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
belka [17]
2 years ago
12

1) (-7.-3).(-5, -8) What’s the distance between each pair?

Mathematics
2 answers:
r-ruslan [8.4K]2 years ago
8 0

Answer:

(-2,-5)

Step-by-step explanation:

anyanavicka [17]2 years ago
7 0

Answer:

-2.5

Step-by-step explanation:

You might be interested in
A pew research Center project on the state of news media showed that the clearest pattern of news audience growth in 2012 came o
KengaRu [80]

Answer:

Step-by-step explanation:

Given that:

the sample proportion p = 0.39

sample size = 100

Then np = 39

Using normal approximation

The sampling distribution from the sample proportion is approximately normal.

Thus, mean \mu _{\hat p} = p = 0.39

The standard deviation;

\sigma = \sqrt{\dfrac{p(1-p)}{n} }

\sigma = \sqrt{\dfrac{0.39(1-0.39)}{100} }

\sigma = 0.048

The test statistics can be computed as:

Z = \dfrac{{\hat _{p}} - \mu_{_ {\hat p}} }{\sigma_{\hat p}}

Z = \dfrac{0.3 - 0.39 }{0.0488}

Z = -1. 8 4

From the z - tables;

P (\hat p \le 0.3 ) = P(z \le -1.84)

\mathbf{P (\hat p \le 0.3 ) = 0.0329}

(b)

Here;

the sample proportion = 0.39

the sample size n = 400

Since np = 400 * 0.39 = 156

Thus, using normal approximation.

From the sample proportion, the sampling distribution is approximate to the mean \mu_{\hat p} =  p = 0.39

the standard deviation \sigma_{\hat p} = \sqrt{\dfrac{p(1-p)}{n} }

\sigma_{\hat p} = \sqrt{\dfrac{0.39 (1-0.39)}{400} }

\sigma_{\hat p} =0.0244

The test statistics can be computed as:

Z = \dfrac{{\hat _{p}} - \mu_{_ {\hat p}} }{\sigma_{\hat p}}

Z = \dfrac{0.3 - 0.39 }{0.0244}

Z = -3.69

From the z - tables;

P (\hat p \le 0.3 ) = P(z \le -3.69)

\mathbf{P (\hat p \le 0.3 ) = 0.0001}

(c) The effect of the sample size on the sampling distribution is that:

As sample size builds up, the standard deviation of the sampling distribution decreases.

In addition to that, reduction in the standard deviation resulted in increases in the Z score, and the probability of having a sample proportion  that is less than 30% also decreases.

6 0
3 years ago
A bond is initially bought for $250. It doubles in value every decade.Write an equation relating v, the value of the bond, to d,
Juliette [100K]

Answer:

V=250(2d)

Step-by-step explanation:

5 0
3 years ago
A passenger truck has a capacity of 40 people. If only 80% of their seats are occupied. How many passengers are in the truck?
quester [9]

Answer:

32

Step-by-step explanation:

80 x 40 = 3,200

3,200 / 100 = 32

4 0
3 years ago
A regression analysis between sales (y in $1000) and advertising (x in dollars) resulted in the following equation y = 50,000 +
Vikentia [17]

Answer:

D. increase of $1 in advertising is associated with an increase of $6,000 in sales.

Step-by-step explanation:

Every dollar in advertisting is multiply by 6 in the equation, but every unit in y represent $1000. That means that $1 1n advertisting is multiply by 6 and then by $1000, that is $1 in advertisting = $6000 in sales.

4 0
3 years ago
250 students in a high school senior class are surveyed about what majors they intend to declare in college. Of the 250 students
Vilka [71]

Answer:

Program C allows students to earn a Mathematics degree (B.A. or B.S.) by combining courses in the Department of Mathematics with courses from one other department.  In most areas of specializations, mathematical and/or quantitative courses in other departments are part of the math degree program.  All Program C students take a minimum of five core math courses:  Calculus I, Calculus II, Calculus III, Introduction to Linear Algebra, and a proofs course, usually either Introduction to Abstract Algebra or Fundamental Properties of Spaces and Functions I.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • A 20 foot ladder is placed against a wall at a 75 degree angle with the ground. The wall is perpendicular to the ground. How hig
    5·1 answer
  • The average sneeze can travel 3/100 mine in 3 secounds. At this rate hiw fst can it travel in one minute? (3 secounds =1/20 minu
    5·1 answer
  • Can you help me please?
    13·1 answer
  • What is the equation 4x-8=7x-35
    14·2 answers
  • The equation of a line is 4x−3y=−24 .
    5·1 answer
  • five gymnasts are entered into a competition. Assuming that there are no ties, how many ways can first, second, and third places
    5·1 answer
  • Evaluate a² + 2b when a = ⅘, and b = ⅖
    10·2 answers
  • Meghan has two less dimes as she does nickels and one more than double the amount of quarters as she does nickels for a total of
    5·1 answer
  • An ice cream stand sells chocolate, vanilla, and strawberry ice cream as well as a choice of 22 toppings. how many choices are t
    10·1 answer
  • (−1)^3⋅(−1)^2<br> simplify
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!