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Nata [24]
3 years ago
9

Please help me i need to do this fast

Mathematics
1 answer:
andrezito [222]3 years ago
3 0

It would be answer A since moving it right from the axis makes the x part include a negative next to the number that's being shifted from the axis, and when reflecting it across the x-axis, the number outside of the parenthesis becomes negative

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4) A window is in the form of a rectangle surmounted by a semicircle. The rectangle is of clear glass, whereas the semicircle is
lisov135 [29]

Answer:

l=0.1401P\\

w =0.2801P

where P = perimeter

Step-by-step explanation:

Given that a window is in the form of a rectangle surmounted by a semicircle.

Perimeter of window =2l+\pid/2+w

P= 2l+3.14 (w/2)+w

Or P = 2l+2.57w\\l = \frac{P-2.57w}{2}

To allow maximum light we must have maximum area

Area = area of rectangle + area of semi circle where rectangle width = diameter of semi circle

A=lw +\pi \frac{w^2}{8}

A=lw +\pi \frac{w^2}{8}\\A=w*\frac{P-2.57w}{2}+0.3925w^2\\2A= Pw-2.57w^2+(0.785w^2)\\2A' = P-5.14w+1.57 w\\2A" =-5.14+1.57

Hence we get maximum area when i derivative is 0

i.e. P-5.14w+1.57 w=0\\3.57w =P\\w = \frac{P}{3.57} =0.2801P

l = \frac{P-2.57w}{2}\\l = 0.1401P

Dimensions can be

l=0.1401P\\w =0.2801P

5 0
3 years ago
PLEASE HELP I HAVE 20 MINS TO TURN THIS IN AND I HAVE 3 QUESTIONS LEFT:
dlinn [17]
The answer is 360 miles since he can drive 60 miles per hour so just multiply 60x6 and your answer is 360
3 0
2 years ago
Read 2 more answers
Please answer these 5 questions
swat32

1. seven and fifty-five hundredths

2. two and seven hundredths

3. four and five hundredths

4. two and eighty-six hundredths

5. nine and eighteen hundredths

6. one and ninety hundredths or one and nine tenths

5 0
3 years ago
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Write 7/25 as a decimal show your work
ira [324]

Answer:

0.28 is a decimal and 28/100 or 28% is the percentage for 7/25.

Step-by-step explanation:

i needhelp one more little crown plzz

25x4=100

7x4=28

28/100

0.28

28%

4 0
3 years ago
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2. Derek is an HVAC technician. He worked 30 hours and made $600. How much per hour does Derek make?
Cloud [144]

Answer:

$20.00

Step-by-step explanation:

600 ÷ 30 = 20

5 0
2 years ago
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