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olya-2409 [2.1K]
3 years ago
9

Find the value of 81^-1/2

Mathematics
2 answers:
Nuetrik [128]3 years ago
6 0

Answer:

1/9 i think :)

Step-by-step explanation:

bazaltina [42]3 years ago
4 0

Answer:

0.00102880658

Step-by-step explanation:

:)

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Finding the perimeter of each rectangle 96ft width 124ft length
dezoksy [38]

Answer:

440 ft

Step-by-step explanation:

Perimeter(p) of a rectangle is 2l + 2w

Where 'l' is the length and 'w' is the width.

p = 2(96ft) + 2(124ft) = 192 ft + 248 ft = 440 ft

5 0
3 years ago
What is 5 raised to the 5th power?
Roman55 [17]
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8 0
3 years ago
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elaine opened a saving account with a deposit of 1000. The interest on her account is compounded each year at a rate of 2%. Elai
vivado [14]

Answer:

$1,061

Step-by-step explanation:

2% of 1000 is 20.

If 2% is compounded yearly, then

year one- $1,020

year two- $1,040.40

year three- $1,061.21

Rounded to the nearest whole dollar, Elaine would have $1,061 in her savings account after three years.

5 0
3 years ago
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Are the graphs of 2x-4y=-12 and y=2x+1 parallel, perpendicular, or neither?
Sauron [17]

Answer:

I believe the answer is neither

Step-by-step explanation:

4 0
2 years ago
Can someone help me on this question?
notsponge [240]

Answer:

x = 19.6

Step-by-step explanation:

By applying cosine rule in ΔBCD,

cos(30)° = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

              = \frac{BC}{BD}

\frac{\sqrt{3}}{2}=\frac{BC}{16}

BC = 8\sqrt{3}

Now, by applying sine rule in ΔBAC,

sin(45)° = \frac{\text{Opposite side}}{\text{Hypotenuse}}

\frac{1}{\sqrt{2}}=\frac{AB}{BC}

\frac{1}{\sqrt{2}}=\frac{x}{8\sqrt{3}}

x = 8\sqrt{6}

x = 19.59

x ≈ 19.6  

3 0
3 years ago
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