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
Alenkinab [10]
3 years ago
11

Multiplies to -2 adds to 6

Mathematics
1 answer:
ikadub [295]3 years ago
6 0
Xy=-2
x+y=6

minnus x from second equation
y=6-x
sub for y
x(6-x)=-2
6x-x^2=-2
add x^2 both sides and minus 6x both sides
0=x^2-6x-2
use quadatic formula

if you have
ax^2+bx+c=0
x=\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}


x^2-6x-2=0
a=1
b=-6
c=-2
x=\frac{-(-6)+/- \sqrt{(-6)^{2}-4(1)(-2)} }{2(1)}
x=\frac{6+/- \sqrt{36+8} }{2}
x=\frac{6+/- \sqrt{44} }{2}
x=\frac{6+/- 2\sqrt{11} }{2}
x=3+/- \sqrt{11}

x=3+ \sqrt{11} or x=3- \sqrt{11}
aprox
x=6.31662 or -0.316625

those are the numbers

6.31662 and -0.316625


You might be interested in
If it take Tracy 1/4 of an hour to do her homework,and it takes Trent 3/4 of an hour to do his homework,how much total time does
NeX [460]
It takes them 45 minutes if they start at the same time, but adding them together it would be an hour.
7 0
3 years ago
Read 2 more answers
Peter works at Silly's and makes $33.19 an hour. He also collects a 5.3% commission on final weekly sales. Last month, he worked
Romashka-Z-Leto [24]

Answer:

$10,318.62

Step-by-step explanation:

We have been given that works at Silly's and makes $33.19 an hour. He also collects a 5.3% commission on final weekly sales. If he works over 40 hours during any week, he earns double his hourly wage.

Peter's hourly charges during 1st and 2nd week would be $33.19 and hourly charges during 3rd and 4th week would be 2 times $33.19.

First of all, we will find total hourly income as:

\text{Total hourly income}=\$33.19(30+40)+2\times \$33.19(49+55)

\text{Total hourly income}=\$33.19(70)+\$66.38(104)

\text{Total hourly income}=\$2323.3+\$6903.52

\text{Total hourly income}=\$9226.82

Now, we will find income from commission on sales as:

\text{Income from commission on sales}=\frac{5.3}{100}(4500+5500+3800+6800)

\text{Income from commission on sales}=0.053(20600)

\text{Income from commission on sales}=1091.8

Peter's total earnings is the last month: \$9226.82+\$1091.8=\$10,318.62

Therefore, Peter's total earnings in last month was $10,318.62.

5 0
3 years ago
Select the correct answer.
sergejj [24]
G(x)/f(x) will be simplified to (x+3)(x-3)/2-x^1/2,
which will give you [0,4) ∪(4, ∞).
Choice B
5 0
3 years ago
1. Multiply. 8 •(-6)Show all work.
FrozenT [24]
A positive number times a negative number would always equal a negative number, so 8x-6 would be -48. lll
3 0
3 years ago
In the manufacturing of a chemical adhesive, 9% of all batches have raw materials from two different lots. This occurs when hold
DochEvi [55]

Answer:

a) P(A) = 0.09

b) P(A') = 0.91

c) P(B|A) = 0.4

d) P(B/A') = 0.05

e) P(A ∩ B) = 0.036

f) P(A ∩ B') = 0.054

g) P(B) = 0.0815

Step-by-step explanation:

Let A mean batch is made from two different lots and B mean batch requires additional processing

It is given in the question that

P(A) = 0.09

P(B|A) = 0.4

P(B|A') = 0.05

a) P(A) = 0.09 (given)

b) P(A') = 1-0.09 = 0.91

c) P(B|A) = 0.4 (given)

d) P(B|A') = 0.05 (given)

e) P(A ∩ B) = P(B|A) × P(A) = 0.4 × 0.09 = 0.036

f) P(A ∩ B') = P(A) - P(A ∩ B) = 0.09 - 0.036 = 0.054

g) P(B) = P(A ∩ B) + P(A' ∩ B)

P(B) = P(B|A) P(A) + P(B|A') P(A') = 0.4 × 0.09 + 0.05 × 0.91 = 0.0815

QED!

5 0
3 years ago
Other questions:
  • J IS 14 LESS THAN 22 <br> WRITE AN EQUATION TO REPRESENT THIS PROBLEM<br> SOLVE FOR j
    6·1 answer
  • The graph shows the number of hours that Tammy spends typing for work, x, and the amount of pay that she earns, y.
    15·2 answers
  • Solve the equation. -45 = x +(-3) + 50<br><br><br> a2<br><br> b-92<br><br> c-98<br><br> d8
    6·2 answers
  • What is the answer to the problem (74x-47y)-(68x+21y)
    13·1 answer
  • 6700 dollars is placed in an account with an annual interest rate of 8%. How much will be in the account after 24 years, to the
    10·2 answers
  • 5)
    14·1 answer
  • Which graph shows the solution to the following system of inequalities x+y&gt;4 x+y &lt;3
    8·2 answers
  • A smog alert has been called in a certain area of Los Angeles County in which there are 50 industrial rms. An inspector will vis
    9·1 answer
  • Am i gay tell me to me stragiot my phone number is 208 431 7721 A restaurant bill is $25, and a 20 percent tip should be given t
    14·1 answer
  • Find the magnitude of the vector from the origin to (-7, -5) and write the vector as the sum of unit vectors.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!