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Arada [10]
2 years ago
14

If "x" is equal to 6, what is the value of the following expression? y = 2x + 9x + 3

Mathematics
1 answer:
ser-zykov [4K]2 years ago
3 0

Answer:

y = 69

Step-by-step explanation:

Given the following question:

y=2x+9x+3
x=6

Substitute and solve using PEMDAS:

y=2x+9x+3
y=2(6)+9(6)+3
2\times6=12
y=12+9(6)+3
9\times6=54
y=12+54+3
12+54=66
66+3=69
y=69

Your answer is "y = 69."

Hope this

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Mamont248 [21]

Answer:

11) Here given Function,

f(x) = \sqrt{2x-11}

And, g(x) = -|0.1|x+5

For f(x) = g(x)

\sqrt{2x-11}=-|0.1|x+5

2x-11=(-|0.1|x+5)^2

2x-11=0.01x^2 - 10|0.1|x+25

2x=0.01x^2 - 10|0.1|x+25+11

2x=0.01x^2 - 10|0.1|x+36

0.01x^2 - 10|0.1|x - 2x+36=0

When we solve this equation,

We found,

 x = 12.5227 ≈ 12.53

Thus, the required solution is, x = 12.53

12) Here the height of rocket A in x second,

f(x) = -16x^2+74x+9

And, The height gain by the rocket B in x seconds,

g(x) = -16x^2+82x

If at x seconds both A and B gain the same height,

That is, f(x) = g(x)

⇒ -16x^2+74x+9= -16x^2+82x

⇒74x + 9 = 82x

⇒ 82x - 74x = 9

⇒ 8x = 9

⇒ x = 1.125 ≈ 1.13

Thus, the required solution is x = 1.13 seconds (approx)


4 0
3 years ago
What is the length of side PQ?<br> A. 48<br> B. 24<br> C. 40<br> D. 18
kicyunya [14]
6 × 2 = 12 so 6 is the dilation factor

thus 4 × 6 is PQ which is 24
4 0
3 years ago
Read 2 more answers
Identify the solution set of the given inequality using the given replacement set.
scoundrel [369]
Another user previously answered this same question and had a good rating, his answer was as follows:

"{-9; -6.5; -5.2}" 

Which I suppose would be answer D.
- Hope it helps.

3 0
3 years ago
PLEASE HELP ASAP WILL GIVE BRAINLEIST !!
Nikitich [7]

Answer:

Step-by-step explanation:

Lenny had a rectangular deck that was 12 feet by 14 feet he wants to increase the length and width by the same amount and at 120 square feet to the total area what's the answer

5 0
3 years ago
Which polygon has interior angles whose measures sum to 720°?
4vir4ik [10]

Answer:

Hexagon

Step-by-step explanation:

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7 0
2 years ago
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