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2 years ago

7900 in standard form

Mathematics

1 answer:

ad-work [718]2 years ago

4 0

Answer:

7.9 X 10^3

standard form means it has to between 1 and 10

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Need the missing length

Gala2k [10]

Answer:

Step-by-step explanation:

The side to the right is 15. The side to the left is 5. You can subtract these two to find the length.

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3 years ago

Read 2 more answers

The length and width of a rectangle are measured as 55 cm and 49 cm, respectively, with an error in measurement of at most 0.1 c

valentina_108 [34]

Answer:

The maximum error in the calculated area of the rectangle is $10.4 \:cm^2$

Step-by-step explanation:

The area of a rectangle with length $L$ and width $W$ is $A= L\cdot W$ so the differential of <em>A</em> is

$dA=\frac{\partial A}{\partial L} \Delta L+\frac{\partial A}{\partial W} \Delta W$

$\frac{\partial A}{\partial L} = W\\\frac{\partial A}{\partial W}=L$ so

$dA=W\Delta L+L \Delta W$

We know that each error is at most 0.1 cm, we have $|\Delta L|\leq 0.1$ , $|\Delta W|\leq 0.1$ . To find the maximum error in the calculated area of the rectangle we take $\Delta L = 0.1$ , $\Delta W = 0.1$ and $L=55$ , $W=49$ . This gives

$dA=49\cdot 0.1+55 \cdot 0.1$

$dA=10.4$

Thus the maximum error in the calculated area of the rectangle is $10.4 \:cm^2$

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2 years ago

Find the area of these two rectangles, show your work.

ratelena [41]

Answer:

1. 4.5

Step-by-step explanation:

3 x 1.5 = 3 x 1 1/5 = 4.5

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2 years ago

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What percentage was your phone at when you plugged it in?

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2 years ago

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KatRina [158]

Answer:

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Step-by-step explanation:

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1 year ago