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RideAnS [48]
3 years ago
10

tadarius mother is concerned about the amount of water she uses to wash clothes. she washes 7 loads of clothes each week for her

family of 6. every time she washes a load, she uses 26 gal of water how water does she use to wash 7 loads of clothes each week?
Mathematics
1 answer:
zzz [600]3 years ago
8 0
182 gallons of water you're just multiplying 26x7
 
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At what angle does a diffraction grating produce a second-order maximum for light having a first-order maximum at 20.0 degrees?
hichkok12 [17]

Answer:

At 43.2°.

Step-by-step explanation:

To find the angle we need to use the following equation:

d*sin(\theta) = m\lambda

Where:

d: is the separation of the grating

m: is the order of the maximum

λ: is the wavelength

θ: is the angle              

At the first-order maximum (m=1) at 20.0 degrees we have:

\frac{\lambda}{d} = \frac{sin(\theta)}{m} = \frac{sin(20.0)}{1} = 0.342

Now, to produce a second-order maximum (m=2) the angle must be:

sin(\theta) = \frac{\lambda}{d}*m

\theta = arcsin(\frac{\lambda}{d}*m) = arcsin(0.342*2) = 43.2 ^{\circ}

Therefore, the diffraction grating will produce a second-order maximum for the light at 43.2°.    

I hope it helps you!                                                        

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3 years ago
2y+7z-2z+4y+8+y+2 Combine Like Terms
Andrew [12]

Answer:

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Step-by-step explanation:

7y+5z+10

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Step-by-step explanation:

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54 ÷ 6 x (12-4) + 2 =​
Aleksandr-060686 [28]

Answer:

3

Step-by-step explanation:

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2. (12-4)=8

3. 9-8 = 1

4. 1+2 = 3

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Step-by-step explanation:

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