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2 years ago

At a coffee shop, the first 100 customers'

Mathematics

1 answer:

mylen [45]2 years ago

6 0

Answer: 1/20 or 0.05

Explanation: 5/100=1/20

1/20=0.05 or 5%

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Slope = 0.5, y-intercept = 3.5??

Umnica [9.8K]

Y = 0.5x + <span>3.5

this id the equation for a line when </span>Slope = 0.5, y-intercept = 3.5

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3 years ago

Help plz!! i am stuck and confused plz help!!

fenix001 [56]

525 feet above the ground

7 0

3 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

Roxanne is comparing the monthly payments for a new car at two different car dealerships.

andreyandreev [35.5K]

9514 1404 393

Answer:

A: $563.39

B: $567.84

Step-by-step explanation:

The attached shows the formula. The graphing calculator evaluates it for the different car choices.

The monthly payment for the car from Dealership A is $563.39.

The monthly payment for the car from Dealership B is $567.84.

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3 years ago

8 is what percent of 24?

Irina18 [472]

Answer:

1, 33.3

2, 81.9

3, 240

4, the farmer sold 33.3 of his crops

5, 750 students are enrolled.

5 0

3 years ago

Read 2 more answers