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2 years ago

Plzzz helppp giving brainiest to the first one

Mathematics

2 answers:

Monica [59]2 years ago

8 0

Answer:

I’m smart UwU

Step-by-step explanation:

aniked [119]2 years ago

4 0

Answer:

Arsenic-74-is used to locate brain tumors. It has a half-life of 17.5 days. ... C. Find the amount remaining after 6 days from a 90-mg sample

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The price of an item has been reduced by <br> 45% <br> . The original price was <br> $17

Artist 52 [7]

Price is reduced by 45%. Which means that the new price is 55% of the original.
Therefore, (55/100)*17 = $9.35 =new price

8 0

4 years ago

40cm in 18mm as a ratio

galben [10]

The answer is 200:9 because the signs are not equal, you have convert one of them into one sign.
40cm=400cm
400mm:18mm
200mm:9mm

answer-200mm:9mm

6 0

3 years ago

1) A ball is dropped from a height of 50 feet. How long after it is dropped will it reach a height of 18 feet?

Nookie1986 [14]

Answer: 1.41 seconds

Step-by-step explanation:

The problem gives the initial velocity by saying "dropped." This indicates a velocity of zero. Acceleration can also be found because the object is in free fall. It would experience the acceleration of gravity. We can use the kinematic equation:

$(y_f-y_i)=V_it+\frac{1}{2}at^2$

The velocity term completely cancels because the object was dropped with an initial velocity of 0.

$(18-50)=\frac{1}{2} (32.17)t^2\\$

$-32=-16.085t^2\\t=\sqrt{1.989} =1.41s$

8 0

3 years ago

What is the LCD of 25,50, and 75 ?

Mariana [72]

The lcd of 25 50 and 75 is 150

7 0

4 years ago

Convert 3/10 to a decimal.

Mice21 [21]

Answer:

.30

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers