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2 years ago

I need help with this please

Mathematics

1 answer:

ad-work [718]2 years ago

5 0

Answer:

hello the answer you are looking for should be s3xy kong 243

Step-by-step explanation:

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a pile of 34 coins consists of nickels and dimes. the total value of the coins is $3.30. find the number of each type of coin.

Dvinal [7]

It just means to multiply or divide

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3 years ago

A sales person makes $200 each week plus an additional $24 per sale. This sales person wants their weekly paycheck to be at leas

Serjik [45]

Answer: a.200 + 24x= 500
b. 12.5 sales but since you can’t make half a sale the answer will be 13

6 0

3 years ago

Find all the values of x where the tangent line is horizontal. 2x^3+36x^2+192x+12

Afina-wow [57]

At x = -4 and -8
Take the derivative of the given equation to find rate of change of the graph.
f'(x) = 6x^2 + 72x + 192
At a horizontal tangent, f'(x) = 0, so set the equation equal to 0 and solve. Eventually you get x = -4 and -8

3 0

3 years ago

Prove : sin²θ + cos²θ = 1 thankyou ~

Gnom [1K]

Answer:

See below

Step-by-step explanation:

Here we need to prove that ,

$\sf\longrightarrow sin^2\theta + cos^2\theta = 1$

Imagine a right angled triangle with one of its acute angle as $\theta$ .

The side opposite to this angle will be perpendicular .
Also we know that ,

$\sf\longrightarrow sin\theta =\dfrac{p}{h} \\$

$\sf\longrightarrow cos\theta =\dfrac{b}{h}$

And by Pythagoras theorem ,

$\sf\longrightarrow h^2 = p^2+b^2 \dots (i)$

Where the symbols have their usual meaning.

Now , taking LHS ,

$\sf\longrightarrow sin^2\theta +cos^2\theta$

Substituting the respective values,

$\sf\longrightarrow \bigg(\dfrac{p}{h}\bigg)^2+\bigg(\dfrac{b}{h}\bigg)^2\\$

$\sf\longrightarrow \dfrac{p^2}{h^2}+\dfrac{b^2}{h^2}\\$

$\sf\longrightarrow \dfrac{p^2+b^2}{h^2}$

From equation (i) ,

$\sf\longrightarrow\cancel{ \dfrac{h^2}{h^2}}\\$

$\sf\longrightarrow \bf 1 = RHS$

Since LHS = RHS ,

Hence Proved !

I hope this helps.

5 0

2 years ago

Someone help and please make sure the answer is right

lord [1]

Answer:

it's 12

Step-by-step explanation:

5(12) =60

60+17=77

8 0

3 years ago