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zimovet [89]
3 years ago
11

2 easy math questions!!!!!! Show work! Multiple choice!

Mathematics
2 answers:
elena55 [62]3 years ago
4 0
Greetings!

<u>Question Seven:</u>
To find the slope given two points, we can use the slope formula:
m= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}

Input the points: (-11,5) (-6,1)
m= \frac{1-5}{-6-(-11)}

Simplify the equation:
m= \frac{-4}{5}

A parallel slope would be identical to this slope. 

Therefore, the answer is B:
\boxed{m_{2}= \frac{-4}{5}}

-----------------------------------------------------------------------------------------------------------------

<u>Question Eight:</u>
This question essentially asks you to rearrange the equation into slope y-intercept form: 
y=mx+b

Rearrange the equation:
8x+7y=51

7y=-8x-51

y=\frac{-8x-51}{7}

y=\frac{-8}{7}x-\frac{51}{7}

The slope (rate of change) is \frac{-8}{7}

Therefore the answer is F:
\boxed{m=\frac{-8}{7} }

I hope this helped!
-Benjamin
hoa [83]3 years ago
4 0

Answer:

both problems are shown

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Mademuasel [1]

Using the Pythagorean theorem we get:

y^2+8^2=12^2.

Simplifying the above result we get:

y^2+64=144.

Subtracting 64 from the above equation we get:

\begin{gathered} y^2+64-64=144-64, \\ y^2=80. \end{gathered}

Therefore:

y=\sqrt{80}\approx8.9.

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1 year ago
When you flip a biased coin the probability of getting a tail is 0.34. Find the probability of getting a head.
koban [17]

Answer:

If you want to know what the probability is to get at least one Heads, then that is the same as the probability of all the events (100%, or 1) minus the probability of getting all Tails.

There are 100 coins. 99 are fair, 1 is biased with both sides as heads. With a fair coin, the probability of three heads is 0.53=1/8. The probability of picking the biased coin: P(biased coin)=1/100.

Step-by-step explanation:

5 0
3 years ago
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snow_tiger [21]

Answer:

0\leq x < infinite

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3 0
3 years ago
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Answer:

Step-by-step explanation:

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3 years ago
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ELEN [110]
Answer: 5

Step by step:

(3x+4)/2 = 9.5
3x+4 = 9.5*2
3x+4 = 19
3x = 19 -4
3x = 15
x = 5

7 0
3 years ago
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