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Lemur [1.5K]
2 years ago
10

Matthew invests $500 into an account with a 2.5% interest that is compounded quarterly. How much money will he have in this acco

unt if he keeps it for 10 years? Round your answer to the nearest cent. D
Mathematics
2 answers:
Levart [38]2 years ago
8 0

Answer:

$642

Step-by-step explanation:

Use the compound interest formula and substitute the correct values: A=500(1+0.025/4)^{4(10)}.

Simplify by using order of operations: A=500(1.00625)^{40}=500(1.283026821) ≈ 642.

Karo-lina-s [1.5K]2 years ago
3 0

Answer:

$641.4

Step-by-step explanation:

500(1 + 0.025/4)⁴⁰

= 641.5134103

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What is the result when the number 10 is decreased by 5.1%?
SashulF [63]

Answer:

(10/100)*94.9 = 9.49

Step-by-step explanation:

Divide by 100 and multiply by 100-5.1 = 9.49

6 0
2 years ago
1. two lines meet at a point. set up and solve an equation to find the value of x
Nikolay [14]

Answer: 1) 57 degrees

2) 50 degrees

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Step-by-step explanation:

78, 52, and the number inbetween = 180

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What are the solutions of x^2+10x+21=0?
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(x+7)(x+3) so therefore you set each equation = 0...
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6 0
2 years ago
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Let L be a tangent line to the hyperbola x y = 2 at x = 9 . Find the area of the triangle bounded by L and the coordinate axes.
mafiozo [28]

Answer:

A = 4

Step-by-step explanation:

The equation of the slope of the tangent line L is obtained by deriving the equation of the hyperbola:

y = \frac{2}{x}

y'=-2\cdot x^{-2}

The numerical value of the slope is:

y' = -2 \cdot (9)^{-2}\\y' = -\frac{2}{81}

The component of the y-axis is:

y = \frac{2}{9}

Now, the tangent line has the following mathematical model:

y = m \cdot x + b

The value of the intercept is found by isolating it within the equation and replacing all known variables:

b = y - m \cdot x

b = \frac{2}{9}-(-\frac{2}{81} )\cdot (9)\\b = \frac{4}{9}

Thus, the tangent line is:

y = -\frac{2}{81}\cdot x + \frac{4}{9}

The vertical distance between a point of the tangent line and the origin is given by the intercept.

d_{y} = \frac{4}{9}

In order to find horizontal distance between a point of the tangent line and the origin, let equalize y to zero and clear x:

-\frac{2}{81}\cdot x + \frac{4}{9}=0

-\frac{2}{9}\cdot x + 4 = 0

x = 18

d_{x} = 18

The area of the triangle is computed by this formula:

A = \frac{1}{2}\cdot d_{x}\cdot d_{y}

A = \frac{1}{2}\cdot (18)\cdot (\frac{4}{9} )

A = 4

4 0
3 years ago
PLEASE ANSWER 100POINTS+BRAINLEST PLEASE HELP NO DUMMY ANSWERS
makkiz [27]
The answer is on google no dumb stuff dummy
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