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Elan Coil [88]
2 years ago
15

Find the focus of the parabola y = –1/4(x + 3)^2 + 2.

Mathematics
1 answer:
DIA [1.3K]2 years ago
6 0
I think the answer is b or d I hop is helping you
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Noel Devine bought a new dishwasher for $320. He paid 20 down and made 10 monthly payments of $34 what actual yearly interest ra
Nookie1986 [14]
IN finding the interest we need to use the following formula:
 Interest= Principal x Rate x Time  or I= PRT
Substitute values: I= [$20 + ($10 x $34)] -320 =$40
P= $320
R=?
T=10 months/year
I=PRT
Since R is a missing term, we will solve for R using this formula: R=I/PT
R=  [<span>$20 + ($10 x $34)-320] / ($320 x 10 months)
                                          T=10 months</span>÷12 months=0.83<span>
R= ($40)/ $320 X 0.83
R= 40/ 265.6
R=15.06024096</span>
3 0
2 years ago
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Complete the steps in solving the quadratic function 7x – 9 = 7x2 – 49x by completing the square. –9 = 7x2 – x –9 + = 7(x2 – 8x
anzhelika [568]

Answer:

A) 56 . . . . . . the (negative) sum of -7 and -49

b) 112 . . . . . the product of 7 and 16

c) 16 . . . . . . the square of 8/2

8 0
2 years ago
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Caroline, Colin &amp; Sarah share some money.
julia-pushkina [17]

Answer:

2/9

Step-by-step explanation:

After Caroline's share,

1 - 1/9 = 8/9 is left

Sarah gets:

1/(1+3) of 8/9

1/4 × 8/9

2/9

4 0
2 years ago
X-7y=-21<br> 2x - 14y = -42<br> What’s the solution
maxonik [38]

Answer:

Step-by-step explanation:

i tried but i cant succed.

7 0
2 years ago
Tammy is at the dentist's office waiting on her appointment. She notices that the 6-inch-long minute hand is rotating around the
Elena L [17]
PART 1:55-21=35
             35/60=<span>.58333 
             360</span>×<span>.58333 =210 DEGREES
             </span><span>210*pi/180 = 3.665 RADIANS

PART 2: </span><span>(pi) x 2r x .58333 
              </span><span>3.14 x 12 x .58333 = 21.98 in 

PART 3: </span><span>5π inches = 5 x 3.14 = 15.708 inches / 6 in radius = 2.618 radians 

PART 4: </span><span>2.618 radians * 180/pi = 150° </span>
<span>             x coordinate = 6(cos 150°) = -5.196 </span>
<span>             y coordinate = 6(sin 150°) = 3 </span>
<span>             the coordinates would be (-5.196, 2)</span>
7 0
2 years ago
Read 2 more answers
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