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weqwewe [10]
3 years ago
9

Expand and simplify. 2x(x + 4)

Mathematics
2 answers:
Anit [1.1K]3 years ago
6 0

Hello there! 2x² + 8x.

2x(x + 4) > start by multiplying 2x by both terms in the equation.

<em>so, 2x(x + 4) is the same as 2x(x) + 2x(4).</em>

We are left with 2x² + 8x.

We cannot simplify this anymore, so this is your final answer. :)

Veronika [31]3 years ago
4 0
Answer: 2xsquared + 8x (sorry i cant do the squared symbol on my phone)

Explanation : you need to multiply out the brackets so if you have 2 xs and you are multiply with brackets they then become x squared as there is 2 of them. You get 8x as when you times 2 by 4 you get 8 and as you already have an x there it would have to be 8x. Hope this helps!
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A fair coin is tossed 4 times. what is the probability that at least 2 heads appear
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HHHH TTTT HHHT HHTH HTHH THHH TTTH TTHT THTT HTTT
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-  is the sample space.

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3 years ago
Please help<br> What is the simplified expression for<br> 2^2 x 2^3/ 2^4
jonny [76]
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8 0
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Historically, the proportion of people who trade in their old car to a car dealer when purchasing a new car is 48%. Over the pre
artcher [175]

Answer: The proportion of new car buyers that trade in their old car has statistically significantly decreased.

Step-by-step explanation:

Since we have given that

p = 48% = 0.48

n = 115

x = 46

So, \hat{p}=\dfrac{46}{115}=0.40

So, hypothesis would be

H_0:\ p=\hat{p}\\\\H_a:p

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6 0
4 years ago
An airline claims that 90% of the time, its planes are on schedule. If three flights are selected at random, what is the probabi
serg [7]
1. Check the tree diagram in the picture attached.

2. The blue segment represents "on time"
    The red segment represents "not on time"


3. blue - blue - red represents the case 1st on time, 2nd on time, 3rd not on time.

the combined probability is 90/100*90/100*10/100=9/10*9/10*1/10=99/1000=0.099

4. Remark with a tree diagram we can tell anything asked about the probability of an experiment.

8 0
3 years ago
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