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2 years ago

ANSWER TO NUMBER 3 FIRST PERSON GETS BRAINLIEST!!

Mathematics

1 answer:

rusak2 [61]2 years ago

6 0

The correct answer would be B.)

Multiplying -5x-7= 35

Multiplying two negative numbers gives you a positive

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Write in standard form. <br> y=-(x-3)^2+2

erma4kov [3.2K]

Answer:

y=x2+6x+9+2=x2+6x+11

Step-by-step explanation:

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2 years ago

20 POINTS AND BRAINLIEST!!!

irina1246 [14]

Where x is 4 the corresponding y is 5. Your answer is 5.

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2 years ago

2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2=

Tomtit [17]

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Step-by-step explanation:

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1 year ago

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Printing machine A and printing machine B print the same newspaper printout, but machine B prints at half the rate of machine A.

klemol [59]

Answer:

The answer is below

Step-by-step explanation:

Let us assume the rate of printing in machine A is x per hour and the rate for machine B is y. Given that machine B prints at half the rate of machine A, therefore:

y = (1/2)x (1)

Also, both machine produces 200 newspaper printouts, and both operate at different times for a total of 4 hours. Therefore:

200/x + 200/y = 4 (2)

Put y = (1/2)x in equation:

$\frac{200}{x}+\frac{200}{(\frac{1}{2} )x}=4\\ \\ \frac{200}{x}+\frac{400}{x}=4\\\\Multiply\ through\ by\ x:\\\\200+400=4x\\\\4x=600\\\\x=150$

Put x = 150 in equation y:

y=(1/2)150 = 75

Therefore the rate of machine A is 150 newspapers per hour while that of machine B is 75 newspapers per hour

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3 years ago

How to graph f(x)=(x-2)^2+5

tatyana61 [14]

That's a quadratic, a nice parabola in vertex form.

The parabola has a positive x^2 term, so it's a CUP, concave up positive. It will have a minimum at the vertex, which is (2,5). Plot that point.

Now we need a couple of guide points to draw the usual parabola going up from both sides of its vertex. We try x=0 giving (0,9) and see that x=4 also gives 9, (4,9). Plot the parabola through those two points and the vertex and you're done.

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2 years ago

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