1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
puteri [66]
2 years ago
12

What is the slope of the line passing through the points (-3,4) and (4,-1)

Mathematics
1 answer:
Serhud [2]2 years ago
8 0

Answer:

slope = - \frac{5}{7}

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 3, 4) and (x₂, y₂ ) = (4, - 1)

m = \frac{-1-4}{4+3} = - \frac{5}{7}

You might be interested in
Please solve for X and find the measure of B
Vitek1552 [10]

Answer:

Step-by-step explanation:

A and B are both equal (corresponding parts)

A = B

5x - 5 = 3x + 13               Add 5 to both sides

5x = 3x + 13 + 5              Combine

5x = 3x + 18                    Subtract 3x from both sides

5x - 3x = 18                     Combine

2x = 18                            Divide by 2

2x/2 = 18/2

x = 9            

Angle B

B = 3x + 13                      Let x = 9

B = 3*9 + 13

B = 27 + 13

Angle B = 40

5 0
2 years ago
What is log(4k-5)=log(2k-1)?
Paha777 [63]
Log(4k - 5) = log(2k - 1)
log(4k) - log(5) = log(2k) - log(1)
0.6020599913k - 0.6989700043 = 0.3010299957k - 0
0.6020599913k - 0.6989700043 = 0.3010299957k
<u>-0.6020599913k                            -0.6020599913k</u>
                           <u>-0.6989700043</u> = <u>-0.3010299957k</u>
                           -0.3010299957     -0.3010299957
                              2.321928094 = k
7 0
3 years ago
The line of best fit is also known as the _
bearhunter [10]

Answer:

the regression line

Step-by-step explanation:

5 0
2 years ago
Professor Halen teaches a College Mathematics class. The scores on the midterm exam are normally distributed with a mean of 72.3
lbvjy [14]

Answer:

14.63% probability that a student scores between 82 and 90

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 72.3, \sigma = 8.9

What is the probability that a student scores between 82 and 90?

This is the pvalue of Z when X = 90 subtracted by the pvalue of Z when X = 82. So

X = 90

Z = \frac{X - \mu}{\sigma}

Z = \frac{90 - 73.9}{8.9}

Z = 1.81

Z = 1.81 has a pvalue of 0.9649

X = 82

Z = \frac{X - \mu}{\sigma}

Z = \frac{82 - 73.9}{8.9}

Z = 0.91

Z = 0.91 has a pvalue of 0.8186

0.9649 - 0.8186 = 0.1463

14.63% probability that a student scores between 82 and 90

3 0
3 years ago
Points that don't belong to any line​
svetlana [45]

Answer:

Noncollinear points

Step-by-step explanation:

Collinear points lie on the same line. Noncollinear points are the opposite.

3 0
2 years ago
Other questions:
  • Y + 1/5 = 3x in standard form A. 15x + 5y = -1. B. 5x — 15y = 1. C. 5x — 15y = -1. D. 15x — 5y = 1.
    12·1 answer
  • Function domain word problems. 49 points! Please and thank you ^-^
    11·2 answers
  • Evaluate the function for x=3; f(x)= -2x+10<br><br> please show your work
    13·2 answers
  • An arcade booth at a county fair has a person pick a coin from two possible coins available and then toss it. If the coin chosen
    11·1 answer
  • Determine perimeter
    7·2 answers
  • Which table shows a function that is decreasing only over the interval (–1, 1)?
    15·2 answers
  • 989.5 rounded to the nearest whole number
    7·1 answer
  • Mr. Tan had 45 kilogram of rice. He gave 13.56 kg to his brother and 5. 78 kg to his neighbor Ryan. How many kilograms of rice w
    5·1 answer
  • What is the inverse of the function y-2 = 7x?
    8·1 answer
  • The table represents a linear function.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!