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adell [148]
3 years ago
11

Please help me if you can​

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
7 0

Answer:

1)-9x^5 + 7x^2 + 3    2)  -2x2 • (x - 7)      3)  -23v^2 + 7v + 4    4) is just 7x

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Help due in 15min
Sophie [7]

Answer:

The last lines are the final answers, if you need a deeper explanation let me know but I wanted to make sure you understood and got it in time.

Step-by-step explanation:

2(x+4)-3(y+2x)

2x+8-3y-6x

-4x-3y+8

2d+3(4d+2k)-3k

2d+12d+6k-3k

14d+3k

5(4m-2r+7)+4m+3r

20m-10r+35+4m+3r

24m-7r+35

I hope I didn't get anything wrong in a hurry!

4 0
3 years ago
2x=-y in standard form
IgorC [24]

Answer:

y=-2x

Step-by-step explanation:

4 0
3 years ago
What 4 factors were used to create this Product game board 9,15,18,21,30,35,36,42,49
slava [35]
Check : brainly.com/question/5023362 



To see what are the factors use, we write each of the numbers, as product of prime factors, as shown in the picture



As we can see, the 4 factors used to produce the numbers in the list are {2, 3, 5, 7}


Answer:  {2, 3, 5, 7}

6 0
3 years ago
Read 2 more answers
Suppose a car travels at a rate of 60 miles per hour for 3 hours. How many miles does the car travel?
nataly862011 [7]
Ok lol I was going to put 180 but if you got it than that’s fine.
3 0
3 years ago
An ice cream store sells 27 flavors of ice cream. Determine the number of 6 dip sundaes.
xz_007 [3.2K]

Answer:

 \large\boxed{\large\boxed{2.428678219969\times 10^{15}}}

Explanation:

It is said that the <em>order is not considered</em>, meaning that the order does not matter. For instance, ABCDEF is equal to any combination of those same letters.

Thus, this problem deals with combinations, whose formula is:

          C(m,n)=\dfrac{m!}{n!\cdot (m-n)!}

For <em>27 flavors of ice cream</em> and <em>6 dip sundaes</em>, m = 27 and n = 6:

        C(27,6)=\dfrac{27!}{6!\cdot (27-6)!}=\dfrac{27!}{6!\cdot 13!}=2.428678219969\times 10^{15}

7 0
4 years ago
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