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mars1129 [50]
2 years ago
10

Solve: -25 < x + 20 < 25

Mathematics
1 answer:
denis23 [38]2 years ago
8 0

Answer:

-45 < x < 5 (see graph below)

Step-by-step explanation:

to isolate x by itself, subtract 20 from all three terms of the equation:

(-25-20)

once you finish subtracting 20, x should be by itself, making the equation graphable:

-45 < x < 5

since x is not equal to -45 or 25, the graph line endings have open circles.

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What value of A in this equation y=(9A-7)x would give a line with the slope -5?
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0, I put y=(0-7)x into a graphing calculator

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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

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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
Help Meeeeeeee!!!!!!!!
vesna_86 [32]

Answer: 1st one

Step-by-step explanation:

8 0
3 years ago
Fill in the blanks
olga nikolaevna [1]
The answer is 
5mn(KUASA DUA) -6gh(KUASA DUA) +2
4 0
3 years ago
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