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faust18 [17]
3 years ago
6

The quotient of the opposite of 30 and 6 plus the opposite of eight

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
6 0
Step one: -30 ÷ 6 + (-8)
step two: -5 + (-8) 
step three: -5 - 8
<span>Answer    -13</span>
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Fay has a lemonade stand. She spends £35 on ingredients. She sells each glass of lemonade for £2.10. If she sells 50 glasses of
Zarrin [17]

Answer:

£70.00

Step-by-step explanation:

You basically want to find what she spent in total, then subtract the amount she spent on ingredients.

50 glasses of lemonade at £2.10 each would be £105. (50*2.1)

Subtract the cost of ingredients, which is £35, with the total she made, £105, to get £70 (105-35)

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3 years ago
What is y in 15=-7.5x^2+86x+702
dexar [7]

Answer:

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3 years ago
In Exercise, find the derivative of the function.<br> y = ln(3 + x2)
erastovalidia [21]

Answer:  \dfrac{2x}{3 + x^2}

Step-by-step explanation:

We know the property of derivative: \dfrac{d}{dx}(\log (x))=\dfrac{1}{x}

Given function : y=\ln(3 + x^2)

Differentiate both sides with respect to x , we get

\dfrac{dy}{dx}=\dfrac{d}{dx}(\ln(3 + x^2))

\Rightarrow\ \dfrac{dy}{dx}=\dfrac{1}{3 + x^2}\cdot\dfrac{d}{dx}(3 + x^2)  [By Chain rule]

\Rightarrow\ \dfrac{dy}{dx}=\dfrac{1}{3 + x^2}\cdot(0+2x)

[Since \dfrac{d}{dx}(a)=0 , where a is scalar and \dfrac{d}{dx}(x^n)=n(x)^{n-1}]

\Rightarrow\ \dfrac{dy}{dx}=\dfrac{2x}{3 + x^2}

Hence, the derivative of the given function is \dfrac{2x}{3 + x^2} .

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3 years ago
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RUDIKE [14]

Answer:b

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5 0
3 years ago
7w = 49 Can anybody help me with this one too?
lesantik [10]

Answer:

w=7.

Step-by-step explanation:

Divide 7 on both sides of the equation.

4 0
3 years ago
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