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mixas84 [53]
2 years ago
12

Select all numbers that are prime. 10 16 20 25 23

Mathematics
2 answers:
ira [324]2 years ago
7 0

Answer:

23 is the only prime number.

Step-by-step explanation:  A prime number can only be divided by 1 and itself, while composite can be divided by more then 2 numbers.

creativ13 [48]2 years ago
3 0

Answer:

Only 23

Step-by-step explanation:

Prime numbers are numbers that cant be divided evenly

10 can be 5 and 2

16 can be 4 and 4

20 can be 4 and 5

25 can be 5 and 5

but there is even number for 23

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I cant see the question.
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3 years ago
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The height H of an ball that is thrown straight upward from an initial position 3 feet off the ground with initial velocity of 9
mariarad [96]

Answer:

The ball will be 84 feet above the ground 1.125 seconds and 4.5 seconds after launch.

Step-by-step explanation:

Statement is incorrect. Correct form is presented below:

<em>The height </em>h(t)<em> of an ball that is thrown straight upward from an initial position 3 feet off the ground with initial velocity of 90 feet per second is given by equation </em>h(t) = 3 +90\cdot t -16\cdot t^{2}<em>, where </em>t<em> is time in seconds. After how many seconds will the ball be 84 feet above the ground. </em>

We equalize the kinematic formula to 84 feet and solve the resulting second-order polynomial by Quadratic Formula to determine the instants associated with such height:

3+90\cdot t -16\cdot t^{2} = 84

16\cdot t^{2}-90\cdot t +81 = 0 (1)

By Quadratic Formula:

t_{1,2} = \frac{90\pm \sqrt{(-90)^{2}-4\cdot (16)\cdot (81)}}{2\cdot (16)}

t_{1} = 4.5\,s, t_{2} = 1.125\,s

The ball will be 84 feet above the ground 1.125 seconds and 4.5 seconds after launch.

3 0
3 years ago
Find the percent of increase from 1.5 inches to 6 inches.
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Since 6/1.5 is 4. It increased 400%.
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3 years ago
Mr.anson has $38 in his wallet what is the least number of bills he can have
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Answer:

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Step-by-step explanation:

5 0
3 years ago
A box of cereal states that there are 75 calories in a 34-cup serving. What is the unit rate for calories per cup? How many calo
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There are 400 calories in 4 cups of cereal.
8 0
3 years ago
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