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
zepelin [54]
3 years ago
9

One positive number is one more than another positrive number. The sum of the sqaures of the two numbers is 85. Find both positi

ve numbers.
Mathematics
1 answer:
adell [148]3 years ago
3 0
One number is x
second number is x+1
x²+(x+1)²=85
x²+x²+2x+1=85
2x²+2x-84=0
x²+x-42=0
(x+7)(x-6)=0
x=-7, x=6
we need positive number, so we take 6
x=6
x+1=7
You might be interested in
A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is 14.8 nm . What is the total wi
IrinaK [193]
Answer: 1539.2nm

The space between molecule is going as X-1 function. That mean 1 molecule doesn't have space, 2 molecules have 1 space, 3 molecules have 2 space. Then 105 molecules will be will have 104 space.
Each space is 14.8nm, the total  distance would be: 104 space x 14.8 nm/space= 1539.2nm
4 0
3 years ago
The height of a soccer ball that is kicked from the ground can be approximated by the function:
kumpel [21]
Why do you want me a little bit of
3 0
3 years ago
If f(x)=x-6/x, g(x)=x+4, and h(x)=3x-2, what is (h o f o g)(x)?
solong [7]

Answer:

C

Step-by-step explanation:

Just took the test

5 0
4 years ago
Read 2 more answers
Roy is twice as old as Joan, and in 3 years the sum of their ages will be 21 years. Find their present ages.
Lisa [10]

Answer:

Roy is 10 years old at present and Joan is 5 years old at present

Step-by-step explanation:

Let

x----> Roy's age

y----> Joan's age

we know that

x=2y ----> equation A

(x+3)+(y+3)=21 ----> equation B

substitute equation A in equation B

(2y+3)+(y+3)=21

solve for y

3y+6=21

3y=21-6

3y=15

y=5 years

Find the value of x

x=2y  ----> x=2(5)=10 years

therefore

Roy is 10 years old at present

Joan is 5 years old at present

8 0
3 years ago
8:3=____:90<br> What is the missing term in each pair of equivalent ratios
timurjin [86]
240 is the missing term in the pair of equivalent ratio
3 0
3 years ago
Read 2 more answers
Other questions:
  • A recent national survey found that high school students watched an average (mean) of 7.1 movies per month with a population sta
    7·1 answer
  • GEOMETRY HELP PLEASE!!!
    9·2 answers
  • Can someone help me with these? 25 points.
    10·2 answers
  • Please help me on the question on the bottom
    5·2 answers
  • Help help help help help 20 points
    8·1 answer
  • What’s 20, 48, and 8 as a decimal?? (I’ll give you brainlest because I’m awesome!)
    5·2 answers
  • Dilation of 2 about the origin
    6·1 answer
  • What is the surface area of the pyramid?
    7·2 answers
  • Amir is a collector. He currently has 397 rare stamps. Amir wants to double his collection. How many stamps will be in Amir's co
    14·2 answers
  • The gerneral form of the equation of a circle is x^2 + y^2 + 8x + 22y + 37=0
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!