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g100num [7]
3 years ago
5

How many combinations of three books can be selected from 40 books?

Mathematics
1 answer:
earnstyle [38]3 years ago
8 0

Answer:

13

Step-by-step explanation:

You just count by adding 3 every time

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What is the measure of angle 1?<br><br> A. 90<br> B. 45<br> C. Not enough info<br> D. 180
Anettt [7]

Answer:

C ig.

Step-by-step explanation:

well, it's not a right angle (90 degrees), it's not a 45 degree angle, and it's not a straight angle (180 degrees), so it's not enough info

3 0
3 years ago
Read 2 more answers
If each can costs $23.97 plus 6% tax, what is the total cost? Round to two decimal places.
kap26 [50]
The total cost for one can is: $25.41.
__________________________________________________
Let us assume that we want to know the total cost of ONE CAN.
_____________________________________________
To calculate our answer:
_______________________________
$ 23.97 + [ (6/100) * 23.97)] = Our answer, in dollars.
__________________________________________
Note: "6%" = 6/100 = 0.06
_______________________
Rewrite as:
____________
$ 23.97 + [ (6/100) * 23.97)]  = our answer, in dollars; 
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    $ 23.97 + (0.06 * 23.97)

            =    $ 23.97 + 1.4382

            =      $ 25.4082 ; Round to decimal places, to get:
                                         <span>→ $ 25.41
</span>__________________________________________
4 0
3 years ago
What is this answer?
zhannawk [14.2K]

I'm NOT 100% confident in my answers.

Graph 1:

Range: Option B

Graph 2:

Range: Option A

The range has to start at zero since that's the lowest point we can go, only one with zero is first option.

RATE AS BRAINLIEST

8 0
3 years ago
A TV has a listed price of $ 682.98 before tax. If the sales tax rate is 6.25% , find the total cost of the TV with sales tax in
Drupady [299]

Answer:

725.7

Step-by-step explanation:

you multiply 682.98 x 6.25% and get 42.68625

then you add 682.98 + 42.68625 and get 725.66625

then you have to round to the nearest hundredth and get 725.7.

6 0
3 years ago
7x + 2y = 4
Vinil7 [7]

7x + 2(x + 1) = 4 \\ 7x + 2x + 2 = 4 \\ 9x  + 2 = 4 \\ 9x = 2 \\ x =  \frac{2}{9}  \\  \\ y =  \frac{2}{9}  + 1 =  \frac{11}{9}  \\ ( \frac{2}{9}  \:  \frac{11}{9} )
5 0
3 years ago
Read 2 more answers
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