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Mathematics

1 answer:

OlgaM077 [116]3 years ago

7 0

Answer:

Point on Midline (0,3)

Maximum (9π/2,3)

Minimum (-9π/2,-3)

Step-by-step explanation:

in the given sine function which is in the form of f(x) = a sin(bx+c) +d

a = amplitude

period = frequency = 18π

Therefore b = 2π/18π = 1/9

Y intercept = vertical shift = 3

Horizontal shift = d = 0

Therefore the sine function will be

f(x) = 6 sin(x/9) + 3

Now first point on the midline is (0,3)

Second point is maximum (9π/2,9)

Third point be a minimum value ( -9π/2,-3)

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A man selling computer parts realizes that when

jenyasd209 [6]

The seller must charge a one-time fee:
y=one-time fee
x=profit for each computer part
we would have to compute the following system of equations:
y+16x=$1700
y+56x=$4300

We can solve this system by substitution method

y+16x=$1700 ⇒y=$1700-16x
y+56x=$4300
($1700-16x)+56x=$4300
40x=$4300-$1700
40x=$2600
x=$2600/40
x=$65

we find out the value of "y"

y=$1700-16x
y=$1700-16($65)
y=$1700-$1040
y=$660
if we would sell 30 computers parts the profit would be: 30x+y
profit if the man sells 30 computers parts=30($65)+$660=$2610

answer: his earning will be $2610

7 0

3 years ago

Please hurry. Use the method of completing the square. 2x2+2x+1=0

s344n2d4d5 [400]

Answer

x=-5/2

Step-by-step explanation:

2×2+2x+1=0

4+2x+1=0(2×2=4)

4+1+2x=0

5+2x=0

2x=-5