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
AnnyKZ [126]
3 years ago
8

We know the following about the numbers a, b and c:

Mathematics
1 answer:
labwork [276]3 years ago
3 0

Step-by-step explanation:

(a + b)² = 9

(b + c)² = 25

(a + c)² = 81

Taking the square root:

a + b = ±3

b + c = ±5

a + c = ±9

By adding these three equations together and dividing both sides by 2, we get the value of a + b + c.

Possible combinations for a + b + c such that the sum is greater than or equal to 1 are:

a + b + c = (-3 + 5 + 9)/2 = 11/2

a + b + c = (3 − 5 + 9)/2 = 7/2

a + b + c = (3 + 5 + 9)/2 = 17/2

You might be interested in
Estimate 49.419-27.276 by first rounding each number to the nearest thousand.
Wewaii [24]

Answer:

22.143

Step-by-step explanation:

49.419-27.276=22.143

6 0
3 years ago
Alyssa had Pokemon cards. she gave 8 to her friends she now has 5 Pokemon cards left how many Pokemon cards did she have to star
Stolb23 [73]

Answer:

She had 13 pokemon

Step-by-step explanation:

5 + 8 is 13

7 0
3 years ago
Read 2 more answers
What does 5/7c=13/14 equal
natita [175]
To find c, you must isolate it.
To do this, you must divide both sides by 5/7, since that is being multiplied by c and you must do the inverse to it to cancel it out in order to leave c by itself.

5/7c ÷ 5/7 = c

13/14 ÷ 5/7
To divide fractions, follow these steps:
Step 1- Turn the second fraction, 5/7 in this case, into its reciprocal. This means swapping the places of the numerator and denominator.
5/7 reciprocal = 7/5

Step 2- multiply the original first fraction and reciprocal second fraction.
13/14 • 7/5
13 • 7 = 91
14 • 5 = 70
13/14 ÷ 5/7 = 91/70

Step 3- Simplify if possible.
91/70
Since 70 can go into 90, you can turn this into a mixed number.
1 and 21/70
Now simplify 21/70.
Both can be divided by 7.
21 ÷ 7 = 3
70 ÷ 7 = 10
So simplified, 91/70 equals 1 and 3/10.
As a decimal, this is 1.3.

So the answer is c = 1.3, or 1 and 3/10.

Hope this helps :)
8 0
3 years ago
Y = 4x + 6
OlgaM077 [116]

Answer:

A

Step-by-step explanation:

y=4x+6

y=6-4x

y=12

y=4x+6

12=4x+6

12-6=4x

6/4=4x/4

x=3/2

5 0
2 years ago
Read 2 more answers
My question is in the picture as well as the problem.​
Harrizon [31]

Answer:

Smallest to largest:

1 out of 10, 2/5, 2 out of 3, .75, 7/8

Step-by-step explanation:

An easy way to do this is to write each in decimal form

2/3 = .666666......

2/5 = .4

7/8 = .875

.75

1/10 = .10

Smallest to largest:

1 out of 10, 2/5, 2 out of 3, .75, 7/8

7 0
3 years ago
Other questions:
  • What is the slope of the line described by the equation below?
    7·2 answers
  • Will mark brainliest if answered correctly!
    10·1 answer
  • Kai buys 6 fiction books and 4 nonfiction books.
    9·2 answers
  • What is the slope of the line represented by the equation y=2
    14·1 answer
  • 6y-3g+2y-4g???????????
    15·1 answer
  • Calculate the average rate of change of the given function over the given interval. Where appropriate, specify the units of meas
    5·1 answer
  • Please please help!!!!!
    6·1 answer
  • Write the percent as a decimal.<br> 1. 66.7%
    10·2 answers
  • Scott trained for the marathon.
    7·1 answer
  • Please show work 3d – 4 + d = 8d – (-12)
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!