3 years ago

Simplify the following expression. 7^-5/6.7^-7/6. 1/491/141449

1 answer:

4 0

${7}^{ - \frac{5}{6} } \times {7}^{ - \frac{7}{6} } \\ = {7}^{ - \frac{5}{6} - \frac{7}{6} } \\ = {7}^{ - \frac{12}{6} } \\ = {7}^{ - 2} \\ = \frac{1}{ {7}^{2} } \\ = \frac{1}{49}$
The answer is 1/49

You might be interested in

What is 770,070 in word form please

amid [387]

<span>seven hundred and seventy thousand and seventy is the word form of 770,070</span>

8 0

4 years ago

Please help me on math???

hjlf

The answer is a..................................

3 0

3 years ago

Read 2 more answers

If x represents the amount Rita earns each week, which expression represents the amount she earns in a year?

Bezzdna [24]

52x because there are approximately 52 weeks in a year.

6 0

3 years ago

Read 2 more answers

Determine the two closest integers for each irrational number also 117 not in pic

Grace [21]

1.) 4.358898944
2.) 7.071067812

6 0

3 years ago

A boundary stripe 6 in. wide is painted around a rectangle whose dimensions are 120 ft by 230 ft. Use differentials to approxima

Nimfa-mama [501]

Answer:

350 square feet

Step-by-step explanation:

We are given that

Width of strip=6 in

Dimension of rectangle= $20 ft\times 230 ft$

We know that

Area of rectangle ,A=xy

Differentiate

$dA=\frac{\partial A}{\partial x}x+\frac{\partial A}{\partial y}y$

We have $\frac{\partial A}{\partial x}=y=230 ft$

$\frac{\partial A}{\partial y}=x=120$

$dx=\frac{12}{12}=1 ft$

1 ft=12 in

Because 6 in added in both side of breadth

dy= $\frac{12}{12}=1 ft$

Because 6 in added on both sides of length of rectangle

Substitute the values

$dA=230\times 1+120\times 1=350 ft^2$

Hence, the number of square feet of paint in the strip=350 square feet

7 0

4 years ago