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pashok25 [27]
3 years ago
12

9x+6-4x-2x+1-15 simplify plz

Mathematics
1 answer:
erik [133]3 years ago
8 0

Answer:

3x-8

Step-by-step explanation:

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Perform the indicated operation and simplify. (x+3)(x2−5x+2) Write your answer in standard form. No spaces when entering your an
Deffense [45]

Answer:

x^3-2x^2-13x+6

Step-by-step explanation:

We are to simplify the expression (x+3)(x^2−5x+2). This is as shown;

(x+3)(x^2−5x+2)

Expand

= x(x^2)-5x(x)+2x+3x^2-3(5x)+6

= x^3 - 5x^2+2x+3x^2-15x+6

Collect the like terms

= x^3 - 5x^2+3x^2+2x-15x=6

= x^3-2x^2-13x+6

This gives the required expression

6 0
3 years ago
Create a probability model for the outcome of performing 2 spins. What is the probability of NOT landing on yellow or red at all
Mamont248 [21]

Using the concept of probability, the probability of not landing on <em>yellow or red at all</em> is 1/4.

<u>Creating</u><u> </u><u>a</u><u> </u><u>square</u><u> </u><u>model</u><u> </u><u>of</u><u> </u><u>the</u><u> </u><u>two</u><u> </u><u>spins</u><u> </u><u>:</u>

  • Red(R) ; Blue(B) ; Green(G) ; Yellow(Y)

___ R ___ B ___ G ___ Y

R_ RR __ RB __ RG __ RY

B_ BR __ BB __ BG __ BY

G_ GR __GB __ GG __GY

Y_ YR __ YB __ YG __ YY

  • <em>Sample</em><em> </em><em>space</em><em> </em><em>=</em><em> </em><em>4²</em><em> </em><em>=</em><em> </em><em>16</em>

<u>Combinations</u><u> </u><u>without</u><u> </u><u>red</u><u> </u><u>and</u><u> </u><u>yellow</u><u> </u><u>:</u>

  • {BB, BG, GB, GG}
  • <em>Number</em><em> </em><em>of</em><em> </em><em>selections</em><em> </em><em>without</em><em> </em><em>red</em><em> </em><em>or</em><em> </em><em>yellow</em><em> </em><em>=</em><em> </em><em>4</em><em> </em>

<u>Recall</u> :

  • <em>Probability</em><em> </em><em>=</em><em> </em><em>required</em><em> </em><em>outcome</em><em> </em><em>/</em><em> </em><em>Total possible</em><em> </em><em>outcomes</em><em> </em>

P(without Red or Yellow) = 4/16 = 1/4

Hence, the probability of not landing on <em>yellow</em><em> </em><em>or</em><em> </em><em>red</em><em> </em><em>at</em><em> </em><em>all</em><em> </em>is 1/4.

Learn more : brainly.com/question/14605518

5 0
2 years ago
Every dollar is 10 dimes write an equation to express the total number of dimes (z) in (y) dollars
nekit [7.7K]
Y=10z
Hope this helped:)
3 0
3 years ago
Read 2 more answers
Det Eminem’s the volume of a sphere with a radius of 0.48 inch round your answer to the nearest hundredth
levacccp [35]
0.50 because the 8 is in the hundredth place and is greater than 5 so you round it up. Then you turn that to a zero because the 8 becomes a 10 but you only use the zero. Then you turn the 4 to a 5 or else the number would be getting smaller and not larger.
4 0
3 years ago
A phone company offers two monthly plans. Plan A costs $ 20 plus an additional $0.12 for each minute of calls. Plan B costs $13
Shalnov [3]

Let:

• y, be the cost of the plan

,

• x, be the minutes spend on call

This way, we'll have:

Plan A:

y=0.12x+20

Plan B:

y=0.17x+13

If the two plans cost the same, we'll have that:

0.12x+20=0.17x+13

Solving for x :

\begin{gathered} 20-13=0.17x-0.12x \\ \rightarrow7=0.05x \\ \rightarrow\frac{7}{0.05}=x \\  \\ \Rightarrow x=140 \end{gathered}

A) The two plans will cost the same for 140 minutes on call

The cost will be:

\begin{gathered} y=0.12(140)+20 \\ \Rightarrow y=36.8 \end{gathered}

B) $36.80

3 0
2 years ago
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