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olchik [2.2K]
3 years ago
7

What is -(8^-2) need to know how to do this asap

Mathematics
2 answers:
dlinn [17]3 years ago
7 0
Answer: - 1/64

Explanation: math shown below
yarga [219]3 years ago
3 0

Answer:

-\frac{1}{64}

Step-by-step explanation:

-(8^{-2})\\\\\\x^{-n}=\frac{1}{x^{n}}\\\\\\-(8^{-2})=-\frac{1}{8^{2}}\\\\=-\frac{1}{64}

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Ryan wants to buy a new guitar that costs $325.00. He already has $75 in his account and makes $20 per day. How many days will h
san4es73 [151]
Answer:I pretty sure it will be 12.5
I subtracted the total cost for the guitar by the money he already had and got 250
Then I did 250/20 and got 12.5
250 is the money that he still needs for the guitar

Hope it helps
5 0
2 years ago
Please answer and its math ​
Arte-miy333 [17]

one correct equation would be 2x=28 to depict the amount of money earned and then you would do 28/3 to find out the amount of money they each have after splitting the money they earned.

3 0
3 years ago
URGENT WILL GIVE BRAINLIEST ANSWER ASAP!
dmitriy555 [2]
3i = 105

To make i by itself, divide both sides by i.

i = 35

There you have it, 35 is the answer.
3 0
3 years ago
Read 2 more answers
What is the probability an individual student likes between 3 and 7 songs from Aesop Rock?
den301095 [7]

Answer:

BiG ChUnGuS  moo

Step-by-step explanation:

7 0
3 years ago
Bob purchased 2 hot dogs and 1 hamburger for S10. Later that day, Bob had to purchase more food and
Tom [10]

Answer:

Hotdog: $3.00

Hamburger: $4.00

Step-by-step explanation:

For the first time that Bob buys food, we can make an equation to find how much a single hotdog and a single hamburger costs, where:

x = cost of a hotdog

y = cost of a hamburger

He bought 2 hotdogs and 1 hamburger for $10, so the equation for his first time buying food is:

2x + y = 10

For the second time buying food, he bought 1 hotdog and 3 hamburgers for $15, so his equation would be:

x + 3y = 15

To find the value for x and y we need to solve this system of equations using the two equations we just came up with. We can do this multiple ways, but I'll be demonstrating the substitution method.

Using the second equation, we can solve for x by simply subtracting 3y from both sides:

x = 15 - 3y

We can then insert this value of x into the first equation so that way we are only dealing with one variable to solve - y:

2(15-3y) + y = 10

Distribute out the 2 into the paratheses, combine like terms, and then solve for y:

30 - 6y + y = 10

30 - 5y = 10

-5y = -20

y = 4

This means the cost for one hamburger is $4. But we still need to find the price of one hotdog, so we can insert this value of y into the equation we came up with earlier for x, and then solve for x:

x = 15 - 3y

x = 15 - 3(4)

x = 15 - 12

x = 3

So the price of one hotdog is $3 and the price of one hamburger is $4. Hope this helps.

3 0
3 years ago
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