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Vladimir79 [104]
3 years ago
6

What is the total cost of $ 2.95 notebook plus 5 %

Mathematics
1 answer:
nordsb [41]3 years ago
5 0
First, you convert 5% to decimal. For your info, percents are always equal to 100. So, you divide 5 by a 100, which gives you 0.05. Then, you multiply 2.95 by 0.05. 2.95 x 0.05 is 0.1475 which is about 0.15. Then, you add 0.15 to 2.95. The total cost of a $2.95 notebook plus 5% is about $3.10.

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Suppose Q and R are independent events. Find P(Q and R) if P(Q) =4/5 and P(R) =4/11
9966 [12]
Since Q and R are independent, this means P(Q and R) = P(Q)*P(R)

<span>P(Q and R) = P(Q)*P(R)
</span><span>P(Q and R) = (4/5)*(4/11)
</span><span>P(Q and R) = (4*4)/(5*11)
</span>P(Q and R) = 16/55
6 0
3 years ago
What is the slope perpendicular to y=-3
liraira [26]

check the picture below.


so, y = -3 is simply a horizontal line, as you see there, and any perpendicular line to that will be a vertical one, whose slope is undefined.

we can check by simply picking two points off the red line hmmm say (-2,2) and (-2, -2)


\bf (\stackrel{x_1}{-2}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{-2}~,~\stackrel{y_2}{-2}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-2-2}{-2-(-2)}\implies \cfrac{-2-2}{-2+2}\implies \stackrel{und efined}{\cfrac{-4}{0}}

4 0
3 years ago
X^2+y^2-10x-16y+53=0<br> What is the center of the circle?<br> What is the radius of the circle?
Anon25 [30]

Answer:

Step-by-step explanation:

hello :    Completing The Square

X²+y²-10x-16y+53=0 means : (x²-10x+25-25)+(y²-16y+16-16)+53 =0

(x²-10x+25)-25)+(y²-16y+64)-64+53 =0

(x+5)²+(y-8)² -25-64+53=0

(x+5)²+(y-4)² = 6²  standard form

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7 0
3 years ago
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Zigmanuir [339]

Twenty-seven minus 3/2of a number (x) is not more than 36.

27 - (3/2)X = 36

What is the number?

(3/2)X = 27 - 36 = - 9

X = (- 9x2)/3 = -18/3 = -6

Check

36 = 27 - (3/2)X =  27 - (3/2)x(-6) = 27 - (-18/2) = 27 - (-9) = 36

5 0
3 years ago
1-z/z-7 - 8z-3/7-z subtract
maxonik [38]
The answer to your question above would be: 7z-2/z-7

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3 years ago
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