3 years ago

I think this is the last one

Mathematics

1 answer:

Pepsi [2]3 years ago

5 0

Answer:

3 x 4 x 5 is 60

so the answe would be 60 cm^3

Step-by-step explanation:

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An author is paid $500 as an advance on their book plus an additional $4 for every book sold. If the author earns $880, how many

Ludmilka [50]

X will stand for every extra book sold

880 = 4x + 500
subtract 500 from both sides

380 = 4x
divide both sides by 4

x = 95
they sold 95 books

4 0

3 years ago

Proof that :<br><img src="https://tex.z-dn.net/?f=%20%7Bsin%7D%5E%7B2%7D%20%5Ctheta%20%2B%20%20%7Bcos%7D%5E%7B2%7D%20%5C%3A%5Cth

Arisa [49]

Answer:

Solution given:

Right angled triangle ABC is drawn where <C= $\theta$

we know that

$\displaystyle Sin\theta=\frac{opposite}{hypotenuse} =\frac{AB}{AC}$

$\displaystyle Cos\theta=\frac{adjacent}{hypotenuse}=\frac{BC}{AC}$

Now

left hand side

$\displaystyle {sin}^{2} \theta + {cos}^{2} \:\theta$

Substituting value

$(\frac{AB}{AC})²+(\frac{BC}{AC})²$

distributing power

$\frac{AB²}{AC²}+\frac{BC²}{AC²}$

Taking L.C.M

$\displaystyle \frac{AB²+BC²}{AC²}$ ....[I]

In ∆ABC By using Pythagoras law we get

$\boxed{\green{\bold{Opposite²+adjacent²=hypotenuse²}}}$

AB²+BC²=AC²

Substituting value of AB²+BC² in equation [I]

we get

$\displaystyle \frac{AC²}{AC²}$

Right hand side

<h3><u>proved</u></h3>

8 0

3 years ago

Read 2 more answers

What is the product?

jekas [21]

Answer:

Step-by-step explanation:

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3 years ago

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She needs 7 plates because there are 7 pieces left.

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4 years ago

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4 years ago

I think this is the last one ​

I think this is the last one