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
jeka57 [31]
3 years ago
9

Algebra 2 question need help thanks.​

Mathematics
1 answer:
zysi [14]3 years ago
4 0
B is the correct answer
You might be interested in
The sum of three numbers $x$ ,$y$, $z$ is 165. When the smallest number $x$ is multiplied by 7, the result is $n$. The value $n$
babymother [125]

You're given

<em>x</em> + <em>y</em> + <em>z</em> = 165

7<em>x</em> = <em>n</em>

<em>n</em> = <em>y</em> - 9

<em>n</em> = 9 + <em>z</em>

and you want to find <em>xyz</em>.

Solve the last three equations for <em>x</em>, <em>y</em>, and <em>z</em> :

7<em>x</em> = <em>n</em>   →   <em>x</em> = <em>n</em>/7

<em>n</em> = <em>y</em> - 9   →   <em>y</em> = <em>n</em> + 9

<em>n</em> = 9 + <em>z</em>   →   <em>z</em> = <em>n</em> - 9

Substitute <em>x</em>, <em>y</em>, and <em>z</em> into the first equation and solve for <em>n</em> :

<em>n</em>/7 + (<em>n</em> + 9) + (<em>n</em> - 9) = 165

<em>n</em>/7 + 2<em>n</em> = 165

<em>n</em> + 14<em>n</em> = 1155

15<em>n</em> = 1155

<em>n</em> = 77

Now solve for <em>x</em>, <em>y</em>, and <em>z</em> :

<em>x</em> = 77/7 = 11

<em>y</em> = 77 + 9 = 86

<em>z</em> = 77 - 9 = 68

Then the product is

<em>xyz</em> = 11 • 86 • 68 = 64,328

6 0
3 years ago
If 2 lines intersect then they in exactly one point
svlad2 [7]
<span>Postulate 1-2

I believe</span>
4 0
3 years ago
Read 2 more answers
Hi I’m bored UwU<br> So who wanna talk?
ryzh [129]
Sureeeeeeeeeeeeeeeeeeee
3 0
3 years ago
-7r2 + 7r + 2 = 2<br> Find Discriminant
victus00 [196]

Answer:

r = 1 , 0

Step-by-step explanation:

-7r^{2} + 7r + 2 = 2

-7r(r-1)=2-2

-7r(r-1)=0

r-1=0

r=1

5 0
3 years ago
Read 2 more answers
Past experience has indicated that the breaking strength of yarn used in manufacturing drapery material is normally distributed.
OLEGan [10]

Answer: the value of population standard deviation is 3.87

Step-by-step explanation:

From the information given,

Number of sample, n = 8

For a confidence level of 95%, the corresponding z value is 1.96. This is determined from the normal distribution table.

We will apply the formula

Confidence interval

= mean ± z ×standard deviation/√n

Since confidence interval = 2.694,

It becomes

2.694 = 1.96 × standard deviation/√8

Dividing both sides of the equation by 1.96, it becomes

1.37 = standard deviation/√8

Standard deviation = 1.37 × √8

Standard deviation = 3.87

3 0
3 years ago
Other questions:
  • Chantelle has signed up for hockey. Her parents set a limit of $400 for costs for the season. It costs $250 to sign up and $5 fo
    9·1 answer
  • From a deck of 52 cards, two cards are radomly drawn without replacement. Which expression represents the probability of drawing
    14·1 answer
  • The sum of two consecutive intergers is -49.
    9·1 answer
  • Please answer ASAP!
    5·2 answers
  • G(x)= 3/4x+6<br> What is the value of g(12)?
    12·1 answer
  • Michelle is making throw pillows to decorate her couch. She is going to make two square pillows that are each 2 feet by 2 feet a
    13·1 answer
  • Solve for x in the diagram.<br><br><br>      <br>   A. 25 <br>   B. 37 <br>   C. 14 <br>   D. 15
    11·1 answer
  • he equation a = a equals StartFraction 180 left-parenthesis n minus 2 right-parenthesis Over n EndFraction. represents the angle
    5·2 answers
  • Help Meeeee you get some brainssssssssssss a lot
    9·1 answer
  • (-5) - (+2) + (+2) - (-5)​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!