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Nimfa-mama
2 months ago
12

Chris is standing on a cliff that is 3 feet above sea level. He dives into the water and descends to a depth 10 feet below the s

urface of the sea. On a number line, what is the distance between the two elevations?
a:7
b;8
c:13
d:14
Mathematics
1 answer:
AnnZ [12.3K]2 months ago
6 0
Estoy casi seguro de que la respuesta es 7.
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A person flipped a coin 100 times and obtained 73 heads. Can the person conclude that the coin was unbalanced?
lawyer [12517]

It is not possible, as there are just 2 sides, and they likely flipped it in various ways. They experienced some 'luck'.

8 0
2 months ago
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Write the equation of the line that is parallel to the line y=-7/4x-2 through the point (4,2)! Help please
AnnZ [12381]

As you may realize, the equation y=-7/4x-2 is already formatted in slope-intercept form, which means that its slope is represented by the "x" coefficient, that is, -7/4.

Lines that are parallel share identical slopes, therefore a line parallel to this would also maintain a slope of -7/4, which would go through the point (4,2),

\bf (\stackrel{x_1}{4}~,~\stackrel{y_1}{2})\qquad \qquad \qquad slope = m\implies -\cfrac{7}{4} \\\\\\ \stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-2=-\cfrac{7}{4}(x-4) \\\\\\ y-2=-\cfrac{7}{4}x+7\implies y=-\cfrac{7}{4}x+9

6 0
2 months ago
A department store sells logo shirts at an original price of $20. Every month that a shirt doesn’t sell, the store reduces the s
Inessa [12570]

Answer: Macy's pre-tax shirt price is $5.63

Step-by-step explanation:

Details:

Original cost = 20

sale price drops by 25% every month it remains unsold.


First markdown month:

20 * (100%-25%) = 20 * 75% = 15


Second markdown month:

15 * 75% = 11.25


Macy, being an employee, enjoys a 50% discount on the current price.

11.25 * 50% = 5.625

11.25 - 5.625 = 5.625 or rounded to 5.63

Hope this helps!:)

3 0
3 months ago
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