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
Fantom [35]
3 years ago
12

Need ASAP i will give 10 points

Mathematics
1 answer:
kondor19780726 [428]3 years ago
5 0

Answer:

B) 1

Step-by-step explanation:

There are 8 pairs of data in the table but only 7 points plotted in the graph,

hence there must be 1 point that is missing from the graph.

It turns out that the missing point that was not plotted is (10, 2.5)

You might be interested in
Graph the rational function f(x) = x/x-9
vichka [17]

Answer:

see attached

asymptote at x = 9

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The diagram shows a cuboid. 4 cm 12 cm x cm the volume of the cube is 120cm² calculate the value of x​
Yanka [14]
The answer is 2.5 cm

First, you multiply 4 and 12, and you get 48
Then you take 120 and you divide it by 48.
This leaves you with 2.5
To check you multiply 2.5, 4, and 12
7 0
1 year ago
Read 2 more answers
The Half-life of a certain substance is 20 mins. You start with 45 mg of the substance
DochEvi [55]

a. Remaining amount after t minutes = 45 * (1/2)^{\frac{t}{20 }

b.  0.010986 mg

c. 109.84 minutes

Step-by-step explanation:

Step 1:

The decay of the substance is exponential. It is given that half life is 20 minutes and initially we start with 45 mg. So in 20 minutes we will have remaining amount 45/2, in 40 minutes remaining amount will be 45/4 etc.

This can be modeled by the equation:

Remaining amount after t minutes = Original amount * (1/2)^{\frac{t}{t_{1/2}  }

where  t_{\frac{1}{2}} represents the half life.

The half life for this substance is 20 minutes.

Hence the Remaining amount after t minutes = 45 * (1/2)^{\frac{t}{20 }

Step 2:

We need to calculate the amount remaining after 4 hours (240 minutes).

Substituting t = 240 in above equation we get

Amount remaining after 4 hours = 45 * (1/2)^{\frac{240}{20 } = 0.010986 mg

Step 3:

We need to calculate the time taken when 1 milligram is left. Substituting in the equation we get

1 = 45 * (1/2)^{\frac{t}{20 }  

Taking log on both sides we get

t = \frac{20 ln (1/45)}{ln 1/2} = 109.84 minutes

Time taken for 1 mg of the substance to be left = 109.84 minutes

Step 4 :

Answer :

a. Remaining amount after t minutes = 45 * (1/2)^{\frac{t}{20 }

b.  0.010986 mg

c. 109.84 minutes

7 0
4 years ago
If f(x) = x2 + 2x + 3, what is the average rate of change of Rx) over the interval (-4, 6]?
JulijaS [17]

Answer:

Step-by-step explanation:

The average rate of change of a function over an interval is simply the slope over the interval because:

let \: g(x)=f'(x)\\\frac{\int\limits^b_a {g(x)} \, dx }{b-a}(the\:average\:value\:of\:g)=\frac{f(b)-f(a)}{b-a}

We have to know f(6) and f(-4)

f(x) = x^2 + 2x + 3\\f(6) = 6^2 + 2(6) + 3\\f(6) = 36 + 12 + 3\\f(6) = 51\\\\f(-4) = (-4)^2 + 2(-4) + 3\\f(-4) = 16 - 8 + 3\\f(-4) = 11\\\\\frac{f(6)-f(-4)}{6-(-4)} = \frac{51-11}{10} = \frac{40}{10} = 4

3 0
3 years ago
2 2/3 divided by 2/4
Lyrx [107]
2 2/3 ÷ 2/4= 1/3

The answer is 1/3.
5 0
3 years ago
Other questions:
  • your middle school is having a carnival. Admission into the carnival is $8, and each game inside the carnival costs $0.50. How m
    12·1 answer
  • Help me please thank you
    8·2 answers
  • An open box of maximum volume is to be made from a square piece of cardboard, 24 inches on each side, by cutting equal squares f
    15·1 answer
  • I need help with math
    10·1 answer
  • What is the equation of the function that is graphed as line b?
    13·2 answers
  • Which of the following is being constructed in the image below?
    6·1 answer
  • Ely’s team scored 62, 76, 53, and 70 points in their first four basketball games. How many points does the team need to score in
    13·1 answer
  • Pls Hurry its timed
    5·1 answer
  • Which of the
    13·1 answer
  • Need help with these dont really understand geometrey teacher teaching algebra 2 badly
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!