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iren [92.7K]
3 years ago
10

when 1 is added to a number and the answer is trebled , it gives the same result as doubling the number and then adding 4, find

the number.
Mathematics
1 answer:
Phoenix [80]3 years ago
7 0
X - the number
3(x+1)=2x+4
3x+3=2x+4
3x-2x=4-3
x=1
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Which of the following equations could be used to solve the given equation? 9x + 26 + 7x - 17 = 2x + (-3x) + 5x
gavmur [86]

\left(\mathrm{Decimal:\quad }x=-0.75\right)



hope it helps :P


4 0
3 years ago
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Can u show me how to solve this problem 0.11 times 0.91
lisov135 [29]

Answer:

0.1001

Step-by-step explanation: Your answer is 0.1001

 0.91

 <u> 0.11</u>

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0.1001


Hope this helps you!!! :)

3 0
3 years ago
Three functions are given below: f(x), g(x), and h(x). Explain how to find the axis of symmetry for each function, and rank the
LuckyWell [14K]

Answer:

1. x=8 is the line of symmetry for f(x) = -4(x − 8)2 + 3

2. x=-2 is the line of symmetry of g(x) = 3x2 + 12x + 15

3. x=3 is the line of symmetry of h(x), shown in the graph.

Step-by-step explanation:

To find the line of symmetry of a vertical parabola (second degree polynomial), find the value of x that sets the squared term to zero.  This is a vertical line passing through the vertex of the second degree function.

1. f(x) = -4(x − 8)2 + 3

setting x=8 will give f(8) = 3, so x=8 is the line of symmetry

2. g(x) = 3x2 + 12x + 15

here, we need to complete the squares,

g(x) = 3x2 + 12x + 15

g(x) = 3(x^2+4x+5)

g(x) = 3(x^2 + 2(2x) +4 +1)

g(x) = 3((x+2)^2 +1)

So setting x=-2 will anihilate or cancel the squared term, therefore

x= -2 is the line of symmetry.

3. the curven shown in graph,

we see that the vertex is at x=3, so x=3 is the line of symmetry.

5 0
3 years ago
And also this question as well
gtnhenbr [62]

Answer:

It's the second one I believe, because it's not a straight line, and nearly all functions have curved lines

Step-by-step explanation:

4 0
3 years ago
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Natali5045456 [20]

Answer:

My net wroth would have changed by $800

Step-by-step explanation:

Because $3,100 - $2,300 = $800

4 0
3 years ago
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