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2 years ago

(-5x^2+2x+6)-(9x^2+2x+9)+(-6x^2+5x-3) simplified

Mathematics

2 answers:

igomit [66]2 years ago

6 0

Answer:

− 20 x ^2 + 5 x − 6

Step-by-step explanation:

jolli1 [7]2 years ago

5 0

Answer:

$-20x^2+5x-6\\$

Step-by-step explanation:

Start by removing the grouping symbols (parentheses) using the sign rules:

$(-5x^2+2x+6)-(9x^2+2x+9)+(-6x^2+5x-3)=\\=-5x^2+2x+6-9x^2-2x-9-6x^2+5x-3$

Then we re-order and combine like terms:

$-5x^2+2x+6-9x^2-2x-9-6x^2+5x-3=\\=-5x^2-9x^2-6x^2+2x-2x+5x+6-9-3=\\=-20x^2+5x-6$

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The space shuttle flight control system called PASS (Primary Avionics Software Set) uses four independent computers working in p

tigry1 [53]

Answer:

$f_X(k)=\binom{4}{k}0.003^k0.997^{4-k}$

Step-by-step explanation:

Recall that a probability mass function defined on a discrete random variable X is just a function that gives the probability that the random variable equals a certain value k

$f_X(k)=P(X=k)$

In this case we have the event

“The computer will ask for a roll to the left when a roll to the right is appropriate” with a probability of 0.003.

Then we have 2 possible events, either the computer is right or not.

Since we have 4 computers in parallel, the situation could be modeled with a binomial distribution and the probability mass function

$f_X(k)=\binom{4}{k}0.003^k0.997^{4-k}$

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2 years ago

The price of Phillips favorite candy has been reduced by 15 cent per piece. Philips buys 14 pieces and spend $3.22 what is the r

Tamiku [17]

Well, if we divide 3.22 by 14 we get 0.23
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8 0

3 years ago

Solution -9-8(1+4h)= -17

geniusboy [140]

Step 1. Add 9 to both sides

 $-8(1+4h)=-17+9$

Step 2. Simplify $-17+9$ to $-8$

$-8(1+4h)=-8$

Step 3. Divide both sides by $-8$

$1+4h=1$

Step 4. Cancel 1 on both sides

$4h=0$
Step 5. Divide both sides by 4

$h=0$

Done! :) Hope this helps! :)

To check $-9-8(1+4h)=-17$ follow these steps below:

Step 1. Let h = 0

$-9-8*(1+4*0)=-17$

Step 2. Simplify 4 * 0 to 0

$-9-8*(1+0)=-17$

Step 3. Simplify 1 + 0 to 1

$-9-8*1=-17$

Step 4. Simplify 8 * 1 to 8

$-9-8=-17$

Step 5. Simplify -9 -8 to -17

 $-17=-17$

Done! :)

5 0

3 years ago

Read 2 more answers

an elevator travels 117 feet in 6.5 seconds. what is the elevators speed as a unit rate? explain answer.

IgorLugansk [536]

117/6.5=18
speed= 18 feet per second
Hope it helped!

8 0

3 years ago

13.

liubo4ka [24]

Answer:

6x +4 where x is amount for standard call