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Akimi4 [234]
3 years ago
6

Help me don’t respond if you aren’t 100% sure please please

Mathematics
1 answer:
WINSTONCH [101]3 years ago
8 0

it is 8/15 because if you count all the groups it is 15 and if you count all the numbers 1 it is 8 which is 8/15

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The wavelength of violet light is 4.0 x 10^−7 m. The wavelength of red light is 6.5 x 10^−7 m. How much longer is the wavelength
AnnyKZ [126]

Answer:

A 2.5 × 10^–7 m

Step-by-step explanation:

Given

wavelength of violet light = 4.0 x 10^−7 m.

The wavelength of red light = 6.5 x 10^−7 m

To find the how much longer is wavelength of red light than violet light we have to find difference of wavelength of red and violet light

Difference in  wavelength of red light and violet light =

wavelength of red light -wavelength of violet light

                         = 6.5 x 10^−7 m - 4.0 x 10^−7 m

Difference in  wavelength of red light and violet light = (6.5 - 4.0)*10^−7 m

Difference in  wavelength of red light and violet light =2.5 x 10^−7 m

Thus,

wavelength of red light is 2.5 x 10^−7 m longer than wavelength of violet light

option A

8 0
2 years ago
A. 10<br> B. 29<br> C. 8<br> D. 25
Sonja [21]

Answer:

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7 0
2 years ago
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Please answer^^ I will give you brainlist!<br> Yes 5th grade math :clown face:
GrogVix [38]

Answer:

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3 years ago
What's the dot product of u = &lt;-9, 4&gt; and v = &lt;1,3&gt;? Thanks!
Leno4ka [110]
\langle-9,4\rangle\cdot\langle1,3\rangle=(-9)(1)+(4)(3)=-9-12=-21
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sdas [7]

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25.4 students in each class

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178/7 = 25.4285714286 rounded up to 25.4

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