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3 years ago

Given that AC is a diameter of the circle above and that mŁABD= 649, find m2DBC.

Mathematics

1 answer:

zlopas [31]3 years ago

5 0

Answer: D

Step-by-step explanation:

You can visually see that they are equal to each other, since the dimater goes directly through the center

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How do I do question 9 b?

Lynna [10]

You find the circumference of a full circle so 2πr =43.98
then divide by 4=10.995
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3 years ago

Help please 6x^2-18

prohojiy [21]

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Step-by-step explanation:

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3 years ago

The pair of values below is from a direct variation. Find the missing number.

NISA [10]

Answer:

The answer is 2.

2 since 6/4=3/2

Step-by-step explanation:

Since your relation is a direct variation then the points on your line are of the form y=kx where k is the constant of variation (also called constant of proportionality)

If y=kx then y/x=k.

So all the points in this relation since it is a direct variation will be equal to y-coordinate/x-coordinate.

So we are going to solve this proportion:

$\frac{6}{4}=\farc{3}{x}$

Again I put y/x from each point. They should have same ratio because this is a direct variation.

Cross multiply:

$6(x)=4(3)$

$6x=12$

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$x=\frac{12}{6}$

$x=2$

6 0

3 years ago

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natka813 [3]

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2 years ago

Divide 800ml into ratio 3:7

Black_prince [1.1K]

Simply take the numerator (3) and denominator (7) and add them together.

3+7 = 10, which means that the ratio will provide parts that are in multiples of 10 depending on the total

so take 10x = 800

x = 80.

Then multiply this by the numerator and denominator

3*80/7*80 = 240/560.

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3 years ago