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kupik [55]
3 years ago
9

solve the following quadratic equation by completing the square. if you need to round to the nearest tenth. x² - 20x = -75

Mathematics
1 answer:
lesantik [10]3 years ago
5 0
The Answer should be either x=15 or x=5 I got both.
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Find the measure of angle 3<br> I WILL GIVE BRAINLIEST TO THE CORRECT ANSWER
Mice21 [21]

Answer:

82°

Step-by-step explanation:

i. 8x +26 = angle 5 (corresponding angles)

ii. angle 5 = -9x + 179 ( vertically opposite angles)

so,

8x+26= -9x +179 (from i and ii)

or, 17x= 153

therefore, x= 9

now,

angle3 + 8x +26= 180° (linear pair)

angle 3 = 180°- 72-26

hence, angle 3= 82°

3 0
3 years ago
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A rectangular garden is 44 feet longer than it is wide. it's perimeter is 328 feet. What s this equation?
Vadim26 [7]
Suppose width is X
then length would be X+44

perimeter of rectangle = 2 (length + width)
substitute:
328 = 2 ( X+44 + X )
328 = 2 ( 2X + 44 )
328 = 4X + 88
328 - 88 = 4X
240 = 4X
240/4 = X
X = 60

substitute in the first and second line
width is X so width = 60 feet
length is X + 44 = 60 + 44 = 104 feet
7 0
3 years ago
Write the equation of the line in slope-intercept form.
aleksklad [387]

Answer:

y = 70x + 20

Step-by-step explanation:

Let me know if I am right

6 0
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Could someone please help me with this​
kicyunya [14]

Answer: i think it would be D

Step-by-step explanation:

7 0
2 years ago
Please help! easy math!
marta [7]

Answer:

y=(0.1)x and y=2(1/4)x represent exponential decay

the rest all are an equation used for exponential growth

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