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lord [1]
3 years ago
6

(8-9)-(9+3)*5 5+(5+5+6)+9 (5/3-3) 2*3+(4*2)/2

Mathematics
1 answer:
Fynjy0 [20]3 years ago
4 0

Answer:

Step-by-step explanation:

Next time, please include the instructions.  I am assuming that the instructions state, "evaluate the following."

a) (8-9)-(9+3)*5  According to order of operations rules, we must do any work inside parentheses first, followed by any multiplication or division.  Here we calculate 8-9, obtaining -1, and 9+3, obtaining 12.  Then we have:

(-1) - (12)*5.  We must multiply here before subtracting:  -60 - 1 = -61.

b)  5+(5+5+6)+9    Do the addition inside parentheses first, obtaining:

5+(16)+9.  Now add up 5, 16 and 9:    30.

c) (5/3-3)    Do the division first, obtaining 5/3, and then subtract 3 (or, using the LCD, subtract 9/3):  5/3 - 9/3 = -4/3

d) 2*3+(4*2)/2  Do the multiplication first:  6 + (8)/2

Next, do the division:  6 + (4) = 10

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djverab [1.8K]

Answer:

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Step-by-step explanation:

When you see two negative signs directly next to each other (as shown in the given expression), it will become a positive sign:

7 - (-4) = 7 + 4 = 11

Positive is your answer.

* To be fair, even if there is only one negative sign, the answer will still be positive, however, I am assuming you are suggesting only the sign, and not the answer.

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7 0
3 years ago
A store sells 4 cans of nuts for $7. How much would it cost you to buy 7 cans of nuts?
maksim [4K]

Answer:

12.25

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Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
1) A family consisting of three persons—A, B, and C—goes to a medical clinic that always has a doctor at each of stations 1, 2,
crimeas [40]

Answer:

Step-by-step explanation:

Let us record the station number 1, 2 or 3 for each family member A, B or C.

I am attaching a table containing total outcomes. Outcomes are presented along rows while the assigned station to each member is written along columns. For ease of understanding, 1 3 2 in the table should be interpreted as family member A being assigned to station 1, member B to station 3 and member C to station number 2, respectively.

From table it is clear that the total outcomes possible are 27.

We know that, probability can be defined as,

PROBABITILY = \frac{NUMBER\;OF\;DESIRED\;OUTCOMES}{TOTAL\;NUMBER\;OF\;OUTCOMES}

a) All Members Assigned to the Same Station.

Cases for all members being assigned to same station are as follows:

[1 1 1], [2 2 2], [3 3 3] (outcome number 1, 14 and 27 in the table).

Therefore,

PROBABILITY\;(Case\;a) = \frac{3}{27}\\\\PROBABILITY\;(Case\;a) = 0.111

b) At Most Two Members Assigned to the Same Station.

It means that maximum of 2 members can have the same station. Cases for this situation are as follows:

[1 1 2], [1 1 3], [1 2 1], [1 2 2], [1 3 1], [1 3 3], [2 1 1], [2 1 2], [2 2 1], [2 2 3], [2 3 2],

[2 3 3], [3 1 1], [3 1 3], [3 2 2], [3 2 3], [3 3 1], [3 3 2]

(outcome number 2, 3, 4, 5, 7, 9, 10, 11, 13, 15, 17, 18, 19, 21, 23, 24, 25 and 26 in the table).

Therefore,

PROBABILITY\;(Case\;b) = \frac{18}{27}\\\\PROBABILITY\;(Case\;b) = 0.666

c) All Members Assigned to a Different Station.

For this scenario, we have the following results:

[1 2 3], [1 3 2], [2 1 3], [2 3 1], [3 1 2], [3 2 1] (outcome number 6, 8, 12, 16, 20 and 22 in the table).

Therefore,

PROBABILITY\;(Case\;c) = \frac{6}{27}\\\\PROBABILITY\;(Case\;c) = 0.222

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Answer:

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Step-by-step explanation:

Apply the exponent rule.

7^8=7^{x+8} \\

If a^{f(x)} = a^{g(x)}  then f(x) = g(x)

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x = 0

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3 years ago
Which function does NOT represent exponential growth?
Harrizon [31]
Is this multiple choice?

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