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2 years ago

Whats the surface area of A cube with the length of 5cm

Mathematics

1 answer:

melamori03 [73]2 years ago

5 0

Answer:

30 cm sq

Step-by-step explanation:

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The lines graphed below show the amounts of water in two tanks as they

maria [59]

Answer:

Tank B

Step-by-step explanation:

Proportional relationships are relationships between two variables with equivalent ratios. For a proportional relationship, one variable is always a constant value times the other. A line is a proportional relationship if it starts from the origin, but if it does not start from the origin, it is not proportional.

From the two tanks, we can see that tank A have a y intercept whereas tank B starts from the origin. Therefore tank B shows a proportional relationship.

6 0

2 years ago

raffle tickets are being sold for a fundraiser. The relationship between n, number of raffle tickets sold, and A, amount of mone

jolli1 [7]

Answer:

D. N(a) = (a + 20)/3

Step-by-step explanation:

A(n) = 3n - 20

A is a function of n. The inverse will be: N is a function of a.

Change A(n) to y and n to x.

y = 3x - 20

Switch x and y.

x = 3y - 20

Solve for y.

x + 20 = 3y

3y = x + 20

y = (x + 20)/3

Now switch y to N(a) and x to a.

Answer: N(a) = (a + 20)/3

8 0

3 years ago

Read 2 more answers

A person deposited Rs. 80,000 in bank 'P' for 2 years at the rate of 10% annual compound interest. But after one year bank has c

stellarik [79]

Answer:

compound interest in year 2 is 12.75% than compound interest in year 1. This is because semi annual compounding yield a higher compound interest

Step-by-step explanation:

compound interest = future value - present value

The formula for calculating future value:

FV = P (1 + r/m)^nm

FV = Future value

P = Present value

R = interest rate

N = number of years

m = number of compounding

compound value in the first year = 80,000(1.1)^1 = 88,000

compound interest = 88,000 - 80,000 = 8,000

compound interest in the second year = 88,000(1 + 0.01/2)^2 = 97,020

compound interest = 97,020 - 88,000 = 9020

Percentage change = (9020 / 8,000) - 1 = 12.75%

4 0

3 years ago

Find the area of a circle with the radius 9m

Anuta_ua [19.1K]

Answer:

254.47

Step-by-step explanation:

A=πr2=π·92≈254.469

6 0

3 years ago

Read 2 more answers

Find the slope of the line that passes through (5, 5) and (1, 0),

Ludmilka [50]

Answer:

Slope is 5/4.

Step-by-step explanation:

The slope of two points can be expressed as $\displaystyle \large{m=\frac{y_2-y_1}{x_2-x_1}$ where m represents the slope,

Let (5,5) be (x1,y1) and (1,0) be (x2,y2). Thus:

$\displaystyle \large{m=\frac{0-5}{1-5}=\frac{-5}{-4}=\frac{5}{4}}$

You can also consider both points other way around. We can let (1,0) be (x1,y1) and (5,5) be (x2,y2) and therefore:

$\displaystyle \large{m=\frac{5-0}{5-1}=\frac{5}{4}}$

Therefore, the slope is 5/4.

3 0

2 years ago