3 years ago

PLEASE HELP WITH THIS QUESTION

Mathematics

1 answer:

Lilit [14]3 years ago

6 0

The answer is C. 16.5 m^2.

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Solve the following problem. Round the one decimal place if necssary.

dmitriy555 [2]

Cosθ = adjacent / hypotenuse

$\cos(47) = \frac{28}{x} \\ 0.68 = \frac{28}{x} \\ x = \frac{28}{0.68} \\ x = 41.1 \\ x = 41$

I hope I helped you^_^

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2 years ago

Through (-5, -4), slope = 7/5

Alexandra [31]

Answer:

$y = \frac{7}{5} x + 3$

Step-by-step explanation:

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7 0

2 years ago

What is - 3/4 x ( -12 ) please i need this by today

S_A_V [24]

-12 x -12 = 144 I’m pretty sure if not then it is something different

3 0

2 years ago

The sum of an infinite geometric series is three times the first term. Find the common ratio of this series.

adelina 88 [10]

Answer:

$\frac{2}{3}$

Step-by-step explanation:

The sum of an infinite geometric series is expressed according to the formula;

$S_\infty = \dfrac{a}{1-r}$ where;

a is the first term of the series

r is the common ratio

If the sum of an infinite geometric series is three times the first term, this is expressed as $S_\infty = 3a$

Substitute $S_\infty = 3a$ into the formula above to get the common ratio r;

$3a = \dfrac{a}{1-r} \\\\$

$cross \ multiply\\\\3a(1-r) = a\\\\3(1-r) = 1\\$

open the parenthesis

$3 - 3r = 1\\\\$

subtract 3 from both sides

$3 - 3r -3= 1-3\\\\-3r = -2\\\\r = \frac{2}{3}$

Hence the common ratio of this series is $\frac{2}{3}$

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2 years ago

Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong.

xeze [42]

10% of 500 is 50.

500-50 = 450

The reduced price is 450

7 0

2 years ago

Read 2 more answers