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kvv77 [185]
3 years ago
9

Graph f(x)= -0.25x+4 HELP ASAP PLEASE!!!

Mathematics
2 answers:
Alex787 [66]3 years ago
7 0

Answer:

Shown below

Step-by-step explanation:

-0.25/1x is your rise over run, 4 is your “starting point”

vitfil [10]3 years ago
3 0

Answer:

Step-by-step explanation:

1) Since this function is f(x)=mx+b, whose rule is:

f(x)=-0.25x+4

2) Then this parameter <em>m</em> is a negative one, the line is a decreasing one (from upper left to lower right). Then Let's choose three random values for x, and plug it in the function, to get y values. Let x, be 0,1,2.

The parameter b is 4 then the line crosses the y-axis in point (0,4).

3) Plugging it in, goes:

f(x)=-0.25x+4\Rightarrow f(0)=-0.25(0)+4\Rightarrow f(0)=4\\f(1)=-0.25(1)+4\Rightarrow f(1)=-0.25(1)+4\Rightarrow f(1)=3.75\Rightarrow f(2)=-0.25(2)+4\Rightarrow f(2)=3.50

As we have three coordinate points, we can trace a line:

(0,4),(1,3.75),(2,3.5)

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2 and 4

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What is the measure in degrees of 8x if one angle is already 7x and 44.4 degrees?
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7x+8x+44.4=180

15x=44.4=180

15x=135.6

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Which percent is equivalent to ?
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It would be 340%. First, you need to find out what the fraction is for 2/5. 2/5 as a decimal would be .4. Next you put that back with the three which is 3.4. After that, you need to turn that into a percentage by multiplying it by 100 which then equals 340. add the % to it and that gives you 340%.
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Maria, Keisha, Jo, and Leah wear jerseys numbered 5, 8, 13, and 36, but not necessarily in that order. The girl wearing 8 has a
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Sean has 15,000 to invest she will put some of it into a fund that pays 4.5% annual interest in the rest in a certificate of dep
erastovalidia [21]

Answer:$12500 was invested into the account that pays 4.5% annual interest..

$2500 was invested into the the certificate of deposit that pays 1.8% annual interest..

Step-by-step explanation:

Let x represent the amount invested into the account that pays 4.5% annual interest.

Let y represent the amount invested into the certificate of deposit that pays 1.8% annual interest.

Sean has 15,000 to invest. She will put some of it into a fund that pays 4.5% annual interest and the rest in a certificate of deposit that pays 1.8% annual interest. This means that

x = y + 15000

The formula for simple interest is expressed as

I = PRT/100

Where

P represents the principal

R represents interest rate

T represents time in years

I = interest after t years

Considering the account earning 4.5% interest, the interest would be

I = (x × 4.5 × 1)/100 = 0.045x

Considering the account earning 11% interest, the interest would be

I = (x × 1.8 × 1)/100 = 0.018y

if she wants to earn 4.05% annual interest on the total amount, the amount would be

4.05/100 × 15000 = 607.5

Therefore,

0.045x + 0.018y = 607.5 - - - - - - - - - - -1

Substituting x = 15000 - y into equation 1, it becomes

0.045(15000 - y) + 0.018y = 607.5

675 - 0.045y + 0.018y = 607.5

- 0.045y + 0.018y = 607.5 - 675

- 0.027y = - 67.5

y = - 67.5/- 0.027

y = $2500

x = 15000 - y = 15000 - 2500

x = $12500

5 0
3 years ago
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