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Andrei [34K]
4 years ago
12

Can I get help simplifying these three questions? Thanks!

Mathematics
1 answer:
Ludmilka [50]4 years ago
6 0
1. 3a - 1 + 18 - a

So you can reorder these, as long as they keep the sign in front of them.

3a - a - 1 + 18, you can reorder it to.

And then just add or subtract.

2a + 17

2. (a+3) - (a + 2)

First you want to open the parenthesis.

To do that, check the symbol before the parenthesis.

If it's a minus, reverse the operator inside the parenthesis. If it's a plus, do nothing.

So just,

a + 3 - a - 2

Then reorder again

a - a + 3 - 2

1

3. 43 + a - 2a

Just subtract, a - 2a, to get -a.

So,

43 - a
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3 years ago
Which of these is equivalent to 33+77
DENIUS [597]

I thinks it C, this a difficult question but idk, that my closest guess...

4 0
3 years ago
Read 2 more answers
Please help me with this??
Ludmilka [50]

Answer:

c, d and f are rational numbers

Step-by-step explanation:

c) 3\sqrt{5}*2\sqrt{5}=3*2*\sqrt{5*5} = 3*2*5 = 30\\\\\\d)  \dfrac{3\sqrt{5}}{2\sqrt{5}}= \dfrac{3}{2}\\\\\\f)  \dfrac{2\sqrt{5}}{3\sqrt{5}}= \dfrac{2}{5}

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You have decided to stock fewer tomatoes and instead stock more squash. You decided to stock 30 tomatoes each day. About how man
Katyanochek1 [597]

Answer:

2 sales

Step-by-step explanation:

Based on the plot of discrete probability, it can be seen that the distribution is symmetrical and the peak occurs at the stock of 30. If there is a sale of less than 30 such as 20 or 25, the seller is at a loss. Similarly, if the demand is above 30 such as 35 or 40, the seller is also at a loss. Therefore, there is approximately 2 sales to be lost each day based on the decision made by the seller.

7 0
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