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katrin [286]
2 years ago
6

(7^x)^y = 7 What is x • y?

Mathematics
1 answer:
mars1129 [50]2 years ago
4 0

Answer:

x \cdot y=1

Step-by-step explanation:

(7^x)^y = 7

Apply exponent rule (a^b)^c=a^{bc}:

\implies7^{xy}=7^1

\implies x \cdot y=1

Possible values for x and y:  x=\dfrac12 \ \ \ \ \  y=2

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Please help me it's in like 10 minutes..................
FrozenT [24]

Answer:

The annual interest rate is 12.05%

Step-by-step explanation:

4 0
3 years ago
Need to find the value of y
alexgriva [62]

Answer:

√55

Step-by-step explanation:

Notice that the small triangle in the bottom corner shares an angle with the overall triangle.  Also, they are both right triangles.  Therefore, they are similar triangles.

Notice that the large triangle at the top shares an angle with the overall triangle and is also a right triangle.  Therefore it is also similar to the overall triangle and the smaller triangle.

Writing a proportion between the small and large triangles:

y / 11 = 5 / y

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3 0
3 years ago
Joyce paid $220 for an item at the store that was 35 percent of the original price. What was the original price?
allochka39001 [22]

Answer:

The original price of item was $ 628.57

Step-by-step explanation:

Given as :

The amount paid fro an item = $ 220

And The paid amount was 35 % of the original price

Let The original price be x

So, According to question ,

35% of original price = $ 220

Or, 35% of x = $ 220

Or,    x = \frac{220\times 100}{35}

Or,    x = $ 628.57

Hence The original price of item was $ 628.57    Answer

8 0
3 years ago
Use the distributive property to write the following expressions in expanded form. e ( f + g )
NemiM [27]

Answer:

ef + eg

Step-by-step explanation:

Distributive Property: a(b +c) = (a*b) + (a*c)

e(f +g) = e*f + e*g

           = ef + eg

4 0
3 years ago
Write the phrase as an expression. Then simplify the expression. 7 plus sum of a number x and 5
jeka57 [31]
7+(x+5) would be the answer because sum means addition and it says x and 5. then it says 7 plus that so you put 7. In reality you wouldn't need parenthesis, but if you want it to match the phrase, you can put it in parenthesis.
4 0
3 years ago
Read 2 more answers
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