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DiKsa [7]
3 years ago
5

Can you please help me solve thanks step by step

Mathematics
2 answers:
shusha [124]3 years ago
6 0

Answer:

40 degrees

Step-by-step explanation:

We know the entire angle of ABD is 70 and CBD and ABC are in it.

Since we know one of them (CBD) is 30, we can subtract 30 from 70 to find ABC. This is because the angle of ABC and CBD equal ABD.

30 + x = 70

-30 from both sides

x = 40

Deffense [45]3 years ago
5 0
Angle ABC = 40

Explanation:
ABC = ABD - CBD
ABC = 70 - 30 = 40
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Answer:

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Step-by-step explanation:

The question is asking you to solve ...

   y = f(x)

for x. (In other words, find the inverse function.)

You already did this using a constant for y. Do the same thing with y instead of the constant.

  y = 4(1.0256^x)

  y/4 = 1.0256^x . . . . . . . divide by 4

  log(y/4) = x·log(1.0256) . . . . . take logs

  log(y/4)/log(1.0256) = x . . . . . divide by the coefficient of x

Now, you have a model for x in terms of y, which is what the question is asking for.

  x = log(y/4)/log(1.0256) . . . . . . . exact expression

When y=12, this is ...

  x = log(12/4)/log(1.0256) ≈ 43.46 . . . . weeks

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This is a linear equation in log(y), so can be written as such:

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6 0
3 years ago
Suppose a college student pays $500 for tuition fees. However, she also has to pay $250 for her textbooks (ouch!). What percent
Dominik [7]
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Marysya12 [62]

Step-by-step explanation:

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Work attached. Hope this helped! :)

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3 years ago
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Paladinen [302]

Answer:

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