2 years ago

If 15% of an amount is 75kg, show how I could get to 30%

Mathematics

1 answer:

den301095 [7]2 years ago

3 0

Answer:

double 75 to get 30%..........

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A man took out a $44,000 construction loan to remodel a house. The loan rate is 8.5% simple interest per year to be repaid in th

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Answer:

$44,935

Step-by-step explanation:

The amount due will be ...

A = P(1 +rt) . . . . principal P at annual rate r for t years

3 months is 3/12 = 1/4 years, so the amount is ...

A = $44,000(1 +0.085×1/4) = $44,935 . . . amount paid back

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Step-by-step explanation:

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2 years ago

What is the equation, in point-slope form, of the line that

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Step-by-step explanation:

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Jacob buys a wool scarf for 30 dollars. Sales tax is 9%. How much does Jacob actually have to pay?

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$32.70

Step-by-step explanation:

9% of 30 is 2.70 so you add it together and get the answer

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Simplify the trigonomic expression 1/1+ sin

Softa [21]

Answer:

$\sec^2\theta-\tan\theta\sec\theta$

Step-by-step explanation:

We have to simplify the trigonometric expression $\frac{1}{1+\sin\theta}$

Let us multiply the numerator and denominator by $1-\sin\theta$

$\frac{1}{1+\sin\theta}\times\frac{1-\sin\theta}{1-\sin\theta}$

In the denominator apply the formula for difference of squares

$a^2-b^2=(a+b)(a-b)$

Thus, the denominator will become

$(1+\sin\theta)(1-\sin\theta)=1-\sin^2\theta$

Thus, the expression is

$\frac{1-\sin\theta}{1-\sin^2\theta}$

Using the relation $1-\sin^2\theta=\cos^2\theta$

$\frac{1-\sin\theta}{\cos^2\theta}$

We can rewrite this expression as

$\frac{1}{\cos^2\theta}-\frac{\sin\theta}{\cos^2\theta}$

Finally, the simplified expression is

$\sec^2\theta-\tan\theta\sec\theta$

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