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
jeka94
3 years ago
13

HELP PLEASE AND EXPLAIN PLEASE!!!!!

Mathematics
1 answer:
Oliga [24]3 years ago
3 0

Answer:

Cara is correct because there is a no fixed answer sign for the cara's answer and by probability you will observe that cara isnt sure that her answer is + or - but most probably the sign of her answer is positive but not surely so it is plus minus 17

You might be interested in
The amount, A, in milligrams, of radioactive material remaining in a container can be modeled by the exponential function A(t) =
lisov135 [29]

Answer: 4 years


Step-by-step explanation:

A(0) has to be amount at start. Assume that's 5mg

Then A(t) = 5×(0.5)^(0.25t) = 5×2^(-t/4),

(also known as 5 exp(-λ t) with λ = ln(2)/4, incidentally).


We need to such that A(t) = 2.5mg, or 2^(-t/4) is 1/2, which happens when -t/4 is -1, or t is 4.



4 0
4 years ago
On paper, make a rectangle that has points A and B as two of its vertices and has a perimeter of 40 units. Draw and label the tw
Westkost [7]

Answer:

A(x,y),B(x+10,y),C(x+10,y-10) \:and\: D(x,y-10)

Step-by-step explanation:

If a Rectangle has a perimeter of 40 units, then we can write that formula and find the a formula for the coordinates:

\left\{\begin{matrix}w+l=20 & \\ w*l=100 & \end{matrix}\right.\Rightarrow w=20-l\Rightarrow (20-l)l=100\Rightarrow -l^2+20l-100=0\Rightarrow l^2-20l+100\Rightarrow (l-10)(l-10)\Rightarrow l=10\therefore l=10\: and\: w=10

Therefore we can say:

A(x,y),B(x+10,y),C(x+10,y-10) \:and\: D(x,y-10)

Technically when w=lin this rectangle is a square, a degenerate square.

8 0
3 years ago
Find the equation of a line given the point and slope below. Arrange your answer in the form y = mx + b, where b is the constant
Dvinal [7]

Answer:

y = 2x + 1

Step-by-step explanation:

Given a point and the slope, we can plug in these values into the equation to find the value of b:

y = mx + b

3 = 2(1) + b

3 = 2 + b

1 = b

Plug b into the equation:

y = 2x + 1

6 0
3 years ago
Read 2 more answers
Need help ASAP! I’m very confused!
Ahat [919]

Answer:

4 would be your answer

Step-by-step explanation:

brainlesit pls

8 0
3 years ago
Question: a. You want to know how much gas it will take to for your entire road trip that is 750 miles. Write a proportion to so
sattari [20]
What is the question I see the answers but what is the question?
3 0
3 years ago
Other questions:
  • What is the difference in length between the shortest and longest worm?<br><br>I don't understand
    6·2 answers
  • A survey claims that 9 out of 10 doctors (i.e., 90% recommend brand z for their patients who have children. to test this claim a
    11·1 answer
  • kell works at an after-school program at an elementray school. on monday he work for 1.5 hours and recived 12.6 dollars, on tues
    10·1 answer
  • The position of an object at time t is given by s(t) = 3 - 4t. Find the instantaneous velocity at t = 8 by finding the derivativ
    10·2 answers
  • Preston and horation have 49 video games total. Horation has 11 more than preston. How many games does each person have?
    14·1 answer
  • The larger of two numbers is five more than twice the smaller number. The sum of the two numbers is 38. Find the numbers.
    8·2 answers
  • A person is trying to save up money, they make $162 a month starting February. If the person spent $10 a week on lunch. How much
    8·1 answer
  • I only need help with the third one​
    10·2 answers
  • Explain answer ! <br><br> Will give brainlst
    15·1 answer
  • Simplify.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!