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
nasty-shy [4]
3 years ago
14

The endpoints of jk are j(-8,0) and k(1,4). find the length of jk

Mathematics
1 answer:
Alex787 [66]3 years ago
6 0

Answer:

9.8

Step-by-step explanation:

use the formula

distance=✓[{x2-x1}+{y2-y1}]

You might be interested in
what is the actual length of the living space if the length of the scale drawing is 16.8 centimeters ? ​
Leto [7]

Answer:

21 cm

Step-by-step explanation:

8 0
2 years ago
What is margin of error??
Tems11 [23]

Answer:

The margin of error for a sample size of 250 is 6

Step-by-step explanation:

The margin of error is given as

1/square root of the sample size

Thus, margin of error for a sapless size of 250 is

1/√250

= 1/15. 811

= 6

8 0
3 years ago
What's the probability you roll an even number on a number cube given that you've already rolled a 3?
lara [203]
Suppose you roll a red number cube and a blue number cube. What is the probability that you will roll a 5 on the red cube and a 1 or 2 on the blue cube?
6 0
3 years ago
WHat is the missing height?
ololo11 [35]

Answer:

w = 4 cm

Step-by-step explanation:

recall that the area of a triangle is given by

A = (1/2) x base length x height

we are given:

A = 10 cm²

base length = 5 cm

height = w

substituting the values above into the equation,

A = (1/2) x base length x height

10 = (1/2) x 5 x w

20 = 5w

w = 20/5

w = 4 cm

3 0
3 years ago
Read 2 more answers
Find the 13th term of the arithmetic sequence -3x – 1,42 + 4,112 + 9, ...
Strike441 [17]

Answer:

The 13th term is 81<em>x</em> + 59.

Step-by-step explanation:

We are given the arithmetic sequence:

\displaystle -3x -1, \, 4x +4, \, 11x  + 9 \dots

And we want to find the 13th term.

Recall that for an arithmetic sequence, each subsequent term only differ by a common difference <em>d</em>. In other words:

\displaystyle \underbrace{-3x - 1}_{x_1} + d = \underbrace{4x + 4} _ {x_2}

Find the common difference by subtracting the first term from the second:

d = (4x+4) - (-3x - 1)

Distribute:

d = (4x + 4) + (3x + 1)

Combine like terms. Hence:

d = 7x + 5

The common difference is (7<em>x</em> + 5).

To find the 13th term, we can write a direct formula. The direct formula for an arithmetic sequence has the form:

\displaystyle x_n = a + d(n-1)

Where <em>a</em> is the initial term and <em>d</em> is the common difference.

The initial term is (-3<em>x</em> - 1) and the common difference is (7<em>x</em> + 5). Hence:

\displaystyle x_n = (-3x - 1) + (7x+5)(n-1)

To find the 13th term, let <em>n</em> = 13. Hence:

\displaystyle x_{13} = (-3x - 1) + (7x + 5)((13)-1)

Simplify:

\displaystyle \begin{aligned}x_{13} &= (-3x-1) + (7x+5)(12) \\ &= (-3x - 1) +(84x + 60) \\ &= 81x + 59 \end{aligned}

The 13th term is 81<em>x</em> + 59.

3 0
3 years ago
Other questions:
  • Sam is 3 years younger than marco. marco is 15. how old is sam ? This is only 2 answer question
    6·2 answers
  • A country's population in 1992 was 72 million. In 1998 it was 76 million. Estimate the population in 2012 using the exponential
    7·1 answer
  • IMPORTANT PLASE ANSWER BEFORE 4:00 PM!!!! What numbers are a distance of 9 units from −5 on a number line? Drag and drop each of
    5·2 answers
  • Find the price per unit for each item, then choose the best buy. a. Cereal, 10 oz. box for $5.90 would b. Cereal, 24 oz. box for
    8·2 answers
  • How do you solve it
    8·1 answer
  • commander wished to arrange his 8,000 soldiers in the form of a square how many more will be required to complete the square
    7·1 answer
  • A circle has a radius of 14 feet. What is the exact area of the circle and what is the approximate area of the circle and What i
    12·2 answers
  • This is an important test please help.
    5·2 answers
  • The answer=ajshabeel
    6·1 answer
  • A + b - b = <br> what is it plzz help
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!