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Alik [6]
3 years ago
11

The function y=−0.25x+0.7 represents the percent y (in decimal form) of battery power remaining x hours after you turn on a lapt

op computer. Identify the x and y intercepts.
Mathematics
2 answers:
mel-nik [20]3 years ago
7 0

Answer:

x-intercept: 2.8 hours

y-intercept: 0.7 . . . . fraction of power remaining

Step-by-step explanation:

The equation is in slope-intercept form, so the y-intercept can be read directly: 0.7.

To find the x-intercept, set y=0 and solve for x:

0 = -0.25x +0.7

0.25x = 0.7 . . . . . add .25x

x = 2.8 . . . . . . . . . multiply by 4 (that is, the reciprocal of 0.25)

The x-intercept is 2.8; the y-intercept is 0.7.

ser-zykov [4K]3 years ago
7 0

Answer:

x = (2.8, 0) and y = (0, 0.7).

Step-by-step explanation:

y = -0.25x + 0.7

The y-intercept is when the value of x = 0:

y = -0.25(0) + 0.7 = 0.7.

Solving for the x intercept ( when y = 0):

0 = -0.25x + 0.7

0.25x  = 0.7

x = 2.8 hours.

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Semenov [28]
The answer (i think) is 3 <span>≥</span> x. hope i helped
7 0
3 years ago
A King in ancient times agreed to reward the inventor of chess with one grain of wheat on the first of the 64 squares of a chess
maxonik [38]

Answer:

Total weight of the wheat placed on 45th square will be = 1.26\times 10^{6}tons

Step-by-step explanation:

King rewarded the inventor of chess by giving grain of wheat on every square of the chess board. He places one  grain of wheat on first square, 2 on second, 4 on 3rd, 8 on 4th and so on.

In fact he places grains of wheat in a progression S = 1, 2, 4, 8, 16.........n terms where value of n is 64.

We can rewrite the progression as S = 2°, 2, 2², 2³,.........n terms (n = 64)

In a geometric progression we know the nth term = a(r^{n-1})

where a = first term of the series, r = common ratio, n = number of terms

Now we have to calculate the weight of all wheat placed on 45th square.

So we will put the values in the given formula 45th term =

1\times (2^{45-1}) = 2^{44}=1.76\times 10^{13}

Then the weight of wheat will be = 2.51\times 10^{9}pounds=1.26\times 10^{6}tons



7 0
3 years ago
Our club shirts are available in two sizes: small shirts coat $27 each and large shirts cost $31 each. Last week a total of 14 s
DanielleElmas [232]

small = 9

large = 5

hope this helps

7 0
4 years ago
What is 2 + 1 = ? is it 3 or is it 3 because i dont know​
Vesnalui [34]

Answer: 4

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Tickets to a football game cost 5$ for students and 7$ for adults. write and solve a system of equations to determine the number
stepan [7]

Answer:

x + y = 680

5x + 7y = 3914

Step-by-step explanation:

Let the amount of students who purchased tickets equal x.

Let the amount of adults who purchased tickets equal y.

If you add the amount of adults and students, you get the total amount of people:

x + y = 680

Also, to find the amount students spent on tickets, you multiply the ticket price by the amount of students to get 5x. And to find the amount adults spent on tickets, you multiply the ticket price by the amount of adults to get 7y. By adding the two amount, you get the total amount of money:

5x + 7y = 3914

These are the two equations:

x + y = 680

5x + 7y = 3914

8 0
3 years ago
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