3 years ago

Which number multiplied by itself will give the output as 12345678987654321?

1 answer:

3 0

Answer:what we observe is that the square of the number follows a pattern: 2 1's gives 121. 3 1's gives 12321. so to get 12345678987654321 we need to get square of 9 1's(111,111,111).

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Please please help with this!!

BlackZzzverrR [31]

Answer: 115

Step-by-step explanation:

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3 years ago

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The length of a rectangle is 1 ft less than double the width, and the area of the rectangle is 21 ft^2. Find the dimensions of t

ICE Princess25 [194]

Let the width be w, then length = 2w - 1

Area = length times width = w(2w - 1) = 21.

Thus, 2w^2 - w = 21 or 2w^2 - w - 21 = 0

Solving the quadratic equation gives that w = 3.5.

Therefore, width is 3.5 ft and length is 2(3.5) - 1 = 6 ft.

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3 years ago

PLEASE HELP ASAP!! an onion soup recipe calls for 3 2/3 cups of chopped onions. katrina has already chopped 1 1/3 cups of onions

ivanzaharov [21]

Answer:

$x+1\frac{1}{3}=3\frac{2}{3}$

Step-by-step explanation:

Let the number of cups of onions Katrina still needs to chop = x

She has already chopped the onions = $1\frac{1}{3}$ cups ≈ $\frac{4}{3}$ cups

So total amount of chopped onions = $(x+\frac{4}{3})$ cups

Since, onion soup recipe calls for the chopped onions = $3\frac{2}{3}$ cups ≈ $\frac{11}{3}$ cups

Therefore, equation which shows the number of cups of onions to be chopped more will be,

$x+1\frac{1}{3}=3\frac{2}{3}$

We further solve this equation for the value of x,

x = $\frac{11}{3}-\frac{4}{3}$

x = $\frac{(11-4)}{3}$

= $\frac{7}{3}$ cups

≈ $2\frac{1}{3}$ cups

5 0

3 years ago

Convert 3,250 mL to L. 3.25 L 0.325 L 3,250,000 L 325,000 L

Sergio [31]

Answer:

3.25 L

Step-by-step explanation:

1L=1000mL

3250ml x1L/1000mL = 3.25L

6 0

3 years ago

River C is 500 miles longer than River D. If the sum of their lengths is 5,560 miles, what is the length of each river?

AleksAgata [21]

Answer:

River D: 2780 River C: 2280

Step-by-step explanation:

Please mark brainliest

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3 years ago

Which number multiplied by itself will give the output as 12345678987654321?​

Which number multiplied by itself will give the output as 12345678987654321?