2 years ago

Is 30 a prime number , composite number, or neither?

1 answer:

4 0

30 is a composite number because it can be evenly divided by number other than 30 and 1. (i.e: 30/6=5, 30/5=6, 30/10=3).

An example of prime number would be 5, since it can only be evenly divided by 5 and 1.

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3 years ago

Christine runs 4 miles in 30 minutes. At the same rate, how many miles would she run in 48 minutes?

zavuch27 [327]

Answer:

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Step-by-step explanation:

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2 years ago

9. Plot the points A (-2,3), B(2,-3), C(2,3) ,D(-2,3) join the points and find the distance between each point.

pav-90 [236]

Answer:

AB=7.21 unit

BC=6 unit

CD=7.21 unit

AD= 6 unit

AC=4 unit

BD=4 unit

Step-by-step explanation:

Coordinates of A =(-2,3)

Coordinates of B = (2,-3)

Coordinates of C = (2,3)

Coordinates of D =(-2,-3)

Distance formula : $d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$A=(x_1,y_1)=(-2,3)\\B=(x_2,y_2)=(2,-3)\\AB = \sqrt{(2+2)^2+(-3-3)^2}$

AB=7.21 unit

$B=(x_1,y_1)=(2,-3)\\C=(x_2,y_2)=(2,3)\\BC=\sqrt{(2-2)^2+(3+3)^2}$

BC=6

$C=(x_1,y_1)=(2,3)\\D=(x_2,y_2)=(-2,-3)\\CD=\sqrt{(-2-2)^2+(-3-3)^2}$

CD=7.21

$A=(x_1,y_1)=(-2,3)\\D=(x_2,y_2)=(-2,-3)\\AD=\sqrt{(-2+2)^2+(-3-3)^2}$

AD=6

$A=(x_1,y_1)=(-2,3)\\C=(x_2,y_2)=(2,3)$

$AC=\sqrt{(2+2)^2+(3-3)^2}$

AC=4

$B=(x_1,y_1)=(2,-3)\\D=(x_2,y_2)=(-2,-3)$

BD= $\sqrt{(-2-2)^2+(-3+3)^2}$

BD=4

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2 years ago

If i was o dived 3 by 2 what woud it be

Karolina [17]

Answer:

it would be zero

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Two trains leave stations 442 miles apart at the same time and travel toward each other. One train travels at 95 miles per hour

Brrunno [24]

$(75 + 95) \times x = 442$

$x = \frac{442}{75 + 95} = 2.6$

so it takes 2.6 of hours which is the same as 2 hours and 36 minutes for them to reach eachother.

6 0

3 years ago