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3 years ago

your $440 gets 5.8% interest compounded annually for for 8 years what will your $440 be worth in 8 years l?

Mathematics

1 answer:

Dmitriy789 [7]3 years ago

7 0

Answer:

The answer is $690.78

Step-by-step explanation:

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Solve X/3 + 5/2 = -3/2 pls pls

Tamiku [17]

Answer:

X=-12

Step-by-step explanation:

Subtract -5/2 on both sides:

X/3+5/2-5/2=-3/2-5/2

X/3=-8/2

X/3=-4

Multiply both sides by 3:

X/3*3=-4*3

X=-12

6 0

2 years ago

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What are the roots of the polynomial equation x3 - 6x = 3x2 - 8? Use a graphing calculator and a system of equations.

makkiz [27]

Answer:

d : 4, 1, -2.

Step-by-step explanation:

There's no need for a calculator in my opinion because we can use the rational root theorem which states that the equations of this form:

$\sum_{i=0}^{n} a_{i}x^i = 0 = a_{0} + a_{1}x + a_2x^2 + ... + a_nx^n = 0\\ a_i \in \mathbb{Z}$

Have rational roots, than the roots are of the form: $\frac{k \cdot a_o}{p \cdot a_n}, \ where \ k, p \in \mathbb{Z}.$

Rewriting the equation we have:

$x^3 - 3x^2 -6x + 8 = 0\\By \ our\ previous \ claim \ x \in D_8 \ where \ D_n \ the \ set \ of \ divisors \ of \ n.\\D_8 = \{\pm 1, \pm 2, \pm 4, \pm 8\} \\We \ plug \ in \ some \ number from \ D_8.\\Letting \ x = -2;\\(-2)^3 -3(-2)^2 -6(-2) + 8 = 0 \ \ \ Thus \ x+2 \ is \ a \ factor.\\We \ can \ now \ simplify \ the \ eq. \ using \ Polynomial \ Long \ Division.$

$x^3 -3x^2 -6x + 8 = (x+2)(Q(x))\\To \ find \ Q \ we \ divide \ the \ original \ equation \ by \ x + 2; which \ yields:\\Q(x) = x^2 - 5x + 4.\\So \ we \ can \ use \ the \ quadratic \ formula \ to \ find \ the \ roots:\\x = 4,x = 1. \\Thus \ x \in \{-2, 1, 4\}. \ \ These \ are \ all \ the \ roots.$

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4 years ago

Someone please help me this is the only question stopping me from graduatin class 2020

Sidana [21]

Answer:

EF = 3.43

Step-by-step explanation:

Sin θ = opposite / hypotenuse

Sin 26 = EF / 4.5

0.762 × 4.5 = EF

EF = 3.43

7 0

3 years ago

As x increases, y decreases; r= -0.87<br>which graph best describes this?

insens350 [35]

If y decreases as x increases, we are looking for a negative slope. The r = -0.87 tells us that the data points correlate relatively well. The closer the decimal is to 1 or -1, the better. The answer is A.

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3 years ago

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Write the equation x^2 = 7x in standard form

ZanzabumX [31]

Answer:

x²-7x=0

Step-by-step explanation:

please mark as brainliest

7 0

3 years ago

your $440 gets 5.8% interest compounded annually for for 8 years what will your $440 be worth in 8 years l?​

your $440 gets 5.8% interest compounded annually for for 8 years what will your $440 be worth in 8 years l?