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anastassius [24]
3 years ago
11

HELP PLEASE.. I WILL GIVE BRIANLIEST TYSM

Mathematics
2 answers:
tia_tia [17]3 years ago
7 0
what is the question?
vichka [17]3 years ago
6 0

Answer:

whats the question?

Step-by-step explanation:

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How do u solve y pluse 4 pluse 3(y pluse 2)
lesya [120]
Y + 4 + 3(y+2)    first distribute the 3
y + 4 + 3y + 6     then add like terms
4y + 10

therefore your answer should be  4y + 10
3 0
3 years ago
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Help me pleaseeeee somebody ASAP
tatyana61 [14]

Answer:

x = 12

Step-by-step explanation:

In similarity triangles angles are congruent.

∠D = ∠A

x² - 8x = 48

x² - 8x  - 48 = 0

x² + 4x  - 12x - 48 = 0

x(x + 4) - 12(x + 4) = 0

(x +4)(x - 12) = 0

x - 12 = 0     {Ignore x + 4 = 0, as measurements won't have negative values}

x = 12

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3 years ago
What is the answer to -|-9|
puteri [66]

Answer:

-9

Step-by-step explanation:

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3 years ago
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What is the final step in solving the inequality - 2(5 - 4x)< 6x - 4?
mezya [45]

Answer: X < 3

Step-by-step explanation:

-6 < -2x   -- Divide by -2

3 > x --- The sign flips when dividing in negative numbers.

Since three is greater than x

X is less than 3

meaning

X < 3

3 0
3 years ago
The Wall Street Journal reported that automobile crashes cost the United States $162 billion annually (2008 data). The average c
ivanzaharov [21]

Answer:

n=(\frac{2.326(500)}{120})^2 =93.928 \approx 94

So the answer for this case would be n=94 rounded up to the nearest integer

Step-by-step explanation:

Information given

\bar X represent the sample mean

\mu population mean (variable of interest)

\sigma= 500 represent the population standard deviation

n represent the sample size  

Solution to the problem

The margin of error is given by this formula:

ME=z_{\alpha/2}\frac{s}{\sqrt{n}}    (a)

And on this case we have that ME =120 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (b)

The confidence2 level is 98% or 0.98 then the significance level would be \alpha=1-0.98=0.02 and \alpha/2=0.01, the critical value for this case would be z_{\alpha/2}=2.326, replacing into formula (b) we got:

n=(\frac{2.326(500)}{120})^2 =93.928 \approx 94

So the answer for this case would be n=94 rounded up to the nearest integer

8 0
3 years ago
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