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3 years ago

11

Two friends ordered a restaurant special in which they each recived a meal and shared a desert. The final bill with tax and tip

was $21.86.How much should each friend pay

1 answer:

Paul [167]3 years ago

7 0

$10.93 is the answer I got you divide $21.86 by 2

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How to transfer a decimal to a fraction or mixed number?

klemol [59]

A decimal that is like .11 the amount of #s in the decimal is 2 so it'll mean 2 0s like that would be 11/100. So if it was .209 it would be 209/1000.

6 0

3 years ago

(csc x - 1) (csc x + 1)

victus00 [196]

<h2>Explanation:</h2>

Here we have the following expression:

$(csc x - 1) (csc x + 1)$

So we need to extend this. Remember that the difference of squares tells us:

$(a-b)(a+b)=a^2-b^2$

So here:

$a=cscx \\ \\ b=1$

Thus:

$(csc x - 1) (csc x + 1)=csc^2x-1 \\ \\ \\ But: \\ \\ cscx=\frac{1}{sinx} \\ \\ \\ Then: \\ \\ csc^2x-1=\frac{1}{sin^2x}-1=\frac{1-sin^2x}{sin^2x}=\frac{cos^2x}{sin^2x}=cot^2x \\ \\ \\ Finally: \\ \\ \boxed{(csc x - 1) (csc x + 1)=cot^2x}$

4 0

3 years ago

What's the most effective method for controlling inventory ? a ) Electronically , by reviewing billing receipts b ) Electronical

mina [271]

Answer:

a ) Electronically , by reviewing billing receipts

Step-by-step explanation:

The main purpose of controlling inventory is to make sure that the optimal amount of products are being kept.

Therefore, option A is correct.

8 0

2 years ago

Plzzz hellppp I needs thiss nowwww plzzzzz <br><br><br> 3x + 2 = 11

Ilya [14]

3x+2=11
(you need to isolate x, so step 1 is to subtract 2 from both sides.)
3x+2-2=11-2
3x=9
(then divide both sides by 3)
3x/3=9/3
x=3

3 0

3 years ago

Read 2 more answers

What is the area of the shaded area

Molodets [167]

Answer:

160 cm^2

Step-by-step explanation:

The shaded area is the triangle with a base of 20 and a height of 16, I take it.

Area = 1/2 b* h

Area = 1/2 * 20 * 16

Area = 160 cm^2

6 0

3 years ago