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
sveta [45]
1 year ago
7

Can someone do this for me please?! Just the answer pls

Mathematics
1 answer:
Akimi4 [234]1 year ago
7 0

Answer:

I was able to solve questions 2 through 4 using the, "center = (h, k)" formula.

2. (3, -1)

3. (1, 2)

4. (-5, 2)

<em>Hope it helps.</em>

You might be interested in
90% of what number is 57
aliina [53]
To solve this, set up the equation, 90% of x being .9*x=57. Then, solve for x, x=57/.9=6 \frac{1}{3}=6.333
4 0
3 years ago
What is the estimate of 119÷23.3
Crank
Your answer would be 5.10... Hope this helps :)
6 0
2 years ago
The half life of a radioactive substance is the time it takes for a quantity of the substance to decay to half of the initial am
Veronika [31]

Using an exponential function, it is found that:

a) N(t) = 75(0.5)^{\frac{t}{3.8}}

b) 37.5 grams of the gas remains after 3.8 days.

c) The amount remaining will be of 10 grams after approximately 11 days.

<h3>What is an exponential function?</h3>

A decaying exponential function is modeled by:

A(t) = A(0)(1 - r)^t

In which:

  • A(0) is the initial value.
  • r is the decay rate, as a decimal.

Item a:

We start with 75 grams, and then work with a half-life of 3.8 days, hence the amount after t daus is given by:

N(t) = 75(0.5)^{\frac{t}{3.8}}

Item b:

This is N when t = 3.8, hence:

N(t) = 75(0.5)^{\frac{3.8}{3.8}} = 37.5

37.5 grams of the gas remains after 3.8 days.

Item c:

This is t for which N(t) = 10, hence:

N(t) = 75(0.5)^{\frac{t}{3.8}}

10 = 75(0.5)^{\frac{t}{3.8}}

(0.5)^{\frac{t}{3.8}} = \frac{10}{75}

\log{(0.5)^{\frac{t}{3.8}}} = \log{\frac{10}{75}}

\frac{t}{3.8}\log{0.5} = \log{\frac{10}{75}}

t = 3.8\frac{\log{\frac{10}{75}}}{\log{0.5}}

t \approx 11

The amount remaining will be of 10 grams after approximately 11 days.

More can be learned about exponential functions at brainly.com/question/25537936

4 0
2 years ago
Solve and graph the absolute value inequality: |2x + 4| &gt; 14.
katrin2010 [14]
Hi Malik.
2x+4>14 or -(2x+4)>14
solve each inequality individually
you get 
x>5 or x<-9
3 0
3 years ago
7z/4+5x if z=8 and x=3 PLEASE HELP THIS IS DUE IN 20 MINS.
Taya2010 [7]

Answer:

29

Step-by-step explanation:

7(8)/4+5(3)

56/4+15

14+15

29

5 0
2 years ago
Other questions:
  • Lakshmi has had a checking account for over twenty years and has always gotten money from her bank by cashing a check. She would
    15·2 answers
  • Skylar needs $56 to buy a new video game. If he doubles the amount of money he has now, he will have enough to buy the game with
    15·1 answer
  • How do you use benchmark to estimate 2.81 + 3.72
    9·1 answer
  • Data set A: 3,4,6,12,16,17,19
    14·1 answer
  • Plz help me!!! Will give brainliest
    8·1 answer
  • What is the measure of DBA in the diagram below?
    14·1 answer
  • there are 700 lockers on the 6th grade hallway. three fifths of the lockers are being used. how many lockers are not being used
    7·2 answers
  • Four different lines are drawn on a coordinate plane. The lines all pass through the origin each each line passes through one po
    15·1 answer
  • Does the table below represent a function?
    12·2 answers
  • Find m<br> …………….. ………….. …………..
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!