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kari74 [83]
3 years ago
8

Can u help me simplify -5(a-9)

Mathematics
2 answers:
Oduvanchick [21]3 years ago
7 0

Answer:

the simplified version of -5(a-9) would be -5a+45.

Step-by-step explanation:

What you have to use is the distributive property. You first take -5 and multiply it by each of the numbers inside. So, you do -5*a which is -5a and then you do -5*(-9) which is +45. You finally put everything together and you get -5a+45.

coldgirl [10]3 years ago
6 0

Answer:

− 5 a + 45

Step-by-step explanation:

can i have brainliest?

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sattari [20]

Given:

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Solution:

The vertex form of a parabola is

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Where, (h,k) is vertex of the parabola.

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y=(x-4)^2+1         ...(ii)

From (i) and (ii), we get

h=4, k=1

The vertex of the parabola is (4,1).

Now, the table of values is

x             y

2            5

3            2

4             1

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5 0
3 years ago
A study of one thousand teens found that the number of hours they spend on social networking sites each week is normally distrib
Svetradugi [14.3K]

Given:

Sample Mean <span>= 30<span>
Sample size </span><span><span><span>= 1000</span></span><span>
</span></span></span>Population Standard deviation or <span><span><span>σ<span>=2</span></span><span>
</span></span>Confidence interval </span><span>= 95%</span>

to compute for the confidence interval

Population Mean or <span>μ<span><span>= sample mean ± (</span>z×<span>SE</span>)</span></span>

<span><span>where:</span></span>

<span><span>SE</span>→</span> Standard Error

<span><span>SE</span>=<span>σ<span>√n</span>= 30</span></span>√1000=0.9486

Critical Value of z for 95% confidence interval <span>=1.96</span>

<span>μ<span>=30±<span>(1.96×0.9486)</span></span><span>
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<span>μ <span>= 30 + 1.8594 = 31.8594</span></span>

Lower Limit

<span>μ <span>= 30 − 1.8594 = <span>28.1406</span></span></span>

<span><span><span>
</span></span></span>

<span><span><span>answer: 28.1406<u<31.8594</span></span></span>

3 0
3 years ago
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Rom4ik [11]

Answer:

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Step-by-step explanation:

6 0
3 years ago
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Alina [70]
The answer is 10 units.

8 0
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Olenka [21]

Answer:

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(b)

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So the volumn of shampoo should be 384.25ml to exceed 95% of containers.

7 0
3 years ago
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