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4 years ago

The distance between (9,10 and (9,3)

Mathematics

1 answer:

spayn [35]4 years ago

4 0

Using the distance formula
d= square root of (x2-x1)^2+(y2-y1)^2

(9-9)^2+(10-3)^2
0^2+7^2
0+49
Square root of 49 is 7
d=7

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A bag of candy includes pieces with different colors as shown in the table.

zvonat [6]

Part A: About 0.21

We will put the wanted outcome (yellow pieces of candy) over the total number of possible outcomes (total pieces of candy).

$\frac{5}{3+6+5+2+8}$

$\frac{5}{24}$

About 0.21

Part B: About 50

First we will do the same as we did with the yellow pieces of candy, wanted outcomes over possible outcomes.

$\frac{6}{3+6+5+2+8}$

$\frac{6}{24}$

0.25

Now, we will multiply the total 200 pieces by 0.25 since 0.25 of them are estimated to be green.

200 * 0.25 = 50

I estimate about 50 of the pieces to be green.

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2 years ago

Find the distance between the points

Lana71 [14]

$\boxed{d=\sqrt{(x_a-x_b)^2+(y_a-y_b)^2}}\\ \\ d=\sqrt{(2-(-4))^2+(5-(-1))^2}\\ \\ d = \sqrt{(2+4)^2+(5+1)^2}\\ \\ d=\sqrt{6^2+6^2}\\ \\ d=\sqrt{36+36}\\ \\ d=\sqrt{72}\\ \\ d=\sqrt{2}\cdot\sqrt{36}\\ \\ \boxed{d=6\sqrt{2}}$

$\sqrt{2} = 1,41\\ \\ \boxed{d\approx8,5}$

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3 years ago

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How would you write -4.5 as a rational number in the form of a/b?

kvv77 [185]

You could really rewrite -4.5 in an infinite amount of ways. But a couple of simple ones: $\frac{-4.5}{1}$ or $\frac{-9}{2}$

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3 years ago

I use the formula and apparently I might be doing it wrong

stich3 [128]

Distance = 30 mi
Speed = 45 mi/h
We know that Distance = Speed x Time OR Time = Distance/Speed

Time to go to the site: T = 30/45 = 0.66667 Hour. Multiply by 60 to get it in minutes: 0.66667 x 60 = 39.9999 ≈ 40 minutes

To come back he also spent the same time or 40 minutes
To and Fro = 80 minutes or 1 H 20 minutes

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3 years ago

How do you get the answer for 10x4= _ x 5

andrezito [222]

10 • 4 = _ • 5

10•4=40

40/5=8

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4 years ago

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