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3 years ago

PLS HELP! DUE IN 30 MINS!!!!!

Mathematics

1 answer:

erik [133]3 years ago

3 0

Answer:

Inequality: 22 + 5x ≥ 59

Minimum amount: 7.4

Realistic number: 8

Represented on a graph: I think it would look like a vertical line starting at the x value of 8, and continue right forever

Step-by-step explanation:

22 because that's how much she has already, 5x will represent her earnings relative to the number of driveways she pressure washes, and greater than or equal to 59 because she needs $59 or more to buy the video game.

22 + 5x ≥ 59 (subtract 22 from each side)

5x ≥ 37 (divide each side by 5)

x ≥ 7.4

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sesenic [268]

Answer:

4000

Step-by-step explanation:

5 0

2 years ago

Finding the Median from a Dot Plot

MAXImum [283]

Answer:

median rainfall for highland storms = 18mm

median rainfall for lowland storms = 18mm

median rainfall for lowland storms = 17mm if the list of numbers is

2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32

Step-by-step explanation:

The median is the middle number of a sequence of ordered numbers.

The formula for the median is:

median = (n + 1 )/ 2

where n = total number of values

Note: the number that you find with this formula is the position. SO you have to go to the sequence of numbers and find the number that lies in that position.

Highland storms:

4 6 8 10 12 14 16 18 20 22 24 26 28 30 32

The numbers are already in ascending order so we can proceed.

n = 15

∴ median = (15+1)/2

= 16/2

= 8

The median is the umber in the 8th position

so, the median rainfall for highland storms is 18mm

Lowland storms:

4 6 8 10 12 14 16 18 20 22 24 26 28 30 32

The numbers are already in ascending order so we can proceed.

n = 15

∴ median = (15+1)/2

= 16/2

= 8

The median is the number in the 8th position.

∴ median rainfall for lowland storms is = 18mm

<u>Unclear: if this is the list of numbers: </u>

2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32

then the median would be:

n = 16

median = (16+1)/2

= 17/2

= 8.5

This means the median lies between the numbers in the 8th and 9th position.

∴ The median is = (16 + 18)/2

= 34/2

= 17

5 0

3 years ago

Read 2 more answers

Use the four functions below for this question:

Jlenok [28]

Answer:

We have four functions:

For f(x) we have two points (-2,2) and (-1,-1)

we will use two point form which is:

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

So, on substituting the values we get:

$y-2=\frac{-1-2}{-1-(-2)}(x-(-2))$

$y-2=\frac{-3}{x+2}$

$y=-3x-4$

So, f(x)=-3x-4

We have g(x)=3x-4

Now, we will from h(x) we have two points let initial point on monday is (0,4) and tuesday (1,1) again use two point form we get:

$y-4=-3(x-0)$

$\Rightarrow y=-3x+4$

So, h(x)= -3x+4

Now, we will form j(x) we have three points (2,10) , (-2,6) and (2,22)

We will use (-2,6) and (2,22) to find the function with two point form.

$y-6=\frac{22-6}{2+2}x+2)$

$\Rightarrow y=4x+14$

j(x)= 4x+14

To find the slope we will compare the given function with general equation which is y= mx +c; m is the slope

And to find y-intercept we will put x=0

f(x)=-3x-4

Slope is: -3

And y-intercept is: (0,-4)

g(x)=3x-4

Slope is: 3

And y-intercept is: (0,-4)

h(x)= -3x+4

Slope is: -3

And y-intercept is: (0,4)

j(x)= 4x+14

Slope is: 4

And y-intercept is: (0,14)

8 0

3 years ago

Read 2 more answers

Cooper opened a savings account and deposited $1,000.00. The account earns 9% interest, compounded continuously. If he wants to

AveGali [126]

Step-by-step explanation:

A = P*e*r*t

P = 1,000

e = 2.71828

r = 0.09

t = 1

A = (1,000)*(2.71828)*(0.09)*(1)

A = 244.65

4 0

3 years ago

13.

brilliants [131]

Answer:

The answer to your question is: midsegment = 35 units

Step-by-step explanation:

Use the Thales' theorem

$\frac{3x + 55}{6x + 5} = \frac{86}{43} \\$

43( 3x + 55) = 86( 6x + 5)

129x + 2365 = 516x + 430

129x - 516x = 430 - 2365

-387x = -1935

x = -1935 / -387

x = 5

Midpoint length = 6(5) + 5

= 30 + 5

= 35 units

8 0

3 years ago