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ivanzaharov [21]

1 year ago

12

You pick a card at random. Without putting the first card back, you pick a second card at random.

1 answer:

Dmitry_Shevchenko [17]1 year ago

7 0

1 because i want it to be 1

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What do you already know about linear relationships?

inna [77]

Answer:

A linear relationship (or linear association) is a statistical term used to describe a straight-line relationship between two variables. Linear relationships can be expressed either in a graphical format or as a mathematical equation of the form y = mx + b.

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2 years ago

In the circle below, DB = 22 cm, and m<DBC = 60°. Find BC. Ignore my handwriting.

Karo-lina-s [1.5K]

Answer:

$BC=11\ cm$

Step-by-step explanation:

step 1

Find the measure of the arc DC

we know that

The inscribed angle measures half of the arc comprising

$m\angle DBC=\frac{1}{2}[arc\ DC]$

substitute the values

$60\°=\frac{1}{2}[arc\ DC]$

$120\°=arc\ DC$

$arc\ DC=120\°$

step 2

Find the measure of arc BC

we know that

$arc\ DC+arc\ BC=180\°$ ----> because the diameter BD divide the circle into two equal parts

$120\°+arc\ BC=180\°$

$arc\ BC=180\°-120\°=60\°$

step 3

Find the measure of angle BDC

we know that

The inscribed angle measures half of the arc comprising

$m\angle BDC=\frac{1}{2}[arc\ BC]$

substitute the values

$m\angle BDC=\frac{1}{2}[60\°]$

$m\angle BDC=30\°$

therefore

The triangle DBC is a right triangle ---> 60°-30°-90°

step 4

Find the measure of BC

we know that

In the right triangle DBC

$sin(\angle BDC)=BC/BD$

$BC=(BD)sin(\angle BDC)$

substitute the values

$BC=(22)sin(30\°)=11\ cm$

6 0

2 years ago

What is the area of a rectangle whose side lengths are o and g?

Mila [183]

Answer:

Area=Base length x Height

Area= O x g.

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2 years ago

Last year, your salary was $33,975. This year, your boss tells you your salary will be $34,960. What percent raise (change) did

Pavlova-9 [17]

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2.9%

Step-by-step explanation:

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2 years ago

What is 3/8 in decimal form

forsale [732]

Simple; you want to divide 3 and 8.

3 / 8 = 0.375

And there's your answer! Remember that a fraction is just a fancy division problem! :)

4 0

3 years ago

Read 2 more answers