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
Mama L [17]
3 years ago
12

The sum of two integers is 63 and their difference is 7. Find the integers.

Mathematics
1 answer:
hichkok12 [17]3 years ago
7 0

28 and 35 because

the difference between the two integers must be 7 and 28 + 7 = 35

and 28 + 35 = 63

You might be interested in
Marine biologists are concerned that pollution from a nearby factory has affected the health of local sea urchins. Which of the
Ivanshal [37]

Answer:

its C. all of the sea urchin in the entire ovean is the most likely to be the population of interest

8 0
2 years ago
Jackson pays $18 per month for his phone service, plus $0.07 for each long distance minute used. Which of the following correctl
Ksenya-84 [330]
Its b, no matter what, he has to pay 18 dollars which effects the y intercept
4 0
3 years ago
Read 2 more answers
A biologist is studying the growth of a particular species of algae. She writes the fall inclusion to show the radius of the alg
horrorfan [7]

Answer:

Part A)

A reasonable domain to plot the growth function is:

0\leq d \leq 12

Part B)

The <em>y-</em>intercept represents that when the biologist started her study, the radius of the algae was five millimeters.

Part C)

The average rate of change from <em>d</em> = 4 to <em>d</em> = 11 was about 0.11. This means that from the 4th day to the 11th, the radius of the algae grew, on average, at a rate of 0.11 mm per day.

Step-by-step explanation:

The radius of the algae f(d) in millimeters after <em>d</em> days is given by the function:

f(d)=5(1.02)^d

Part A)

We know that the radius of the algae was approximately 6.34 mm when the biologist concluded her study. To find the reasonable domain, we can substitute 6.34 for f(d) and solve for <em>d</em>. Therefore:

6.34=5(1.02)^d

Divide both sides by five:

(1.02)^d=1.268

Take the log of both sides with base 1.02:

\displaystyle d=\log_{1.02}1.268

Using the Change of Base Property, evaluate for <em>d: </em>

<em />\displaystyle d=\frac{\log 1.268}{\log 1.02}=11.9903...\approx 12<em />

So, the biologist concluded her study after 12 days.

Therefore, a reasonable domain to plot the growth function is:

0\leq d\leq 12

Part 2)

The <em>y-</em>intercept of the function is when <em>d</em> = 0. Find the <em>y-</em>intercept:

f(0)=5(1.02)^{(0)}=5(1)=5

Since <em>d</em> represent the amount of days after the study had begun, the <em>y-</em>intercept represents the radius of the algae on the initial day.

So, when the biologist started her study, the radius of the algae was five millimeters.

Part 3)

To find the average rate of change for a nonlinear function, we find the slope between the two endpoints on the interval.

We want to find the average rate of change of f(d) from <em>d</em> = 4 to <em>d</em> = 11.

Find the endpoints:

f(4)=5.4121...\text{ and } f(11)=6.2168...

And find the slope between them:

\displaystyle m=\frac{f(11)-f(4)}{11-4}=0.1149...\approx 0.11

Since f(d) measures millimeters and <em>d</em> measures days, this tells us that, on average, the radius of the algae grew by about 0.11 mm per day from the 4th day to the 11th day.

5 0
2 years ago
A teacher askes four students to write three measurements that will make more than one triangle and explain why. The table shows
LenaWriter [7]

Answer:

. hello .

Step-by-step explanation:

Hi. hello. mhm..........

6 0
2 years ago
Read 2 more answers
What is 20% of 40%? <br> Choices: 50% 75% 100% 200% <br> Which is it?
ki77a [65]

I think it's 8%

Step-by-step explanation:


3 0
2 years ago
Read 2 more answers
Other questions:
  • Which number is NOT in the solution set of the inequality x &gt; −15?
    8·2 answers
  • An electrician charges a $50 fee to make a service call plus $25 per hour he works. write an equation to represent the relations
    11·1 answer
  • find two consecutive odd numbers such that the sum of the larger number and twice the smaller number is 27 less than four times
    6·1 answer
  • Find the value of this expression if x = 5
    6·2 answers
  • There are 22 fourth grade students and 26 fifth grade students who became cheerleaders. Each cheerleadering group will 8 members
    11·1 answer
  • HELP WILL MARK BRAINLYEST WoW
    15·1 answer
  • ILL MARK AS BRAINLESS HELP PLS
    7·2 answers
  • Can someone do these two questions for me please. I have a lot of homework to do and I'm trying to get a lot of questions done a
    11·2 answers
  • When multiplying two negative numbers, what kind of number does one always get for an answer?
    13·2 answers
  • A regular pentagon has a perimeter of 15x+35<br> What is the length of one side of the pentagon?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!