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polet [3.4K]
3 years ago
8

What should the following equation be multiplied by to eliminate the decimals? 9.437x – 6.489 = 0.52 use photo for details ​

Mathematics
1 answer:
hodyreva [135]3 years ago
4 0

Answer:

10        but im not sure.

Step-by-step explanation:

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Solve the Equation for y . 9x +5y = -2 ​
ASHA 777 [7]

Answer:

\large\boxed{y=\dfrac{-9x-2}{5}}

Step-by-step explanation:

9x+5y=-2\qquad\text{subtract}\ 9x\ \text{from both sides}\\\\5y=-9x-2\qquad\text{divide both sides by 5}\\\\y=\dfrac{-9x-2}{5}

3 0
3 years ago
The graph of g(x) is obtained by reflecting the graph of f(x)=2|x| over the x-axis.
Lera25 [3.4K]
Answer: Choice C) 
g(x) = -|2x|

You get this answer by simply sticking a negative out front of the original function. In other words, g(x) = -f(x) or more technically, g(x) = -1*f(x).

The negative will flip every y coordinate from positive to negative (or vice versa)

You'll also use the idea that |2x| = 2|x|. The two can be pulled out since we can say |x*y| = |x|*|y|
So |2*x| = |2|*|x| = 2|x|

4 0
3 years ago
. A study of one thousand teens found that the number of hours they spend on social networking sites each week is normally distr
Gnesinka [82]

We are given the following data:

Sample Size = n = 1000

Sample Mean = u = 15 hours

Population Standard Deviation = s = 2 hours

Since we know the population standard deviation, we can use z distribution to find the confidence interval about the mean. z value for 95% confidence interval is 1.96.

Formula for the confidence interval is:

(u-z\frac{s}{\sqrt{n}} ,  u+z\frac{s}{\sqrt{n}})

Using the values in the formula, we get:

(15-1.96\cdot\frac{2}{\sqrt{1000}},  15+1.96\cdot\frac{2}{\sqrt{1000}})\\ \\  (14.88,15.12)

Therefore, the 95% confidence interval about the population mean is 14.88 hours to 15.12 hours. So B option is the correct answer.

4 0
3 years ago
Read 2 more answers
What uses numbers, variables and operations symbol?
Nutka1998 [239]
Sounds like "formulas"!  y = ax^2 + bx + c   involves the variable x and the constants {a, b, c}.  The "2" indicates "squaring function."
6 0
3 years ago
I need help with this asap!
scoundrel [369]
The answer is in the picture! I hope this helps!

4 0
1 year ago
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