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3 years ago

I need help from number 3 plzzzz ASAP

Mathematics

2 answers:

USPshnik [31]3 years ago

5 0

Answer:2.18 m

Step-by-step explanation:

When you draw it it forms a right angled triangle. In order to get the height we must use sine.

The sine of 27° is the height divided by 4.8 m

kumpel [21]3 years ago

5 0

Answer:

2.18 m to nearest hundredth.

Step-by-step explanation:

The slide, the ground and the height make a right angled triangle:

Hypotenuse = 4.8m , height ( opposite side) is to be found so we use the sine function:

sin 27 = opposite side / hypotenuse

sin 27 = h / 4.8

h = 4.8 sin 27

= 2.179 m.

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If sin A = 3/8, find the value of cosec A - sec A.

alexira [117]

Answer:

$\csc A - \sec A = \dfrac 83 + \dfrac{8}{\sqrt{55}}\\\\\csc A - \sec A = \dfrac 83 - \dfrac{8}{\sqrt{55}}$

Step by step explanation:

$\text{Given that,}\\\\~~~~~~\sin A = \dfrac 38 \\\\\implies \sin^2 A = \dfrac 9{64}\\\\\implies 1 - \cos^2 A = \dfrac{9}{64}\\\\\implies \cos ^2 A = 1 - \dfrac 9{64}\\\\\implies \cos^2 A = \dfrac{55}{64}\\\\\implies \cos A =\pm\sqrt{\dfrac{55}{64}}\\ \\\implies \cos A = \pm\dfrac{\sqrt{55}}8\\\\$

$\implies \dfrac 1{\cos A} = \pm\dfrac{8}{\sqrt{55}}$

$\text{Now,}\\\\\csc A - \sec A\\\\=\dfrac{1}{\sin A}- \dfrac{1}{\cos A}\\\\=\dfrac 83 -\left(\pm \dfrac 8{\sqrt {55}} \right)\\ \\\text{Hence,}\\\\\csc A - \sec A = \dfrac 83 + \dfrac{8}{\sqrt{55}}\\\\\csc A - \sec A = \dfrac 83 - \dfrac{8}{\sqrt{55}}$

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2 years ago

What is the quotient and remainder of 8 divided 25

Gemiola [76]

the answer is 3 reminder 1

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3 years ago

If you inflate a beach ball with 14,130 cubic inches of air, what will its radius be? Use 3.14 for π. Round to the nearest whole

GREYUIT [131]

Answer: 15

Step-by-step explanation:

The answer is because if you divide 14,130 by 3.14. You'll get 4500 and then divide that by 300 and your finally is 15

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3 years ago

The cost to purchase a song from iTunes is $0.99 per song. To purchase a song from Napster, you must be a member. The Napster me

vlada-n [284]

Answer:

It will take 100 songs for the monthly price of Napster to cost the same as iTunes.

Step-by-step explanation:

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T(d)=0.99d

N(d)=0.89d+10

In order for us to find when the two prices will be the same, let's set the equations equal to each other and solve for x:

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4 0

3 years ago

Read 2 more answers

5^-1 = blank * 5^4 find the missing factor

skad [1K]

Answer:

1/3125 or, 5^-5

Step-by-step explanation:

5^-1 = blank * 5^4

1/5/625= blank or, 5^-1/5^4=blank

blank=1/3125 5^-5=blank

4 0

3 years ago