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2 years ago

Jennifer invests $10,000 at 7% simple interest. How much is in her account after 2years ?

Mathematics

1 answer:

kakasveta [241]2 years ago

8 0

Answer:

70,000 i think

Step-by-step explanation:

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Find the exact solutions of x2 − 3x − 5 = 0 using the quadratic formula. Show all work! 75 points please help!!!!!

noname [10]

Answer:

$x=\dfrac{3+ \sqrt{29}}{2}, \quad \dfrac{3- \sqrt{29}}{2}$

Step-by-step explanation:

Quadratic Formula

$x=\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}\quad\textsf{when }\:ax^2+bx+c=0$

Given quadratic equation:

$x^2-3x-5=0$

Define the variables:

$\implies a=1, \quad b=-3, \quad c=-5$

Substitute the defined variables into the quadratic formula and solve for x:

$\implies x=\dfrac{-(-3) \pm \sqrt{(-3)^2-4(1)(-5)}}{2(1)}$

$\implies x=\dfrac{3 \pm \sqrt{9+20}}{2}$

$\implies x=\dfrac{3 \pm \sqrt{29}}{2}$

Therefore, the exact solutions to the given quadratic equation are:

$x=\dfrac{3+ \sqrt{29}}{2}, \quad \dfrac{3- \sqrt{29}}{2}$

Learn more about the quadratic formula here:

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8 0

1 year ago

Read 2 more answers

Voting age

Levart [38]

Answer:

$\frac{17}{64}\approx 0.27$

Step-by-step explanation:

We have been given a table to voters and their ages. We are asked to find the probability that a voter is younger than 45.

Voting age Voters

17-29 9

30-44 8

45-64 32

65+ 15

We can see from our given table that age of 17 (9+8) voters is between 17 to 44 years.

To find the probability that a voter is younger than 45, we will divide 17 by total number of voters.

$\text{Total voters}=9+8+32+15=64$

$\text{Probability that a voter is younger than 45}=\frac{17}{64}$

$\text{Probability that a voter is younger than 45}=0.265625$

$\text{Probability that a voter is younger than 45}\approx 0.27$

Therefore, the probability that a voter is younger than 45 is 0.27.

4 0

2 years ago

Remi invests £600 for 5 years in a savings account.

Daniel [21]

Answer:

225600

Step-by-step explanation:

Simple interest formula:

A = P(1 + rt)

A = final amount

P = initial principal balance

r = annual interest rate

t = time (in years)

So...

A = 600(1 +(75 x 5) )

75 x 5 = 375

1 + 375 = 376

600 x 376 = 225600

A = 225600

6 0

2 years ago

To the nearest hundredth, what is the surface area that will be painted?

Aleksandr-060686 [28]

Answer:

6.5in

Step-by-step explanation:

find the area of the shaded regions

fine the surface area of the square

A = 2×2

A = 4

find the area of the triangle

A = 1/2bh

A = 1/2×2×2.5

A = 2.5

add the areas

2.5+4 = 6.5

3 0

2 years ago

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Helppppppppppp!!!!!!!!!!!

Fed [463]

A parallel line must have the same slope. The only one it can be is A

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1 year ago