$\text{The principal square root}:\\\\\sqrt{a}=b\iff a^2=b\ \text{for}\ a\geq0\ \text{and}\ b\geq0.\\\\\text{The square root:}\\\\\sqrt{a}=b\iff b^2=a\ \text{for}\ a\geq0\\===================$

$\text{If you want the principal square root (arithmetic square root):}\\\\\sqrt{225}=15\ \text{because}\ 15^2=225\\\\\text{If you want square root (algebraic square root):}\\\\\sqrt{225}=\pm15\ \text{because}\ (-15)^2=225\ \text{and}\ 15^2=225$

7 0

3 years ago

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A parallelogram with sides lengths of 5 inches and 12 inches and a height of 3 inches. Question What is the perimeter of this pa

UkoKoshka [18]

The perimeter of a shape is the sum of its lengths. A parallelogram has four sides with two pairs of equal sides. In this case, those sides are 5 inches and 12 inches. So, the perimeter is 12*2+5*2=24+10=34 inches.

8 0

3 years ago

Rachel, Kayla, and Francesca raised $35.67 for their basketball team. Rachel and Kayla each raised the same amount, and Francesc

nata0808 [166]

Answer: Expression for the amount raised by Rachel = x

Expression for the amount raised by Francesca = x+10.50

Step-by-step explanation:

Let x = the amount raised by Kayla.

Since Rachel and Kayla each raised the same amount.

then, expression for the amount raised by Rachel = x

Francesca raised $10.50 more than each of them.

Then, expression for the amount raised by Francesca = x+10.50

6 0

2 years ago