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3 years ago

how can I write a decimal addition problem that requires regrouping the hundredths and how will I know that I need to regroup?

1 answer:

6 0

Ok all you need to do is add the decimals together and regroup like regular addition put the decimals on top of each other boom

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16) Italia and Hugo sold a total of 137 glitter tattoos at the football game. Hugo sold

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3 years ago

$3.68÷17= step by step

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Three ventilation fans, each working alone, can clear the smoke out of a room in 12 hours, 16 hours, and 24 hours respectively. How long would it...

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3 years ago

Can someone explain this differentiation question to me? I can differentiate but then I'm not sure what I am doing

weeeeeb [17]

note that gradient = $\frac{dy}{dx}$ at x = a

calculate $\frac{dy}{dx}$ for each pair of functions and compare gradient

(a)

$\frac{dy}{dx}$ = 2x and $\frac{dy}{dx}$ = - 1

at x = 4 : gradient = 8 and - 1 : 8 > - 1

(b)

$\frac{dy}{dx}$ = 2x + 3 and $\frac{dy}{dx}$ = - 2

at x = 2 : gradient = 7 and - 2 and 7 > - 2

(c)

$\frac{dy}{dx}$ = 4x + 13 and $\frac{dy}{dx}$ = 2

at x = - 7 : gradient = - 15 and 2 and 2 > - 15

(d)

$\frac{dy}{dx}$ = 6x - 5 and $\frac{dy}{dx}$ = 2x - 2

at x = - 1 : gradient = - 11 and - 4 and - 4 > - 11

(e)

y = √x = $x^{\frac{1}{2} }$

$\frac{dy}{dx}$ = 1/(2√x) and $\frac{dy}{dx}$ = 2

at x = 9 : gradient = $\frac{1}{6}$ and 2 and 2 > $\frac{1}{6}$

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4 years ago

What is the volume of the following cylinder?

Vika [28.1K]

Volume of a cylinder of radius r and heigth h is
$\pi {r}^{2} h$
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4 years ago

Find the product of 4 (78 + 3).

DanielleElmas [232]

Step-by-step explanation:

$\bold{METHOD\ 1:}\\\\\text{Use PEMDAS}\\\\4(78+3)=4\cdot81=324\\\\\bold{METHOD\ 2:}\\\\\text{Use the distributive property:}\ a(b+c)=ab+ac\\\\4(78+3)=(4)(78)+(4)(3)=312+12=324$

8 0

4 years ago

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