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3 years ago

Find the value of each polynomial when (a) x=0 and (b)= -1 15). x^2-5x-2

Mathematics

1 answer:

Trava [24]3 years ago

8 0

A) Just plug 0 in for x:
0^2 -5(0) -2
0 -0 -2 = -2

b) plug -1 in for x:
(-1)^2 -5(-1)-2
1 + 5 - 2 = 6-2=4

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The output with the y being -4

aivan3 [116]

For this case we have a function of the form $y = f (x)$ , where $f (x) = - 4x$ . We must find the values of "and" according to the following function: $y = -4x$

So:

$f (-6) = - 4 (-6) = 24\\f (-2) = - 4 (-2) = 8\\f (3) = - 4 (3) = - 12$

Thus, the values are:

24,8, -12

Answer:

24,8, -12

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4 years ago

You have decided to purchase a car for $19,000. The credit union requires a 10% down payment and will finance the balance with a

Lady_Fox [76]

<h2>○=> <u>Correct option</u> :</h2>

$\color{plum} \bold{ \tt \: \bold{C. \$20,652.00}}$

<h3>○=> <u>Steps to derive correct option</u> :</h3>

Selling price of a car = $19,000

Percentage of sales tax in the city = 8.3%

Sales tax :

$= \tt \frac{8.3}{10 \times 100} \times 1900$

$= \tt \frac{8.3 \times 19000}{1000}$

$= \tt \frac{1577000}{1000}$

$\color{plum} = \tt \$1577$

Thus, the sales tax on the car = $1577

Cost of license and title = $75

Total price of car :

= Cost price of car + Sales tax + cost of license/title

$= \tt19000 + 1577 + 75$

$\color{plum} = \tt \$20652$

Thus, the total purchase price of the car = $20,652.00

Therefore, the correct option is <em>(C) $20,652.00</em>

6 0

3 years ago

Solve the system of equations by substitution method

mina [271]

( - 0.625, - 1.75 )

so since the first equation is already simplified , just replace it in the second equation

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Fynjy0 [20]

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M is the midpoint of PQ. PM = 6x + 7 and MQ = 9x – 8, find the length of PQ.

koban [17]

Answer:

The length of PQ is 64 units

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2 years ago