X^2 + 2x = -1......take half of ur x term (2x), and square it. So we take half of 2, which is 1, and square it....1^2 = 1....so u would add 1 to both sides

8 0

3 years ago

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If F(x) = log 5 2x, find F^-1(x). a. 5^y=2x b. 5^2y=x c. y = (5^x)/2

gregori [183]

Answer:

y = $\frac{5^{x} }{2}$

Step-by-step explanation:

y = log 5 2x

inverse ------> y=x

x = log 5 2y

$5^{x} = 2y$

y = $\frac{5^{x} }{2}$

4 0

3 years ago

Solve each solution. Check your solution. -32 = -4b

statuscvo [17]

You need to divide-4 on both sides which will get you 8.hope this helps

7 0

3 years ago

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Debbie found a suitcase that was originally 129 but now is on sale for 30% off. If sales tax is 8.75%, what is her final cost?

Marizza181 [45]

Step-by-step explanation:

To find the answer we first multiply 129 by 0.7 since the price descresed 30 percent. each percent is equal to 0.01.

129 * 0.7 = 90.3

Then we multiply 90.3 by 1.0875 since that is the sales tax

90.3 * 1.0875 = 98.2

so the cost is 98.2

6 0

2 years ago

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