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3 years ago

±√121 what is the answer

Mathematics

2 answers:

oee [108]3 years ago

8 0

Answer:

±√121 = ±11 (11, -11)

Step-by-step explanation:

1.First, find two equal numbers multiplied by each other to get 121:

This will be 11×11, so the answer for the square root is +11 or -11.

2. Or you can find the square root of a number using this method:

draw a line splitting two sides from each other.

then, write the number inside the square root on the left side of the line.

after that, on the right side, write a number that can be divided by 121 ( it should be a whole number and a prime number).
write the answer to the division on the left side of the line.
next, rewrite the two steps above by writing a number that can be divided by the answer of the division.
stop writing the number when you get to number one on the left and right sides.
finally, match every two equal number together to make it on the number and multiply them together to get the answer for the square root.
you can understand it more from the picture below, I also did another example for this method.

HACTEHA [7]3 years ago

6 0

Answer:

±11 is the answer........

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Let's first establish what we already know for this problem.

x = total number of hotdogs sold
y = total profit from total sales of hotdogs

Let's also establish the other equations which we will require in order to solve this problem.

Equation No. 1 -
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Equation No. 2 -
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STEP-BY-STEP SOLUTION

From this, we can use the formula y = mx + b & substitute the values for x & y from one of the two previous equations into the formula in order to obtain the values of m & b for the final equation. Here is an example of the working out as displayed below:

Firstly, using the first or second equation, we make either m or b the subject. Here I have used the first equation and made m the subject:

Equation No. 1 -
y = mx + b
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Now, make b the subject in the second equation as displayed below:

Equation No. 2 -
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210 = 80m + b
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Then, substitute m from the first equation into the second equation.

Equation No. 2 -
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m = ( 90 - ( - 30 ) / 40
m = ( 90 + 30 ) / 40
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Through this, we have established that:

m = 3
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