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Liula [17]
3 years ago
11

If the sum of a number and seven is doubled, the result is one less than the number. find the number

Mathematics
1 answer:
lawyer [7]3 years ago
7 0
(n + 7)2 = n - 1
2n +14 = n - 1
2n - n +14 = n - n - 1
n + 14 -14 = -1 - 14
n = -15
(-15 + 7)2 = -15 - 1
(-8)2 = -16
-16 = -16
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Please please help me out!!!!!
Sliva [168]

Answer:

The answer to your question is: g(3) = 34

Step-by-step explanation:

Function                   g(x) = 4(x)² - 3(x) + 7

                                 g(3) = 4(3)² - 3(3) + 7               substitution

                                 g(3) = 4(9) - 3(3) + 7                 simplify

                                 g(3) = 36 - 9 + 7

                                 g(3) = 36 - 2

                                  g(3) = 34

                               

7 0
3 years ago
One of the x-intercepts of the parabola represented by the equation y = 3x^2 + 6x − 10 is approximately (1.08, 0).
Igoryamba
3x^2 + 6x - 10 = 0

x  = [-6 +/- sqrt(^2 - 3*3*-10)] / 2*3

=  1.08 and -3.08

Other x -intercept is (-3.08,0)
4 0
3 years ago
Read 2 more answers
This month Salesperson A made 11% of $67,530. Salesperson B made 8% of $85,740. Who made more commission this month? How much di
laiz [17]

Answer:

Salesman A made $569.1 more commission than salesman B

Step-by-step explanation:

(11/100)*67530= (amount made by salesperson A)

=7428.3

(8/100)*85740= (amount made by salesperson B)

=6859.2

A-B= 569.1

Hope this helps :D

6 0
3 years ago
What is the value of in e^4?
True [87]
54.5981500331 is the answer
7 0
3 years ago
Read 2 more answers
20 points pls help imp
Gnom [1K]
180 - 79
101 degrees is the answer
6 0
3 years ago
Read 2 more answers
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