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4 years ago

(30 POINTS) PLZ HELP THIS IS IMPORTANT

Mathematics

2 answers:

telo118 [61]4 years ago

4 0

Answer:

x 1 2 5 7

y 5 10 25 35

Step-by-step explanation:

The y values are the x values times 5

Please rate <u>Brainliest</u> (:

Vika [28.1K]4 years ago

3 0

Answer:

x 1 2 5 7

y 5 10 25 35

Step-by-step explanation:

The y values are all just the x values times 5

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A car rental company offers two plans for renting a car: Plan A: 30 dollars per day and 13 cents per mile Plan B: 50 dollars per

Shkiper50 [21]

Answer: In order to save money for a 1 day rental with plan B, the number of miles must be greater than 153.84 miles

Step-by-step explanation:

Let x represent the number of miles driven with either plan A or B.

Plan A: 30 dollars per day and 13 cents per mile. It means that the cost of renting the car or one day and driving x miles is

30 + 0.13x

Plan B: 50 dollars per day with free unlimited mileage. It means that the cost of renting the car or one day and driving x miles is 50

In order to save money for a 1 day rental with plan B, the number of miles would be

50 < 30 + 0.13x

50 - 30 < 0.13x

20 < 0.13x

0.13x > 20

x > 20/0.13

x > 153.84 miles

5 0

4 years ago

Felix saves $4 per carton for fresh eggs from the farmer's market. This represents a 32% discount. Find the regular price for ea

AleksandrR [38]

4 / 32 = 0.125
This is the amount per percent
0.125 multiplied by 100 which is 12.50
Final answer is $12.50 so C

5 0

4 years ago

Helppppppppp?!!!:)???

garik1379 [7]

Answer:

14 and 2/3

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Hopefully you can see the question! If not, jut comment down below this and I'll put the question in the comments :) Thanks for

OlgaM077 [116]

Answer:

2 minutes

Step-by-step explanation:

You can make an equation to model the question.

y=60 initial starting value,

y=(750-720)x, plug in 60 for y,

60=30x, x = 2 minutes

4 0

3 years ago

Simplify the first trigonometric expression by writing the simplified form in terms of the second expression (1/1-cosx)-(cos/1+c

garik1379 [7]

$(\frac{1}{1-cos(x)})-(\frac{cos(x)}{1+cos(x)})$

cscx is 1/sinx

maybe they want us to use pythagorean identity

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

I notice we have 1-cos(x) and 1+cos(x), if we multiply them, we get $1-cos^2(x)$

and if we look at the pythagorean identity and minus cos^2(x) from both sides, we get

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

since $csc(x)=\frac{1}{sin(x)}$ , $csc^2(x)=\frac{1}{sin^2(x)}=\frac{1}{1-cos^2(x)}$

(recall that (a-b)(a+b)=a²-b²)

match the denomenators of the original fraction

multiply first fraction by $\frac{1+cos(x)}{1+cos(x)}$ and the 2nd by $\frac{1-cos(x)}{1-cos(x)}$

$(\frac{1+cos(x)}{1-cos^2(x)})-(\frac{cos(x)(1-cos(x))}{1-cos^2(x)})=$

$((csc^2(x))(1+cos(x)))-((csc^2(x))(cos(x)-cos^2(x)))=$

$csc^2(x)+csc^2(x)cos(x)-(csc^2(x)cos(x)-csc^2(x)cos^2(x)=$

$csc^2(x)+csc^2(x)cos(x)-csc^2(x)cos(x)+csc^2(x)cos^2(x)=$

$csc^2(x)+csc^2(x)cos^2(x)=$

$csc^2(x)(1+cos^2(x))$ , hmm, to get ride of those cos(x)

look to the pythagorean identity again

$sin^2(x)+cos^2(x)=1$ , force one side into form 1+cos^2(x)

$1+cos^2(x)=2-sin^2(x)$ , recall that since csc(x)=1/sin(x), sin(x)=1/csc(x) and sin^2(x)=1/(csc^2(x))

$1+cos^2(x)=2-\frac{1}{csc^2(x)}$

subsituting

$csc^2(x)(1+cos^2(x))=$

$(csc^2(x))(2-\frac{1}{csc^2(x)})=$ distributing

$2csc^2(x)-\frac{csc^2(x)}{csc^2(x)}=$

$2csc^2(x)-1$ is the simplified expression

8 0

3 years ago