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2 years ago

Ab= 6cm Ac=12cm Calculate the length of Ad Give your answer to 3 significant figures

Mathematics

1 answer:

Allisa [31]2 years ago

8 0

Answer:

12.686cm

Step-by-step explanation:

By using pythagoras, we can find CB.

We know that $a^2+b^2=c^2$

Therefore, $12^2-6^2=CB^2$

$CB=\sqrt{108}$ (it has to be positive since it is distance)

now we look at triangle BCD and use SOH CAH TOA.

$Sin55=CB/CD\\Therefore, CD= 12.686$

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3 years ago

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11Alexandr11 [23.1K]

Answer:

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2 years ago

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3 years ago

Write an equation in point-slope form of a line that goes through the points (1,4) and (3,-10). Do not use any spaces in your an

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Answer:

y-4=-7(x-1) OR y-(-10)=-7(x-3)

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In slope-intercept form, the equation would be y = -7x + 11

You could find the slope by using the slope equation, $\frac{y_{2} -y_{1} }{x_{2} -x_{1} }$ .

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6 0

2 years ago

Original price of a hotel: $240.00 per night.

lawyer [7]

Answer:

$ 929

Step-by-step explanation:

Given: Original price of stay in hotel= $240 per night

Discount= 25%

Total taxes and fee = 29%

Now, finding the price of stay for four night.

Using unitary method to solve:

As we know original price of hotel stay per night is $240

∴ Price of four night stay at original price is $240\times 4 = \$ 960$

Next, 25% discount given on the price of four night stay.

∴ $960 - \frac{25}{100} \times 960 = 960 - 240$

= $\$ 720$

∴Price of four night hotel stay after discount is $\$ 720$

Now, 29% taxes and fees been added to the price.

Price of hotel stay after discount + Taxes paid.

$720 + ( \frac{29}{100} \times 720) = 720 + 209$

= $\$ 929$

∴ $\$ 929$ is the price to be paid for four night stay at hotel after discount and taxes.

5 0

3 years ago