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3 years ago

Explain how using basic facts can help you find 10x20x30x40 mentally

Mathematics

2 answers:

natulia [17]3 years ago

5 0

1*2*3*4*10000
6*4*10000
24*10000
240000

11111nata11111 [884]3 years ago

3 0

Hi Softballgirl6! I would say that first, we could pretend that the zeros don't exist because we could add those in later. Then just working with 1x2x3x4, we could mentally solve this to 24 and then add in the extra 4 zeros that we left out at the beginning. This brings the answer to 240000. Hope this helps! :)

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stepan [7]

Answer:

Step-by-step explanation:

1. To find the area of a semicircle the formula is

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$A=a^2=2^2=4m^2\\6.283+4=10.283m^2$

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$A=wl=8*13=104m^2$

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3 0

3 years ago

Read 2 more answers

BRAINLEST + THANKS! (college algebra/ pre-cal)

Jobisdone [24]

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3 years ago

Can I have halp with all and an explanation because I am terrible at properties.

Salsk061 [2.6K]

1. 4 • (–3) • 5
so 4 x (-3) = -12 and then -12 x 5 = -60
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4. 5 x 12 x (-2)
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5. 35(26)(0) =
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3 years ago

Keli is buying pajamas for her five closest friends. Using the graph shown below, how much money will it cost her if she decides

Oksi-84 [34.3K]

Answer:

Your answer is B

Step-by-step explanation:

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3 years ago

A farmer builds a fence to enclose a rectangular pasture.He uses 155 feet of fence. Find the total area of the pasture if it is

ICE Princess25 [194]

The area for the perimeter of a rectangle is:
<em>P = 2l + 2w</em>
In this problem, we are given that P = 155 and l = 45.5. To solve for area, we must find w. To do this, plug in the given info and isolate the w like so:
$155=2(45.5)+2w \\ 155=91+2w \\ (155)-91=(91+2w)-91 \\ 64=2w \\ \frac{64}{2} = \frac{2w}{2} \\ w=32$
Now we know w = 32. Knowing all the necessary info, we can use the area formula, <em>A=lw</em>, to solve for A.
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Hope this helps!

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3 years ago