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3 years ago

Need help with this thank u for your help

Mathematics

1 answer:

Jlenok [28]3 years ago

4 0

Answer:

Gary's grocceries

Step-by-step explanation:

When you find how much it costs for one can at both stores gray's store is cheaper (.88 cents/per can) where as Marissa's store costs (1.2 dollars/ per can)

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Can you show the steps of the answers too? pleaseeee

vaieri [72.5K]

4(x+2) = 4·x + 4·2 = 4x + 8

3(x+7) = 3·x + 3·7 = 3x + 21

5(2x+7) = 5·2x + 5·7 = 10x + 35

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4 years ago

Can someone please help me I really need help

antoniya [11.8K]

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3 years ago

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How do you find the volume of a right triangular prism? Please explain each step. Thank you!!

dem82 [27]

Answer and Step-by-step explanation:

Remember the formula for calculating volume is:

Volume = Area by height

V = A X h.

For a triangle the area is calculated using the formula:

Area = half of base by altitude

A = 0.5 X b X a.

So to calculate the volume of a triangular prism, the formula is:

V = 0.5 X b X a X h.

3 0

4 years ago

HELP PLEASE BE QUICK

SVEN [57.7K]

Answer:

Step-by-step explanation:

<u>Area of a circle = πr^2</u>

64π / π = πr^2 / π

sqrt(64) = sqrt(r^2)

8 = r

Answer: 8

3 0

4 years ago

If thewronskian w of f and g is 3e4t,and if f(t) = e2t,find g(t).

ehidna [41]

$W(f(x),g(x))=\begin{vmatrix}f(x)&g(x)\\f'(x)&g'(x)\end{vmatrix}=f(x)g'(x)-g(x)f'(x)$

We have $f(t)=e^{2t}\implies f'(t)=2e^{2t}$ , so

$W(f(t),g(t))=e^{2t}g'(t)-2e^{2t}g(t)=3e^{4t}$
$\implies e^{-2t}g'(t)-2e^{-2t}g(t)=3$
$\implies\dfrac{\mathrm d}{\mathrm dt}[e^{-2t}g(t)]=3$
$\implies e^{-2t}g(t)=\displaystyle\int3\,\mathrm dt$
$\implies e^{-2t}g(t)=3t+C$
$\implies g(t)=3te^{2t}+Ce^{2t}$

where $C$ is any arbitrary constant.

8 0

4 years ago