117]3 years ago
5 0
What grade is this for
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A section of ground measures 1.5 cubic meters and contains 0.78 gram of gold. What is the amount of gold per cubic meter? Enter
Marta_Voda [28]
To find the gold per cubic meter you have to divide the amount of gold by the size of the area. So you would do .78/1.5 which would give you .52g/m3
3 0
3 years ago
If the measure of angle ACB is 65 degrees, find the measure of angle BCD
jolli1 [7]

Answer:

the answer is 25

Step-by-step explanation:

you take 65 and add 90 to it because there is an angle that is 90 and you should get 115 then you take 115 and subtract it from 180. and you will get 25 and 25 is your answer.

hope this helped!

p.s it would be cool if you gave me brainliest.

6 0
3 years ago
The height h, in feet of a model rocket t seconds after launch is given
Illusion [34]

Answer:

h_max = 324.09 ft

Step-by-step explanation:

The correct equation is;

h = 245t - 16t²

We are told that as the rocket descends, it deploys

a recovery parachute when it reaches 325 feet above the ground.

Thus;

245t - 16t² = 325

Thus;

16t² - 245t + 325 = 0

Using quadratic formula, we have the roots as;

t = 1.47s or 13.85s

We will pick the higher value.

Thus;

Maximum height will occur at t = 13.85 s

Thus, plugging in 13.85 for t into h = 245t - 16t², we have;

h_max = 245(13.85) - 16(13.85)²

h_max = 324.09 ft

7 0
3 years ago
Caroline has 4 green cards, 3 red cars, 3 orange cards, and 1 gold card. if she discards the gold card, what percent of her rema
I am Lyosha [343]
3 reds in the 10 remaining cards
so that is 30% are red
3 0
3 years ago
Which unit would you use to measure the weight of a car <br> A. mg <br> B. kg <br> C. g<br> D. km
kobusy [5.1K]

Answer:

A. Mg

Step-by-step explanation:

Brainliest plezzzzzzzzz

4 0
3 years ago
Read 2 more answers
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