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3 years ago

Please help! Due soon

Mathematics

1 answer:

sesenic [268]3 years ago

7 0

Answer:

its 2/6

Step-by-step explanation:

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Which describes simple, solid instruments that produce sound by struck, scraped, or shaken?

Alborosie

C) Idiophones

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3 years ago

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Three less than the quotient of ten and a number, increased by six” when n = 2?

Musya8 [376]

(10/n +6) -3
10/2+6-3
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3 years ago

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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

$BC=(22)sin(30\°)=11\ cm$

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3 years ago

Determine which of the following logarithms is expanded correctly.

ziro4ka [17]

Answer:

A) log(jk2y = 7log i + 2logk

Step-by-step explanation:

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3 years ago

Please answer this. thanksssss

Sunny_sXe [5.5K]

Answer:the answer is A my friend ;)

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3 years ago