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givi [52]
3 years ago
12

Show all of your work. solve this system by ELIMINATION! this is most of my grade please help if you know!

Mathematics
1 answer:
Andreyy893 years ago
7 0
If my handwriting sucks; (-2x+7y=3
3x-7y=-1)
=
(7y=3+2x
3x-7y=-1)= 2

3x2-7y=-1=1

Answer: (x,y) = (2,1)

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Without solving the equation -3x+5 =44 tell whether the value of x is negative or positive
marshall27 [118]

Answer:

x= -13

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Step-by-step explanation:

3 0
3 years ago
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y = -16x2 + 32x - 10 This parabola has x-intercepts, representing the times when the dolphin's height above water is feet.
Lina20 [59]
Answer: This parabola has 0.3875 x-intercepts,
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0 feet.

The x-intercept is the point where the graph crosses the x-axis, which is when the value is y=0. 
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-b +-√(b^2-4ac)  /2a=
-16 +-√(16^2-4(-8)(-5))  /2(-8) =
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6 0
3 years ago
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Which statement best explains the importance of examining multiple perspectives about an event?
belka [17]

Answer:

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3 0
2 years ago
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rewona [7]
Y/8 simplified maybe
8 0
3 years ago
A recipe that makes eight Jamberma muffins calls for 1 1/2 teaspoons of baking powder how much baking powder is needed to make t
dimulka [17.4K]
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this is a proportion, so we cross multiply
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8x = 3/2 * 36
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x = 54/8
x = 6 3/4 <=== 6 3/4 tsps are needed to make 3 doz muffins
5 0
3 years ago
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