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dmitriy555 [2]
3 years ago
10

I need to know how to solve each system by graphing

Mathematics
1 answer:
svet-max [94.6K]3 years ago
8 0
For the first equation, go to the y-intercept which is 3 on the y-axis, (0,3). Go up 5 units from that point then go 3 units left. For the second equation start at the point (0,-3) and from that point go up 1 unit then to the right 3 units. Where the two lines intersect is the answer.
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What is the simplified form of (−7x3 + 5x2 − x + 6) − (−8x3 + x2 + 3)?
professor190 [17]

Answer:

B. x3 + 4x2 − x + 3

Step-by-step explanation:

(−7x^3 + 5x^2 − x + 6) − (−8x^3 + x^2 + 3)

Distribute the negative sign

(−7x^3 + 5x^2 − x + 6) + (8x^3 - x^2 - 3)

I like to line them up vertically.

−7x^3 + 5x^2 − x + 6

8x^3 - x^2           - 3

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

x^3    +4x^2  -x  +3

4 0
4 years ago
Hand lotion origninally cost $3.00 for 16-ounce. This week the lotion is on sale $2.40 for 16-ounce. What is the percent decreas
pshichka [43]

Answer:

20%

Step-by-step explanation:

To find out the percent decrease of the price of the lotion, the first step is to get the amount of the decrease in price.

The lotion is normally $3.00 for the bottle.

This week, it's at $2.40 for the same bottle.

The difference is then of $0.60 per bottle.

Now, we take that $0.60 and we divide it by the original price of $3, we get:

$0.60 / $3.00 = 0.20  

So the special is a reduction of 20% from the original price of $3.00 per bottle.

6 0
3 years ago
What would rate be equal to?
elena55 [62]

Answer:

Step-by-step explanation:

Average rate equals the negative of delta concentration of reactants

3 0
3 years ago
1/2 of a bag of candy is skittles, 1/4 is m and m's, and 3/4 of the rest of it are life savers. The rest are sour patch kids. Wh
m_a_m_a [10]

Answer:

6.25%

Step-by-step explanation:

Total = 1 ; as a decimal

1/2 = skittles

1/4 = M&Ms

Skittles +M&Ms = 1/2 + 1/4 = 3/4

Remainder = 1 - \frac{3}{4}

Remainder = \frac{1}{4}

Sour patch = \frac{1}{4} *\frac{1}{4} =\frac{1}{16}

As a percentage , multiply 1/16 by 100 and it becomes 6.25%

5 0
4 years ago
What is the first step to solve this equation:<br><br> 11 - 3x = 44
vichka [17]

Answer:

Add 3x to both sides

Step-by-step explanation:

after you add 3x you get 11=3x+44

next you subtract 44 from each side

you then get -33=3x then you divide by 3 on both sides and your final answer is x= -11

7 0
3 years ago
Read 2 more answers
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