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3 years ago

What is f(x)= x^2-1 and g(x)=x find (f-g)(-3)

1 answer:

4 0

We calculate f(-3);g(-3) and f(-3) - g(-3);
Then, f(-3) = (-3)^2 - 1 = 9 - 1 = 8; g(-3) = -3; f(-3) - g(-3) = 8 - (-3) = 8 + 3 = 11;

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Find the value of x, please help me :)

Ksenya-84 [330]

Answer:

x=32

Step-by-step explanation:

To make the lines parallel, the sum of the angles must be equal to 180. 2x+3x+20=180, 5x=160, x=32

4 0

3 years ago

What is the name of the polynomial, 3x³ +2x + 4?

vekshin1

Answer:

cubic trinomial

Step-by-step explanation:

can I have brainllest

3 0

2 years ago

Count by fives from 135!to 175 describe the pattern

irina1246 [14]

5 10 15 20 25 30 35 40 45 50 55 60 64 70 75 80 85 90 95 100, 105 110 115 120 125 130 (135) 150 155 160 165 170 (175)
Five multiplied each number.

Hope I helped!

-RainyClouds~

5 0

3 years ago

the temper ire of chicken soup is 192.7 F as it cools the temperature of the soup decreases 2.3 what is the temperature of the s

ad-work [718]

The temperature of soup after 25 minutes is $135.2^{\circ}\ F$

Solution:

The temperature of chicken soup is 192.7°F

As it cools, the temperature of the soup decreases 2.3°F per minute

Let the initial temperature be $T_0$

Let "t" be the time for rate of decrease

Set up an equation

Temperature = Initial temperature - decrease in temperature

Decrease in temperature = rate of decrease x time

Therefore,

$T = T_0-2.3t$

To find the temperature of soup after 25 minutes, substitute t = 25

$T = 192.7 - 2.3 (25)\\\\T = 192.7 -57.5\\\\T = 135.2$

Thus the temperature of soup after 25 minutes is $135.2^{\circ}\ F$

5 0

3 years ago

If you divide 6! by 4! you are evaluating P(6, 4)

Aleks [24]

When you're evaluating P(n, k), you are essentially saying there are n objects and you will need to arrange them in k spaces.

This is essentially the same as: $^{6}P_4$ , which follows the formula:

$P(6, 4) = ^{6}P_4 = \frac{6!}{(6 - 4)!} = \frac{6!}{2!}$
If you're dividing by 4!, you are evaluating P(6, 2)

8 0

3 years ago