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3 years ago

Express the ratio 16:9 as a ratio to 1

Mathematics

1 answer:

Bumek [7]3 years ago

8 0

I think it's 1.77777777778(7 is repeating) to1.
16/9=1.77..............8

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Find the geometric mean between each pair of numbers..<br> 25 and 16

Diano4ka-milaya [45]

Answer:

Step-by-step explanation

√(25)(16)

4 0

2 years ago

Sam invests $800 at 6%/a compounded annually for 5 years. What is the total interest<br> earned?

s2008m [1.1K]

<h3>Answer: 270.58 dollars</h3>

======================================================

Work Shown:

A = account value after t years
P = principal or amount deposited = 800
r = interest rate in decimal form = 0.06
n = number of times we compound per year = 1
t = number of years = 5

So,

A = P*(1+r/n)^(n*t)

A = 800*(1+0.06/1)^(1*5)

A = 1070.58046208

A = 1070.58

After five years, the account will have $1,070.58 in it.

The amount of interest earned is A-P = 1070.58 - 800 = 270.58 dollars.

4 0

2 years ago

Am I right?

MariettaO [177]

Yes, your answer is right.

5 0

3 years ago

For the function P(x) = x3 − 9x, at the point (2, −10), find the following. (a) the slope of the tangent to the curve (b) the in

Shalnov [3]

Answer:

3, in both a), b)

Step-by-step explanation:

a) The slope of the line tangent to the curve that passes through the point (2,-10) is equal to the derivative of p at x=2.

Using differentiation rules (power rule and sum rule), the derivative of p(x) for any x is $p'(x)=3x^2-9$ . In particular, the value we are looking for is $p'(2)=3(2^2)-9=12-9=3$ .

If you would like to compute the equation of the tangent line, we can use the point-slope equation to get $y=3(x-2)-10=3x-16$

b) The instantaneus rate of change is also equal to the derivative of P at the point x=2, that is, P'(2). This is equal to $p'(2)=3$ .

4 0

3 years ago

Please help on this

lapo4ka [179]

Answer:

no the equation is not proportional and

x y

1 4

2 6

3 8

4 10

Step-by-step explanation:

5 0

2 years ago