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3 years ago

Help me please I don’t understand

Mathematics

1 answer:

nevsk [136]3 years ago

6 0

Answer:

Easy, 80

Step-by-step explanation:

480 divided by 6=80.

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The larger of two consecutive odd integers is four less than three times the smallest integer. Find the two integers.

ElenaW [278]

Answer: -1 and 1

Step-by-step explanation:

Let the first integer be x and the second x +2 , clearly, the larger is x + 2.

From the statement given

x + 2 = 3x + 4

x - 3x = 4 - 2

-2x = 2

x = -1

The second integer is -1 + 2 = 1

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4 years ago

Are these ratios equivalent?

Rainbow [258]

Yes they are the both equal 5.25 when divided

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3 years ago

Pre algebra Simplify 32 ⋅ 35.

aksik [14]

32x35=1,120
To solve this equation, all you have to do is put the two numbers in a calculator connected by multiplication sign,

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4 years ago

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

To decorate the bulletin board,Wanda cut a length of ribbon into 7 equal sections,with a 16.2- inch piece of ribbon left over.Th

KIM [24]

Part A Equation and Solve: (16.2x7) Answer: 113.4

Part B Ribbon: 113.4 x4

Part C Combining: 340.2

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3 years ago