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3 years ago

Please help with part b

Mathematics

2 answers:

grigory [225]3 years ago

8 0

Tthe box without the length will be 3.7 cm because if you look straigh ahead there is a shape thats congruent so it has the same length
You add all the numbers together + the 3.7
I hope this helps

kotykmax [81]3 years ago

3 0

I don't know what ur supposed to do but if u add them it equals 31.9 sorry if that's not what you have to do

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Answer:

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Step-by-step explanation:

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2 years ago

Given the right triangle shown below.if Cos A =15/17 and tan A=8/15 which of the following represents the length of BC

otez555 [7]

Answer:

The Figure for Right triangle is below,

Therefore , 15 unit length represents BC.

Step-by-step explanation:

Given:

Consider a right triangle ABC, Such that

$\cos A=\dfrac{15}{17}\\\\\tan A=\dfrac{8}{15}$

To Find:

BC = ?

Solution:

In Right Angle Triangle ABC, Cosine and Tangent identity

$\cos A = \dfrac{\textrm{side adjacent to angle C}}{Hypotenuse}\\$

$\tan A= \dfrac{\textrm{side opposite to angle A}}{\textrm{side adjacent to angle A}}$

BUT,

$\cos A=\dfrac{15}{17}\\\\\tan A=\dfrac{8}{15}$ ....Given

On Comparing,

Adjacent side to angle A = AB = 15

Opposite side to angle A = BC = 8

Hypotenuse = AC =17

Also Pythagoras theorem is Satisfies,

$(\textrm{Hypotenuse})^{2} = (\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}$

$(\textrm{Hypotenuse})^{2} = 17^{2}=289$

$(\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}=15^{2}+8^{2}=289$

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3 years ago

A shop is having a sale all items are reduced work out the sale price of an item normally priced at £60

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Question:

A shop is having a sales all items are reduced by 25%. Work out the sale price of an item normally priced at £60?

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The new price is £45

Step-by-step explanation:

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$New = Sales\ price - Reduction$

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Answer:

Step-by-step explanation:

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