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3 years ago

How to add and subtract radical expressions

Mathematics

1 answer:

Ivanshal [37]3 years ago

4 0

Subtract them left to right

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Please help I need this answered. Find x and explain. I’ll give brainliest.

Olenka [21]

Answer:

I am not positive but I believe X = 6 so the total, if you add it up, would be 180

Step-by-step explanation:

64 + 110 = 174 + 6 = 180

Hope this helps

5 0

3 years ago

Trevor tutors French for $15 and hour and scoops ice cream for $10 an hour. He is going to work 15 hours this week. At least how

RUDIKE [14]

Answer:

12 hours

Step-by-step explanation:

so what you do is take your $180 money amount and then divide it by your 15 or 12 dollar money amount and you should get your answer also your "answer" for the things you gave us is

15 x + 10 y = 180

3 0

3 years ago

3. Find BC<br><br> 6. find m< A

sammy [17]

Answer:

Step-by-step explanation:

7 0

2 years ago

zubka84 [21]

Answer:

See Explanation Below

Step-by-step explanation:

Given

$(sin x - cos x)^2 = sec^2x - tan^2x - 2sinx.cos x.$

Required

Prove

To start with; we open the bracket on the left hand side

$(sin x - cos x)^2 = (sin x - cos x)(sin x - cos x)$

$(sin x - cos x)^2 = (sin x )(sin x - cos x)- (cos x)(sin x - cos x)$

$(sin x - cos x)^2 = sin^2 x -sinx cos x - sin xcos x + cos^2 x$

$(sin x - cos x)^2 = sin^2 x -2sinx cos x + cos^2 x$

Reorder

$(sin x - cos x)^2 = sin^2 x + cos^2 x - 2sinx cos x$

From trigonometry;

$sin^2x + cos^2x = 1$

So;

$(sin x - cos x)^2 = sin^2 x + cos^2 x - 2sinx cos x$

becomes

$(sin x - cos x)^2 = 1 - 2sinx cos x$

Also from trigonometry;

$sec^2x - tan^2x = 1$

So,

$(sin x - cos x)^2 = 1 - 2sinx cos x$

becomes

$(sin x - cos x)^2 = sec^2x - tan^2x - 2sinx cos x$

Proved

3 0

3 years ago

if one store has 360 items and another store has 100 of the same items, express the ratio of the items

choli [55]

360:100 or 360 to 100

4 0

3 years ago