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3 years ago

I am an odd number.

Mathematics

2 answers:

11111nata11111 [884]3 years ago

6 0

I'm pretty sure it's 75 because 15x5=75 and 7+5=12

Marina86 [1]3 years ago

4 0

Hello! To start you want to look for the multiples of 15, under 100. List these out and look for the multiple that when you add the digits together it makes 12.

Answer:
<span>The multiples of 15 under 100: 15,30,45,60,75,90
Sum of digits,
1+5 = 6
3+0 = 3
4+5 = 0
6+0 = 6
7+5 = 12
9+0 = 9

The number is 75

</span>

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Which cereal box deal has the best price per ounce?

DaniilM [7]

Answer:

$9.14 for 39 oz

Step-by-step explanation:

6.12/24 = 0.255 = 0.26

3.56/14 = 0.254 = 0.25

9.14/39 = 0.234 = 0.24

4.98/18 = 0.276 = 0.28

So,

$9.14 for 39 oz is the best price per ounce

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3 years ago

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Write 1,390,000,000 in scientific notation?

Reptile [31]

Answer:

1.39*10^9

Step-by-step explanation:

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3 years ago

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What are the endpoint coordinates for the mid segment of △PQR that is parallel to PQ?

diamong [38]

Answer:

So the end points of the mid segment are:

S $(-3.5,0.5)$

T $(-1,-0.5)$

Step-by-step explanation:

First of all we need to list the co-ordinates of the points of the triangle shown.

P $\rightarrow(-3,3)$

Q $\rightarrow(2,1)$

R $\rightarrow(-4,-2)$

We need to find mid segment of the triangle which is parallel to segment PQ. This would mean we need to find midpoints of segment PR and QR and then join the points to get mid segment.

Midpoint Formula:

$(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

Midpoint of PR:

S( $(\frac{-3+(-4)}{2},\frac{3+(-2)}{2})\\\\(\frac{-3-4}{2},\frac{3-2}{2})\\\\(\frac{-7}{2},\frac{1}{2} )$

S $(-3.5,0.5)$

Midpoint of QR:

T $(\frac{2+(-4)}{2},\frac{1+(-2)}{2})\\\\(\frac{2-4}{2},\frac{1-2}{2} )\\\\(\frac{-2}{2},\frac{-1}{2}$

T $(-1,-0.5)$

So the end points of the mid segment are:

S $(-3.5,0.5)$

T $(-1,-0.5)$

By mid segment theorem we know that the line joining midpoints of two sides of a triangle is parallel to the 3rd side.

∴ We know ST is parallel to PQ

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3 years ago

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A block of wood measures 4.5 inches by 7 inches. What is the volume of wood

Arada [10]

4.5 x 4.5 x 7 = 141.75 inches cubed

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4 years ago

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1. A baseball player hits a baseball into the air with an initial vertical velocity of 72 feet per second from a height of 3 fee

DiKsa [7]

Answer:

You actually do not ask anything here, so i will find the equation for the height and i will use it to find something useful, like the maximum height of the baseball.

For any object in a vertical motion, the only force acting on it is the gravitational force, so the acceleration of the object will be equal to g.

a(t) = -g

where the minus sign is because the gravitational acceleration pulls down.

For the velocity we can integrate over time, and get:

v(t) = -g*t + v0

Where v0 is the initial velocity, in this case v0 = 72 ft/s

v(t) = -g*t + 72ft/s

with this equation we can find the time in wich the height is maximum, we need to find the time where the velocity is 0.

-g*t + 72 = 0

t = 72/g

for the height we can integrate over time again:

h(t) = (-g/2)*t^2 + 72ft/s*t + h0

where h0 is the initial height, in this case h0 = 3ft

here we can also replace the value of g = 32ft/s^2

h(t) = (-16ft/s^2)*t^2 + 72ft/s*t + 3ft

Now we can evaluate this in the time that we previously find, t = 72/g = 72/32 = 2.25s

h(2.25s) = -16*2.25^2 + 72*2.25 + 3 = 85.08 feet

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4 years ago