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3 years ago

Rhonda deposited $3000 in an account in the Merrick National Bank, earning 4.2% interest,

Mathematics

2 answers:

jolli1 [7]3 years ago

8 0

The equation would be (3000x.042x1) thats how much interest she earns, then add that a,ount to 3000

topjm [15]3 years ago

4 0

You would use the equation a(1+/-%)^t. The a is the amount of the 3000. The percent goes there but you have to put it in decimal form so if you have to round to a specific spot then round to that spot. The t is the time so you would actually write it as: 3000(1+0.042)^t=B

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Which equation has the same soultions as x^2+6×-7=0

blagie [28]

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2 years ago

Calculate the axis of symmetry in the equation Y = (x+1) (x-4)

algol [13]

Answer:

Every parabola has a turning point called the axis of symmetry,so for this question you just have to find the turning points

x turning point= -b/2a,and the y turning point is gotten by replacing the value of x in the equation

y=(x+1)(x-4)

=x^2-3x-4

a is 1,b is -3 and c is -4

x= -(-3)/2(1)

=1.5

and y=x^2-3x-4

=1.5^2-3(1.5)-4

= -6.25

therefore the axis of symmetry is (1.5,-6.25)

I hope this helps

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2 years ago

I need help with this question?

babymother [125]

The correct answer is C.

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3 years ago

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Sati [7]

Answer:

a. has one solution

b. infinite solution

Step-by-step explanation:

2(x - 1) + 6 = 4x - 22

2x - 2 + 6 = 4x - 22

2x - 4x = 2 - 6 - 22

-2x = -26

x = 26/2

x = 13

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12x + 6 - 2 = 12x + 4

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0 = 0

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Taya2010 [7]

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49/4 - 18/5 =
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3 years ago