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Setler [38]
3 years ago
13

Cathy deposited $100 in an account that has a simple interest rate of 3.4%. How much interest will she earn after 2 years?

Mathematics
1 answer:
VashaNatasha [74]3 years ago
8 0

Answer:

6.8% Intrest for 2 years.

Step-by-step explanation:

3.4% x2 is 6.8

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An angle measures 112° more than the measure of its supplementary angle. What is the measure of each angle?
Kruka [31]

Answer:

146°; 34°

Step-by-step explanation:

Supplementary angles are two angles whose measures sum up to equal 180°. The supplement of one angle = 180° - its measure.

Given that an angle measures 112° more than its supplementary angle,

let x = the angle (larger angle)

Supplement of x = (180 - x) (smaller angle)

x = (180 - x) + 112

Solve for x

x = 180 - x + 112

x + x = 180 - x + 112 + x

2x = 180 + 112

2x = 292

2x/2 = 292/2

x = 146

The angle is 146°

Its supplement is 180 - 146 = 34°

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3 years ago
I need help please give explanation as well thank you
Mariana [72]
I hope I can help you

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2 years ago
Kelly drew a triangle with exactly two congruent sides and 3 acute angles. Which of the following accurately best describe the t
kirill115 [55]
The answer is A 
It is A because in an isosceles triangle, only 2 sides are congruent and it is possible to have all acute angles eg. 55, 55 and 70
8 0
3 years ago
Help me out please <3
Kaylis [27]
In 3 months it will both will be 120
5 0
3 years ago
A model jet is fired up in the air from a 18-foot platform with an initial upward velocity of 56 feet per second. The height of
marshall27 [118]
The way you find the max height of this journey is by completing the square.  When you complete the square, you find the vertex of the parabola.  The vertex will give the max height (k), and the time at which it reached its max height (h).  The coordinates for the vertex are (h, k).  Completing the square requires that we set the function equal to zero and then move the constant over to the other side of the equals sign.  That will give us this: -16 t^{2} +56t=-18.  Now we can complete the square on the x terms.  The first rule is that the leading coefficient be a positive 1.  Ours is a -16, so we have to factor it out. -16( t^{2} - \frac{7}{2} t)=-18.  Now we will take half the linear term, square it, and add it to both sides.  Our linear term is 7/2.  Half of that is 7/4, and squaring 7/4 gives us 49/16.  We will add that in to the parenthesis on the left side just fine, but don't forget about the -16 hanging around out front.  What we have actually "added" in is -16*49/16, which gives us -49.  This is what we have now: -16( t^{2} - \frac{7}{2}t+ \frac{49}{16})=-18-49.  In that process, we have created a perfect square binomial.  That, along with doing the math on the right gives us -16(t- \frac{7}{4}) ^{2}=-67.  We will now move that -67 over by addition, and then we will have the vertex.  -16(t- \frac{7}{4})  ^{2} +67=y  The vertex of this parabola is (7/4, 67).  This means that at 11 3/4 seconds, the object reached its max height of 67 feet.  Choice B from above.
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3 years ago
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