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
anzhelika [568]
3 years ago
12

Find the slope between the points (2, -10) and (-4, 2). A) 1/4 B) -2 C) 4 D) -1/2

Mathematics
1 answer:
CaHeK987 [17]3 years ago
8 0

Answer:

B) -2

Step-by-step explanation:

m=(y2-y1)/(x2-x1)=(2-(-10))/(-4-2)=(2+10)/-6=12/-6=-2

You might be interested in
The probability that a student uses Smarthinking Online Tutoring on a regular basis is 0.31 . In a group of 21 students, what is
Ivenika [448]

Answer: 0.0241

Step-by-step explanation:

This is solved using the probability distribution formula for random variables where the combination formula for selection is used to determine the probability of these random variables occurring. This formula is denoted by:

P(X=r) = nCr × p^r × q^n-r

Where:

n = number of sampled variable which in this case = 21

r = variable outcome being determined which in this case = 5

p = probability of success of the variable which in this case = 0.31

q= 1- p = 1 - 0.31 = 0.69

P(X=5) = 21C5 × 0.31^5 × 0.69^16

P(X=5) = 0.0241

4 0
3 years ago
How do you do series with an n
SOVA2 [1]
The problem can be solved step by step, if we know certain basic rules of summation.  Following rules assume summation limits are identical.
\sum{a+b}=\sum{a}+\sum{b}
\sum{kx}=k\sum{x}
\sum_{r=1}^n{1}=n
\sum_{r=1}^n{r}=n(n+1)/2

Armed with the above rules, we can split up the summation into simple terms:
\sum_{r=1}^n{40r-21n+8}=n
=40\sum_{r=1}^n{r}-21n\sum_{r=1}^n{1}+8\sum_{r=1}^n{1}
=40\frac{n(n+1)}{2}-21n^2+8n
=20n(n+1)-21n^2+8n
=28n-n^2

=> (a) f(x)=28n-n^2
=> f'(x)=28-2n 
=> at f'(x)=0 => x=14
Since f''(x)=-2 <0  therefore f(14) is a maximum
(b) f(x) is a maximum when n=14

(c) the maximum value of f(x) is f(14)=196
4 0
2 years ago
Joey made strawberry jam and raspberry jam. He made enough strawberry jam to fill 1/2 of a jar. If he made 2/5 as much raspberry
olga_2 [115]

Answer:  1/5 of a jar

Step-by-step explanation:

1/2 times 2/5= .2 = 1/5.

7 0
3 years ago
Read 2 more answers
A scientist uses a submarine to study ocean life.
klasskru [66]

Answer:

278.2 \: ft

Step-by-step explanation:

Descended feet:

94 \: s \times 3.3 \:  \frac{ft}{s} \:  = 310.2 \: ft

Ascended feet:

32 \: s \times 1 \:  \frac{ft}{s}  = 32 \: ft

Total elevation:

(310.2 - 32) \: ft = 278.2 \: ft

8 0
2 years ago
Why does b have to be positive in exponential functions and why can’t it be 1?
faust18 [17]

Answer:

Well, "b" is just a variable. It's not really the function. I'm not quite sure what your asking. It can't be 1 because it can't. Math was founded on these mathematical laws. Consider talking to your teacher about this for further explanation.

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • For a Geometric Series explain how you can tell if the series converges or diverges as you keep adding an infinite number of ter
    7·1 answer
  • I NEED THIS ASAP!!!
    12·2 answers
  • 1/4 (g + 2) = 8<br><br> Thank you
    8·1 answer
  • Find out <br><img src="https://tex.z-dn.net/?f=%20%7B5%7D%5E%7B10%7D%20%2B%20%20%7B8%7D%5E%7B3%7D%20" id="TexFormula1" title=" {
    13·1 answer
  • The sum of two polynomials is 8d^5-3c^3d^2+5c^2d^3-4CD^4+9. If one added is 2d^5-c^3d^4+8CD^4+1, what is the other added
    11·1 answer
  • Write the word form and the expanded form for each <br><br> 1.7 &amp; 5.62
    14·2 answers
  • Help due in 30 mins!!!!
    14·2 answers
  • At a restaurant, Mike and his three friends decided to divide the bill evenly. If each
    14·2 answers
  • Ramil collected honey from 9 different beehives and recorded the amount collected, in gallons, from each hive in the line plot s
    14·2 answers
  • Which of the statements are true regarding dot plots bar graphs and historgrams
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!