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frosja888 [35]
2 years ago
14

Evaluate the expression. (-3)^-2

Mathematics
2 answers:
Romashka [77]2 years ago
8 0

Answer:

I love daddies

Step-by-step explanation:

i love daddies

Wewaii [24]2 years ago
3 0

~~(-3)^{-2}\\\\\\=\dfrac 1{(-3)^2}~~~~~~~~~~~~~~~~~~~~~~~~~;\left[k^{-n} = \dfrac 1{k^n},~~~ k \neq 0\right]\\\\\\=\dfrac 1{(-1)^2 \cdot 3^2}\\\\\\=\dfrac 1{1 \times 9}\\\\\\=\dfrac 19

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Fiften increased by a number​
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Answer:

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Step-by-step explanation:

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2 years ago
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Write 7 in the form a + ib
11Alexandr11 [23.1K]

Answer:

Step 1. A=4

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2 years ago
Find the product of 2 5/6x 1 3/4
Drupady [299]
2 5/6 = 2.83
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7 0
3 years ago
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When Cullen cleaned behind his dresser, he found 73 cents, all in nickels and pennies. There were 25 coins. How many were nickel
Georgia [21]
Let n = number of nickels, and p = number of pennies.
The number of coins is 25, so we get this equation.
n + p = 25

The value of the coins is 0.05 per nickel, and 0.01 per penny.
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Now you have a system of equations.

n + p = 25
0.05n + 0.01p = 0.73

Solve the first equation for n:
n = 25 - p

Now substitute into the second equation.

0.05(25 - p) + 0.01p = 0.73

1.25 - 0.05p + 0.01p = 0.73

-0.04p = -0.52

p = 13

There were 13 pennies.
Now we substitute 13 for p in n + p = 25 to find out the number of nickels.

n + 13 = 25
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There are 13 pennies and 12 nickels.

Check: 13 pennies and 12 nickels does total 25 coins.
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Our answer is correct.
5 0
3 years ago
How is the graph of y = -8x2 - 2 different from the graph of y = -8x2?
Aleks04 [339]

Answer:

(Answer D)

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Please use " ^ " to indicate exponentiation:  y = -8x^2 - 2, y = -8x^2

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That of y = -8x^2 - 2 is the same as above, except that the whole graph has been shifted 2 units down (Answer D).

4 0
3 years ago
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