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2 years ago

Please help Which one is correct?

Mathematics

1 answer:

zlopas [31]2 years ago

8 0

Answer:

The first one

Step-by-step explanation:

3/5 and 9/25

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Jen is planning a trip to France. The exchange rate is 3 Euros for $4. How many Euros will she get if she exchanged $28? DO NOT

Nonamiya [84]

The answer would be 21 euros

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2 years ago

A boat is 60m from the base of a lighthouse. The angle of depression between the lighthouse and the boat is 37°. How tall is the

LekaFEV [45]

Answer: 34.64 m

Step-by-step explanation:

Given: A boat is 60 m from the base of a lighthouse.

The angle of depression between the lighthouse and the boat is 37°.

By using trigonometric ratios :

$\tan x=\dfrac{\text{Side opposite to }x}{\text{Side adjacent to }x}$

here x= 37°, side opposite to x = height of lighthouse (h) , side adjacent to x = 60 m

$\tan 37^{\circ}=\dfrac{h}{60}\\\\\Rightarrow\ 0.57735=\dfrac{h}{60}\\\\\Rightarrow\ h= 60\times0.57735\approx34.64$

Hence, the lighthouse is 34.64 m tall.

6 0

2 years ago

ILL GIVE BRAINLEST- select each classification that describes the triangle shown.

denis23 [38]

Answer:

Obtuse, isosceles

Step-by-step explanation:

Classify. Two same length sides make it isosceles

A larger angle than 90° make it obtuse

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

7 0

2 years ago

Which values of a and b in the exponential function y = a times b Superscript x would result in the following graph? On a coordi

galina1969 [7]

Answer:

$a =-3$ $b =2$

Step-by-step explanation:

Given

$y = ab^x$

$(x_1,y_1) = (0,-3)$

Required

Find a and b

Substitute $(x_1,y_1) = (0,-3)$ for x and y in $y = ab^x$

$-3 = ab^0$

$-3 = a * 1$

$-3 = a$

Rewrite as:

$a =-3$

The above implies that (a) is correct;

Hence:

$a =-3$ $b =2$

So, the equation is:

$y = -3(2)^x$

6 0

2 years ago

Read 2 more answers

Are these correct? ILL MARK YOU BRAINLIEST

Oxana [17]

Answer:

Yes

Step-by-step explanation:

1) Cos 300 = Cos (360 - 60) = Cos 60 {Cos 360 - theta = Cos theta}

= 1/2

Sin 300 = Sin (360 - 60) = -Sin 60 = $\frac{-\sqrt{3}}{2}$

3) 3π/4 = 3*180/4 = 135

Cos 135 = Cos (90 + 45) = -Cos 45 = $\frac{-\sqrt{2}}{2}$

Sin 135 = Sin (90 + 45) = Sin 45 = $\frac{\sqrt{2}}{2}$

7 0

2 years ago