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GaryK [48]
3 years ago
7

8.5% tax on $90 purchase

Mathematics
2 answers:
Vladimir [108]3 years ago
5 0

Answer:

$97.65

Step-by-step explanation:

jolli1 [7]3 years ago
3 0

Answer:

7.65$ or 97.65$

Step-by-step explanation:

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How do you subtract 4 - 3 over 7.
Sauron [17]
You put 4-3 over 7

4-3/7 = 1/7

So the answer would be 1/7
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2 years ago
Jim spent an hour doing homework. He spent a third of this time on math and a half on an essay. A few breaks took the rest of hi
Citrus2011 [14]

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If he spent 20 min. on math and on breaks then he'd spend 20 min. on the essay

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marishachu [46]

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6 0
2 years ago
Write an equation of the circle with center , −45 and radius 6 .
IceJOKER [234]
The general equation for a circle, x^2+y^2=1, falls out of the Pythagorean Theorem, which states that the square of the hypotenuse of a right triangle is always equal to the sum of the squares of its legs (you might have seen this fact written like a^2+b^2=c^2, where <em>a </em>and <em>b</em> are the legs of a right triangle and <em>c </em>is its hypotenuse. When we fix <em /><em>c</em> in place and let <em>a </em>and <em>b </em>vary (in a sense, at least; their values are still dependent on <em>c</em>), the shape swept out by all of those possible triangles is a circle - a shape defined by having all of its points equidistant from some center.

How do we modify this equation to shift the circle and change its radius, then? Well, if we want to change the radius, we simply have to change the hypotenuse of the triangle that's sweeping out the circle in the first place. The default for a circle is 1, but we're looking for a radius of 6, so our equation, in line with Pythagorus's, would look like x^2+y^2=6^2, or x^{2} +y^2=36.

Shifting the center of the circle is a bit of a longer story, but - at first counterintuitively - you can move a circle's center to the point (a,b) by altering the x and y portions of the equation to read:

(x-a)^2+(y-b)^2
7 0
2 years ago
A single card is drawn from a deck. Find the probability of selecting a heart or a 9
Gekata [30.6K]
Probability of heart = 13/52
probability of nine = 4/52

you add the probability because of the word "or" but must subtract the probability of drawing the 9 hearts because it's counted twice. counted once in heart probability and once again in nine probability.

probability of 9 <3 = 1/52

probability of heart or nine:
13/52 + 4/52 - 1/52 = 16/52
simplified;
= 4/13
6 0
2 years ago
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