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
Liula [17]
2 years ago
12

Find the slope of the line that passes through (3, 11) and (10, 6).

Mathematics
1 answer:
igomit [66]2 years ago
5 0

Answer:

-5/7

Step-by-step explanation:

remember slope is eqaul to rise over run.

6-11 = -5 so it rose down by 5 units

10 - 3 = 7 so it ran 7 units

thus

slope= -5/7

You might be interested in
A psychologist obtains a random sample of 2020 mothers in the first trimester of their pregnancy. The mothers are asked to play
leva [86]

Answer:

First of all, we need to determine the system of hypothesis, which must have a null and alternative hypothesis.

In all hypothesis proof procedure, we must work with the null one, rejecting it or accepting it. If we reject the null hypothesis, it will mean that our principal hypothesis is true.

According to the problem, the null hypothesis must be: H_{o} : u = 100; because it says that 100 is the normal mean that is used.

The alternative hypothesis must be: H_{a} : u > 100; because the question is asking if there's enough evidence to say that they children have a higher IQ than 100.

Then, we must calculate the P-value, which is the probability value that we are gonna use to accept or reject the null hypothesis. This P-value we can calculate it with the formula: Z=\frac{x-u}{\frac{o}{\sqrt{n} } }; where x is the sample mean, u is the hypothetical mean parameter, o is the sample deviation and n is the sample.

Extracting all values from the problem: x = 104.3; u = 100; o = 14 and n = 20.

Applying all values to the formula: Z=\frac{104.3 - 100}{\frac{14}{\sqrt{20} } } = \frac{4.3}{\frac{14}{ 4.5} }=\frac{4.3}{3.1}=1.4

Then, this Z-value will give us the P-value by using the Z-table with the 0.05 level of significance. In table attached, we can see that the result is 0.9265. However, the P-value is 1 - 0.9265 = 0.735. We need to do this subtraction because, the result 0.9265 belong to the bigger area (as it's shown is the image in blue colour), and we need the smaller area, which belong to the 0.05 level of significance.

<em>In this problems, if the P-value is more than the level of significance, the null hypothesis is accepted. If the P-value is less than the level of significance the null hypothesis is rejected.</em>

Therefore, there is no enough evidence to say that the sample children have higher IQs, because the P-value is higher than the level of significance. (0.735>0.05).

5 0
3 years ago
Lucy wants to be exempt from her semester exam. In order for that to happen, she has to average an 85 over 3 test grades. Her fi
anastassius [24]

Answer:

<em>Grades to be scored in 3rd exam = 88</em>

Step-by-step explanation:

Given that average of 3 numbers is 85.

First two numbers are 81 and 86.

To find:

3rd number so that average is 85

Solution:

Let the third number = x

Formula for average is:

Average = \dfrac{Sum\ of\ numbers}{Total\ count\ of\ numbers}

Here, sum of numbers = 81+86+x =167+x

Total count of numbers = 3

85 = \dfrac{167+x}{3}\\\Rightarrow x=255-167\\\Rightarrow \bold{x=88}

<em>Grades to be scored in 3rd exam = 88</em>

8 0
3 years ago
Janae drew point A located at (-2,5), and point located at (6, -1). What is the x-coordinate of point B that bisects AC? ​
Sphinxa [80]

Answer:

The x coordinate is 2

Step-by-step explanation:

Given

A = (-2,5)

C = (6,-1)

Required

Determine the x coordinate of B

Since B is the bisector of AC, then B is the midpoint and will be calculated using;

B(x,y) = (\frac{x_1 + x_2}{2},\frac{y_1 + y_2}{2})

Considering the x coordinates alone;

x  = \frac{x_1 + x_2}{2}

Where

(x_1,y_1) = (-2,5)    and     (x_2,y_2) = (6,-1)

Substitute values for x1 and x2

x = \frac{-2 + 6}{2}

x = \frac{4}{2}

x = 2

<em>Hence;</em>

<em>The x coordinate is 2</em>

6 0
3 years ago
Whats the answer for to 3x-17+2x=13
ira [324]

Answer:

x = 6

Step-by-step explanation:

Given

3x - 17 + 2x = 13 ← simplify left side

5x - 17 = 13 ( add 17 to both sides )

5x = 30 ( divide both sides by 5 )

x = 6

4 0
3 years ago
Read 2 more answers
W = 4, x = 5, and y = 6
Luda [366]

Answer:

28, 28, 34, 34

Step-by-step explanation:

8x - (6 + y)

8(5) - (6 + 6)

40-12

28

w ¾ + x²

4(¾) + 5²

3 + 25

28

y² - 0.5w

6² - 0.5(4)

36 - 2

34

w / 4 + 3(x + y)

4 / 4 + 3(5 + 6)

1 + 3(11)

34

5 0
2 years ago
Other questions:
  • an airline ramp with a base of 50 makes an angle of 27 with the ground. find the distance a person will walk on a ramp round to
    8·1 answer
  • What does x equal if the circumference of a circle equals 113.04
    7·1 answer
  • What's 9 divided by 315
    10·2 answers
  • An airplane is flying at an altitude of 40,000 feet. To avoid turbulence the pilot descends at a rate of 2,000 feet / minute for
    12·1 answer
  • The law of cosines is used to find the measure of Z.
    14·2 answers
  • Between what two integers is 130?<br> 10 and 11<br> 11 and 12<br> 12 and 13<br> 13 and 14
    7·1 answer
  • Tuesday and Wednesday work
    12·1 answer
  • Can anyone please help with this
    5·2 answers
  • NEED HELP ASAP WILL GIVE BRAINLIEST REAL ANSWERS ONLY PLZ WILL REPORT FAKE ANSWERS
    11·1 answer
  • A triangle has and area of 42 cm2. The height of the triangle is 14cm What is the base and length
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!