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3 years ago

I need help ill mark brainliest if you do them all

Mathematics

2 answers:

notsponge [240]3 years ago

7 0

onthe question were it says 2 that is B.

on the question

with no number that is D

and number 4 is....... um maybe C or A but im not sure

Goodluck!

Alexus [3.1K]3 years ago

3 0

Ummmm I’m hear for fun

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A $900 notebook computer is discounted 5% what is the sale price of a notebook computer

fenix001 [56]

The sale price of computer is $855

Step-by-step explanation:

First of all the discount is calculated and then subtracted from the original price to calculate the sale price

Given

price of notebook computer = $900

Discount = 5%

So,

$Discount = 5\%\ of\ 900\\= 0.05 * 900\\= \$45$

Now,

$Sale\ price = Original\ price - Discount\\= 900-45\\=855$

Hence,

The sale price of computer is $855

Keywords: Discount, percentage

Learn more about percentage at:

#LearnwithBrainly

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3 years ago

Which of the listed values are equal to the sine of C A.)b/a B.)c/a C.)c/b D.)cos B E.)5.Cos C F.)cos (90°-C) G.)cos(90°-B)

kherson [118]

Answer:

Sine of C=?

Among the given options which is the correct one.

Step-by-step explanation:

Consider a right-angle triangle ABC.

$angle B=90^{0}$

In a right angle triangle, one angle $90^{o}$ .

The sum of all the angles is $180^{o}$ .

$angle A +angle B+angleC=180^{0}angleA+90^{0} +angle C=180^{0}\\angleA+angleC=180^{0} -90^{0} \\angleA+angleC=90^{0} \\angleA=90^{0} -angle C$

Consider the trigonometric ratios and use the traingle ABC.

$SinC=\frac{AB}{AC}$

$CosA=\frac{AB}{AC}$

$angleA=angle(90-C)\\Hence,\\SinC=Cos(90-C)$

Answer:

OptionF). $Sine of C=Cos(90^{0} -C)$

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3 years ago

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Lorico [155]

It’s 42.5 like the other girl sayied

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3 years ago

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n200080 [17]

Answer:

Step-by-step explanation:

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3 years ago

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atroni [7]

The answer is 128. you do 4^2 x 8

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3 years ago

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