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kolezko [41]
3 years ago
8

I need help with these! Thanks!!

Mathematics
1 answer:
spin [16.1K]3 years ago
8 0
-2[9 - (x + 7)]
-2[9 - x - 7]
-2[-x + 9 - 7]
-2[-x + 2]
-2[-x] - 2[2]
2x - 4

The answer is C.
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Calculate the gross pay per paycheck for C. D. Edgeling, who makes an annual salary of $30,000 and is paid biweekly.?
son4ous [18]
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4 0
3 years ago
A beach toy in the shape of a pyramid has a rectangular base with dimensions of 4 inches by 12 inches. The height of the rectang
Alexxandr [17]

Answer:

80in3

Step-by-step explanation:

12 x 4 = 48

48 / 2 = 24

24 x 10 =240

240 / 3 = 80

So your answer is 80in3

7 0
2 years ago
(2 + 3x)<br> 62<br> I need help my brother beats me up cause I don’t know jdjdjefjdjjdfjjddjjffjfj
Triss [41]

Answer:

x=20

Step-by-step explanation:

I hope this helps. Sorry if i'm wrong.

3 0
3 years ago
Find the determinant of the matrix.
Jobisdone [24]

Answer:

-276

Step-by-step explanation:

We'll use the method of cofactors.  Use the coefficient +6 for

9   2

8   10

This gives you one third of the solution:  6 {(9)·(10) - (8)(2) },  or 444.

Next, use the coefficient 9, taking care to change the sign to -9  as follows:

     9   1

-9 |           |     =   -9(90 - 8) = -9(82) = -738  

      8  10

Finally with +2 as y our coefficient, evaluate the cofactor

9  1

9  2

ending up with  

+2(18-9) = +2(9) = 18

Finally add these three results together:

+444 - 738 + 18  =  -276

This, the determinant, D, is -276 (the fourth answer choice)

5 0
3 years ago
Please help please please
Ksju [112]
∩ stands for the intersection of the two arrays think a venn diagram in this it would be three

<span>∪ stands for objects that belong to either set
</span>
It would be A <span>∪ B because that set shows objects from both sets

If i'm wrong sorry its been a while since I've practiced or learned it</span>
8 0
4 years ago
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