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3 years ago

The function f is defined by the following rule. f(x) = 2x-5 Complete the function table.

Mathematics

1 answer:

yaroslaw [1]3 years ago

6 0

-9, -5, -3, -1, 5 because you just put plug the number in the left column in for X

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Which quote from Little Women best exemplifies the theme of making sacrifices for genuine love?

romanna [79]

Answer:

"’I don't want a fashionable wedding, but only those about me whom I love, and to them I wish to look and be my familiar self.’"

Step-by-step explanation:

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3 years ago

A rectangular parking lot has an area of 315 square yards. The width of the parking lot is 5 yards longer than the length of the

Blababa [14]

Answer:

Dimension of parking lot is approximately 15.425 × 20.425 yards.

Step-by-step explanation:

Given:

Area of the parking lot = $315 \ yd^2$

Let the length of the parking lot be $'l'$

Also Given:

The width of the parking lot is 5 yards longer than the length of the parking lot.

so we can say that;

width of the parking lot, $w=5+l$

We need to find the dimension of parking lot.

Solution:

Now we can say that;

Area of rectangle is equal to length times width.

framing in equation form we get;

$lw=315$

Now substituting the value of w in above equation we get;

$l(l+5)=315\\\\l^2+5l=315\\\\l^2+5l-315=0$

Now we will find the roots using quadratic equation.

$ax^2+bx+c =0$

a = 1

b=5

c=-315

Formula for quadratic equation is;

$l =\frac{-b\±\sqrt{b^2-4ac}}{2a}$

First we will find;

$\sqrt{b^2-4ac} = \sqrt{5^2-4\times1\times-315} =\sqrt{25+1260}=\sqrt{1285} \approx35.85$

Now we will substitute the value we get;

$l =\frac{-5\±35.85}{2\times1}= \frac{-5\±35.85}{2}$

Now we will find 2 roots we get;

$l= \frac{-5+35.85}{2}= \frac{30.85}{2}\approx15.425\\\\OR\\\\l =\frac{-5-35.85}{2}= \frac{-40.85}{2} \approx -20.425$

Now we get 2 values of length one is positive and other is negative.

But length of parking lot cannot be negative hence we will discard the negative value.

Hence the length of the parking lot = 15.425 yards

Width of the rectangular parking lot = $l+5=15.425+5 =20.425$

Hence we can say that dimension of parking lot is approximately 15.425 × 20.425 yards.

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3 years ago

Scott’s bank account showed a balance of $750 on Sunday. During the next five days, he made one deposit of $140 and numerous wit

musickatia [10]

Answer:

Step-by-step explanation:

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3 years ago

Write the equation of the line perpendicular to 3x+y=-8 that passes through (-3,1) . Write your answer in slope-intercept form.

murzikaleks [220]

I hope this helps you

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3 years ago

Read 2 more answers

The original cost of a necklace is $32. The jewelry store is having a sale and every item is 30% off. A 6.75% tax rate is charge

madam [21]

Answer:

Step-by-step explanation:

Original cost = $32

Discount = 30% of 32

$=\frac{30}{100}*32\\\\=\frac{3*32}{10}\\\\=\frac{96}{10}\\\\=9.6\\$

Selling price = 32 - 9.60 = $22.40

Tax = 6.75% of 22.40

$=\frac{6.75}{100}*22.40\\\\= 1.512$

= $ 1.51

Total cost with discount and tax = 22.40 - 1.51 = $ 20.89

5 0

3 years ago