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KATRIN_1 [288]
2 years ago
12

What’s the answer?????? #10

Mathematics
1 answer:
Marizza181 [45]2 years ago
5 0

Answer:

1024 or A

Step-by-step explanation:

64 x4 is 256 x4 it's a 1024

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If rope costs $3.20 per yard or $0.15 per inch which is the better deal?
PtichkaEL [24]

Answer:

3.20 per yard because there are 36inches in a yard 36×0.5=5.40

8 0
3 years ago
What is the midpoint between (-6,2) and (10,4)
mario62 [17]

Answer:

(2,3)

Step-by-step explanation:

To find the x-coordinate of the midpoint, find the average of -6 and 10.  It is 4/2, or 2.  

To find the y-coordinate, proceed similarly.  Find the average of 2 and 4.  It is 3.

Thus, the midpoint is (2, 3).

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3 years ago
Rewrite the statement in mathematical notation. (Let y be the distance from the top of the ladder to the floor, x be the distanc
In-s [12.5K]

Answer:

\frac{dy}{dt}=\frac{6y}{x}\text{ ft per sec}

Step-by-step explanation:

Let L be the length of the ladder,

Given,

x = the distance from the base of the ladder to the wall, and t be time.

y = distance from the base of the ladder to the wall,

So, by the Pythagoras theorem,

L^2 = y^2 + x^2

\implies L = \sqrt{y^2 + x^2},

Differentiating with respect to time (t),

\frac{dL}{dt}=\frac{d}{dt}(\sqrt{x^2 + y^2})

=\frac{1}{2\sqrt{x^2 + y^2}}\frac{d}{dt}(x^2 + y^2)

=\frac{1}{2\sqrt{x^2 + y^2}}(2x\frac{dx}{dt}+2y\frac{dy}{dt})

=\frac{1}{\sqrt{x^2 +y^2}}(x\frac{dx}{dt}+y\frac{dy}{dt})

Here,

\frac{dy}{dt}=-6\text{ ft per sec}

Also, \frac{dL}{dt} = 0           ( Ladder length = constant ),

\implies \frac{1}{\sqrt{x^2 +y^2}}(x(-6)+y\frac{dy}{dt})=0

-6x + y\frac{dy}{dt}=0

y\frac{dy}{dt}=6x

\implies \frac{dy}{dt}=\frac{6y}{x}\text{ ft per sec}

Which is the required notation.

8 0
3 years ago
Abby can buy bottles of water in packages of 6 for $8.22 or in packages of 4 for $8.52. How much money does she save by buying 1
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She would save $9.12 by using the better sale! I hope this helped!:)
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4 years ago
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