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Alekssandra [29.7K]
3 years ago
6

Help!!!

Mathematics
2 answers:
AlexFokin [52]3 years ago
3 0

Answer:

D)   -3n - 2

Step-by-step explanation:

-3(1) - 2 = - 5

-3(2) - 2 = - 8

-3(3) - 2 = - 11

-3(4) - 2 = - 14

-3(5) - 2 = - 17

stepan [7]3 years ago
3 0

Answer:

D) -3n - 2

Step-by-step explanation:

Hope this helps

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What's the answer for number 2??
FromTheMoon [43]
Well if there are 3 outcomes just add the two other outcomes and subtract from 1 

so 0.4+0.25=0.35 

so the third outcomes has a 0.35 chance of happening or 35% 
4 0
3 years ago
A) An empty bulldozer weighed 5 8 ⁄10 tons. If it scooped up 7 1 ⁄10 tons of dirt, what would be the combined weight of the bull
irakobra [83]

Answer: 12 9/10 and 10 7/8

Step-by-step explanation:

5 8/10 plus 7 1/10 equals 12 9/10

8 5/8 plus 2 2/8 equals 10 7/8

6 0
3 years ago
Bella and Heather put some money into their money boxes every week. The amount of money (y), in dollars, in their money boxes af
Hatshy [7]

Answer:

\boxed{ \text{B. 10 weeks, \$310 }}\\

Step-by-step explanation:

We have two conditions:

\begin{array}{lrcll}(1) & y & = & 25x + 60 & \\(2) & y & = & 30x + 10 & \\ & 25x + 60 & = & 30 x + 10 & \text {Set (1) = (2)} \\ & 50 & = & 5x & \text{Subtracted 25x from each side} \\& x & = & 10 &\text{Divided each side by 5} \\\end{array}\\$ $\\\boxed{ \textbf{The number of weeks is }x = 10}\\

   

    Bella: y = 25x + 60 = 25(10) + 60 = 250 + 60 = 310  

Heather: y = 30x + 10  = 30(10) +  10 = 300 + 10  = 310

7 0
3 years ago
The manager at a supermarket arranged 10 rows of cans. He put 2 cans in the first row, 4 cans in the second row, and 6 cans in t
Elena-2011 [213]
A)

2, 4, 6, 8, *10

The fifth row contains 10 cans.

----------------------------------------------------

b)

2+4+6+8+10+12+14+16+18+20=110

-----------------------------------------------------

c)
 
2*Row=Number Of Cans

When Row=1, Number Of Cans=2.

When Row=5, Number Of Cans=10.

When Row=10, Number Of Cans=20.
6 0
3 years ago
Find the difference when the polynomial -5x^2+3x+8 is subtracted from the polynomial 2x^2+4x+1.
geniusboy [140]

The difference is 7x^{2}  + 1x-7.

Step-by-step explanation:

Step 1:

The polynomial -5x^{2}+3x+8 is subtracted from the polynomial 2x^{2} + 4x +1.

If we write this as an equation, we get

(2x^{2} + 4x +1) -(-5x^{2}+3x+8).

To subtract the polynomials, we group up the terms based on their variables.

In this subtraction, there are two variables i.e. x^{2} and x and there is one constant term.

Step 2:

The subtraction of the x^{2} variables; 2x^{2}  -(-5x^{2} )  = 2x^{2} +5x^{2} = 7x^{2}.

The subtraction of the x variables; 4x - (3x) = 1x.

The subtraction of the constants; 1-(8) = -7.

So (2x^{2} + 4x +1) -(-5x^{2}+3x+8) = 7x^{2}  + 1x-7.

4 0
3 years ago
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