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3 years ago

10

Norma deposited $50 in a savings account earning 10% interest, compounded annually. To the nearest cent, how much will she have

in 3 years

1 answer:

timofeeve [1]3 years ago

8 0

Answer:

$66.55

or $66.60

Step-by-step explanation:

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If you are given the functions f(x) = 3x + 1... Can you find the input value if f(x) = 10

VARVARA [1.3K]

Answer:

Input value: 3

Step-by-step explanation:

If I'm understanding the question correctly it would look like this.

$10 = 3x + 1$

Next: Subtract one

$9 = 3x$

Divide by three to get x.

$x = 3$

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3 years ago

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"Find the sum of the first 50 term in this sequence 4, 7, 10, 13, ...". How do i do this without writing them all out, and how d

melisa1 [442]

First term ,a=4 , common difference =4-7=-3, n =50
sum of first 50terms= (50/2)[2×4+(50-1)(-3)]
=25×[8+49]×-3
=25×57×-3
=25× -171
= -42925
derivation of the formula for the sum of n terms
Progression, S
S=a1+a2+a3+a4+...+an

S=a1+(a1+d)+(a1+2d)+(a1+3d)+...+[a1+(n−1)d] → Equation (1)

S=an+an−1+an−2+an−3+...+a1

S=an+(an−d)+(an−2d)+(an−3d)+...+[an−(n−1)d] → Equation (2)

Add Equations (1) and (2)
2S=(a1+an)+(a1+an)+(a1+an)+(a1+an)+...+(a1+an)

2S=n(a1+an)
S=n/2(a1+an)

Substitute an = a1 + (n - 1)d to the above equation, we have
S=n/2{a1+[a1+(n−1)d]}
S=n/2[2a1+(n−1)d]

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3 years ago

The velocity of an object in meters per second varies directly with time in seconds since the object was dropped, as represented

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What are you asking?

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3 years ago

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Can I get some help on this math problem

pogonyaev

Answer:

$x=3\sqrt{5}$

Step-by-step explanation:

<u>Right Triangles</u>

Right triangles have one of its interior angles with a measure of 90°.

In right triangles the Pythagora's Theorem is satisfied.

Being c the longest side (hypotenuse), a and b the shorter sides (the legs), then:

$c^2=a^2+b^2$

We have modified the image to include some known data. Both triangles are congruent since they share one side, have a right angle, and have the same base length.

This means the value of x can be calculated as the hypotenuse of the triangle 3-6-x:

$x^2=3^2+6^2=9+36=45$

$x=\sqrt{45}=\sqrt{9*5}$

$\boxed{x=3\sqrt{5}}$

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3 years ago

How are the following three expressions different from each other, if indeed they are? do not just state the value of each but e

Lisa [10]

Answer:

Below.

Step-by-step explanation:

Number is different to the other 2. Its value is +4 because negative 2 squared = + 4.

The other 2 have negative values and -2 = -(2) so they have the same value, -4.

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3 years ago