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soldi70 [24.7K]
3 years ago
11

What is a point-slope equation of the line with slope -12 that goes through

Mathematics
1 answer:
Art [367]3 years ago
6 0
The answer is C. Remember that the equation for point slope form is y-y1=m(x-x1). In this one they give you x1, y1, and m which is your slope... the slope is -12 so m=-12. (x1,y1) is (5,3) so x1=5 and y1=3. Plugging all of these in you get y-3=-12(x-5) so your answer is C

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Tara's music teacher requires students to practice their instrument at least 9 hours each week. Tara usually spends 2.5 hours pr
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Answer:

She will need to practice 6.5 hours during Tuesday, Wednesday, and Thursday or 2.2 hours on each of the days she will practice.

Step-by-step explanation:

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There are 60 girls and 45 boys who want to participate in a co-ed basketball tournament. if each team must have the same number
ololo11 [35]

Answer:

15 teams, 4 girls and 3 boys on each team.

Step-by-step explanation:

What's the greatest common multiple of 60 and 45?  It's 15.

This is the greatest number of teams that can be formed.

60/15 = 4; thus, there will be 4 girls on each team.

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What is the value of b?<br><br> A. 100<br><br> B. 90<br><br> C. 80
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Answer: the answer is C. 80°

Step-by-step explanation:

= 360 - 110 - 90

=160°

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b=80°

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Read 2 more answers
Which of the following is equal to this expression? (256⋅64)^1/4
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Step-by-step explanation:

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3 years ago
A man who moves to a new city sees that there are two routes he could take to work. A neighbor who has lived there a long time h
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Answer:

The 95% confidence interval for the difference between the Route B and Route A commuting times is -3.771808 to 1.771808

Step-by-step explanation:

Here we have the confidence interval is given by the following equation;

\left (\bar{x}_1-\bar{x}_{2}  \right ) - z_{c}\sqrt{\frac{\sigma _{1}^{2}}{n_{1}}-\frac{\sigma _{2}^{2}}{n_{2}}}< \mu _{1}-\mu _{2}< \left (\bar{x}_1-\bar{x}_{2}  \right ) + z_{c}\sqrt{\frac{\sigma _{1}^{2}}{n_{1}}-\frac{\sigma _{2}^{2}}{n_{2}}}

\bar x_1 = 49 Minutes

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σ₂ = 4 Minutes

n₁ = n₂ = 10 days

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At 95%, from the z score table , z_c = \pm1.959964 ≈ ± 1.96

Plugging in the values Solving we get

Δμ Min = -3.771808 and Δμ Max = 1.771808.

8 0
3 years ago
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