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3 years ago

100° (x - 10 (2y + 24)

Mathematics

1 answer:

kicyunya [14]3 years ago

6 0

Answer: •2y

Step-by-step explanation:

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Work out the balance for 1500 invested for 2 years at 3.7% per annum.

Andru [333]

1500 x 1.037 = 1555.50
1555.50 x 1.037 = 1613.05

8 0

3 years ago

4400 dollars is placed in an account with an annual interest rate of 7.5%. To the nearest tenth of a year, how long will it take

Katarina [22]

Answer:

Step-by-step explanation:

The equation for the amount of money in an account after a certain amount is deposited and compounded after t years once per year is

$A(t)=P(1+r)^t$

Our A(t) = 33800, P = 4400, r = .075 and we are looking for t. Filling in:

$33800=4400(1+.075)^t$ and

$33800=4400(1.075)^t$

Begin by dividing both sides by 4400 to get

$7.681818182=1.075^t$

The only way to move that t our from its current position as an exponent is to take the natural log of both sides and follow the rules for natural logs:

$ln(7.6181818182=ln(1.075)^t$

The power rule of natural logs says we can move that exponent down in front, giving us:

$ln(7.681818182)=t*ln(1.075)$

Divide both sides by ln(1.075) to get

$\frac{ln(7.61818182)}{ln(1.075)} =t$

Do this division on your calculator to get

t = 28.2 years

6 0

3 years ago

Read 2 more answers

How to find the perimeter of a square one side is 10x other side is 6x+8?

Yanka [14]

To find the perimeter of the square, you add all four sides together:
10x + 10x + (6x + 8) + (6x + 8)
20x + 12x + 16 = P
32x + 16 = P

you have to find x to get the actual perimeter. Since the shape is a square, all 4 sides are equal, so you can set 10x and (6x + 8) as equal to each other.
10x = 6x + 8
4x = 8
x = 2

Now you just plug in x and finish the rest of the problem, and you have the answer:
32(2) + 16 = P
64 + 16 = P
P = 80

(if you find this helpful, marking this as the brainliest answer would make my day :)

4 0

3 years ago

What is the domain and range of f(x) = |x+6|?

Ronch [10]

Here is the answer

Domain: (- infinity, infinity)
Range: [0, infinity)

3 0

3 years ago

Pls help it due ASAP.<br> Please show workings <br> It due in a hour....

castortr0y [4]

Answer:

C. $\frac{4}{5}$

Step-by-step explanation:

In order to find the slope knowing two points, use the slope formula $\frac{y_2 - y_1}{x_2-x_1}$ . $x_1$ and $y_1$ represent the x and y values of one point the line intersects, and $x_2$ and $y_2$ represent the x and y values of another point the line intersects.

Knowing this, use the points (-4, -4) and (6, 4) for the formula. Substitute -4 for $x_1$ , -4 for $y_1$ , 6 for $x_2$ , and 4 for $y_2$ . Then, simplify:

$\frac{(4) - (-4)}{(6) - (-4)} \\= \frac{4+4}{6+4} \\= \frac{8}{10} \\= \frac{4}{5}$

Thus, $\frac{4}{5}$ is the slope of the line.

5 0

4 years ago