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
kykrilka [37]
3 years ago
11

The sum of two numbers is 11. The sum of their squares is 65. Find the numbers. (How do you get the answer?)

Mathematics
1 answer:
Stels [109]3 years ago
7 0
X is the number
<span>The sum of two numbers is 11, so other number is : 11 - x

</span><span>The sum of their squares is 65
</span>
x^2 + (11 - x)^2 = 65
x^2 + 121 - 2(x)(11) + x^2 = 65
2x^2 - 22x + 121 = 65
2x^2 - 22x + 121 -  65 = 0
2x^2 - 22x + 56 = 0
2(x^2 - 11x + 28) = 0
2(x - 7)(x -4 ) = 0
x - 7 = 0
x = 7

x - 4 =0
x =4

answer: the numbers are 4 and 7

double check:

<span>sum of two numbers is 11:
4 + 7 = 11

</span><span>The sum of their squares is 65
</span><span>4^2 + 17^2 = 16 + 49 = 65

</span>
You might be interested in
The values of the 2s in 2,201,538 are.
Ronch [10]

Answer:

First Two: 2 million,

Second Two: 2  hundred thousand

8 0
3 years ago
You will be brainliest please list correct answer and the mistake he made
anzhelika [568]

<em>Hey There!!</em>

<em>The answer is below!!</em>

Step-by-step explanation:

We move all terms to the left:

-6n+22-(-4n+14-10n+22)=0

We add all the numbers together, and all the variables

-6n-(-14n+36)+22=0

We get rid of parentheses

-6n+14n-36+22=0

After that, We add all the numbers together, and all the variables

8n-14=0

Then, We move all terms containing n to the left, all other terms to the right

8n=14

n=14/8

n=1+3/4

<em>I don't know this is </em>100% right....

So.....GoodLuck!!

#Be Bold

#Always Brainly!

_{Loserbrazts}

5 0
3 years ago
50 points! Someone actually help instead of putting random answers! Random answers will be reported
In-s [12.5K]

<em>If</em><em> </em><em>you</em><em> </em><em>only</em><em> </em><em>want</em><em> </em><em>to</em><em> </em><em>see</em><em> </em><em>the</em><em> </em><em>way</em><em> </em><em>i do</em><em> </em><em>it</em><em> </em><em>to</em><em> </em><em>get</em><em> </em><em>the</em><em> </em><em>answer</em><em> </em><em>without</em><em> </em><em>seeing</em><em> </em><em>my</em><em> </em><em>explanation</em><em> </em><em>ignore</em><em> </em><em>sentences</em><em> </em><em>with</em><em> </em><em>symbol</em><em> </em><em>'</em><em>#</em><em>'</em>

<h2>Answer</h2>

•Pic on the left

x = 8.36

y = 140.18°

• Pic on the right

x = 110°

<h2>Way to do</h2>

• This one for the pic on the left

#Since the total degree of a triangle is 180° and one of the side known 90° (L) so the rest must be 90° (180° - 90° = 90°)

#known that the other side of triangle degree is (5x - 2)° and 6x° so... u can find the x! :D

90 = (5x - 2) + 6x

90 = 11x - 2

90 + 2 = 11x

92 = 11x

x = 92 : 11

x = 8.36 (2 decimal places)

#Now you know the x, you can now find the degree

#degree of (5x - 2)

5x - 2 =

5(8.36) - 2 =

41.81 - 2 = 39.81

#Since the y° is in the other side of the line of degre 39.81°, you can find it by minus it with 180° (straight line with no degree is 180°)

180° - 39.81° = 140.18

•This one for the pic on the right

#Lol this one is easy. I already told you before that the straight line degree is 180° and you can find one of the side if you know one of the degree side, so you can find it.

# Also as i said before, total triangle degree is 360°

#Find the degree of the other side of x° (only can find the degree of other side x because its inside the triangle)

Degree = 180° - 80° - 30° = 70°

#Now you can get x

x = 180° - 70° = 110°

<h2>For moderators that see this</h2>

#Moderators please don't be mean, dont delete my answers just for approval from your senior or just to get the biggest moderation daily rank. This answer is long, how can you just instanly delete it? :(

7 0
3 years ago
Read 2 more answers
Can someone say what 45-49 is with regrouping? thanks!
muminat

Answer:

it's -4 i don't know what you mean by regrouping, sorry

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find the minimum sample size needed to be 99% confident that the sample's variance is within 30% of the population's variance.
liq [111]

The Minimum sample size table is attached below

Answer:

X=173

Step-by-step explanation:

From the question we are told that:

Confidence Interval CI=99\%

Variance \sigma^2=30\%

Generally going through the table the

Minimum sample size is

X=173

7 0
2 years ago
Other questions:
  • Which is an irrational number?
    10·1 answer
  • How do you label vertices on an image figure?
    8·1 answer
  • Marco has a collection of 38 state quarters. If 3/5 of his quarters are dated 2005, what is the approximate value of the quarter
    14·1 answer
  • Find the missing length. If needed route to the nearest 10th. The length of X is? PLEASE ANSWER AND EXPLAIN PLEASEEE
    11·1 answer
  • A = (b*h) / 2 or A = :½ b*h. or A = 0.5*b*h <br>​
    10·1 answer
  • What is the sum of 4.2 × 105 and 5.3 × 105?
    13·2 answers
  • Plz I'm sooooo confuzzled: If you reflect any shape across the x-axis and then across the y-axis, do you get the same result tha
    12·2 answers
  • How many feet is in 3 miles 100 feet
    9·1 answer
  • Enter each answer as a whole number. pls help asap
    11·1 answer
  • What is FG?<br><br> NEED HELP QUICK!!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!