Tamara found the solution of x^2=64 to be x=8.
what mistake did tamara make in finding her solution?
a. she found the incorrect square root of 64.
b. she only found the square root of one side of the equation.
c. she only found the positive square root, not the negative square root
d. she found the cube root of 64 instead of the square root.

C. She only found the positive square root, not the negative square root

Step-by-step explanation:

Tamara found the solution of x^2=64 to be x=8.

To remove square , we take square root from both sides

When we take square root we use + and -

Because square of positive and negative numbers are same

x=+-8

x=-8 , x=8

To we got two values for x

She only found the positive square root, not the negative square root

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.