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strojnjashka [21]
3 years ago
11

"Find A and B so that the system below has the solution (1, -1)."

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
3 0
To do this you must plug in 1 and negative one for each x variable and each y. that solution is a point so the 1 must be tested for x and the -1 for y. do this and solve to find a and b so that it works in both equations!
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Solve the equation by completing the square. Round to the nearest hundredth if necessary.
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61 divided by 3427?
katrin2010 [14]
61 / 3427= 0.01779982. (rounds up to 0.02 if rounded by hundredths)
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When you are 14 and you save 25 cents everyday how much would you when you are 60v years old?
Minchanka [31]
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4 0
3 years ago
(7a^3 -2a-2)+(-5a+3)
atroni [7]

Answer:

7a  3  −7a+1

Step-by-step explanation: I hope this help.

STEP

1

:

Equation at the end of step 1

 ((7a3 -  2a) -  2) +  (3 - 5a)

STEP

2

:

Polynomial Roots Calculator :

2.1    Find roots (zeroes) of :       F(a) = 7a3-7a+1

Polynomial Roots Calculator is a set of methods aimed at finding values of  a  for which   F(a)=0  

Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers  a  which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number  P/Q   then  P  is a factor of the Trailing Constant and  Q  is a factor of the Leading Coefficient

In this case, the Leading Coefficient is  7  and the Trailing Constant is  1.

The factor(s) are:

of the Leading Coefficient :  1,7

of the Trailing Constant :  1

Let us test ....

  P    Q    P/Q    F(P/Q)     Divisor

     -1       1        -1.00        1.00      

     -1       7        -0.14        1.98      

     1       1        1.00        1.00      

     1       7        0.14        0.02      

Polynomial Roots Calculator found no rational roots

Final result :

 7a3 - 7a + 1

6 0
3 years ago
Read 2 more answers
Simplify: 7^6 ÷ 7^2<br><br> A.) 7^3<br> B.) 7^4<br> C.) 7^8<br> D.) 7^12
juin [17]
7^6/7^2
(7*7*7*7*7*7)/(7*7)
the answer is b. 7^4
6 0
3 years ago
Read 2 more answers
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