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Lena [83]
3 years ago
6

Angle B = ? Need help.

Mathematics
1 answer:
zaharov [31]3 years ago
5 0

Answer:

angle B = 33.42

Step-by-step explanation:

take angle B as reference angle

using tan rule

tan B = opposite/adjacent

tan B = 6/9

tan B = 0.66

B = tan^{-1} (0.66)

B = 33.424

B = 33.42

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A leprechaun places a magic penny under a​ girl's pillow. The next night there are 2 magic pennies under her pillow. Each night
11Alexandr11 [23.1K]

Answer:

  • tn = 2097152 pennies
  • tn = 20971.52 dollars.

Step-by-step explanation:

A surprisingly large amount of money.

The question is "Does the amount of money just double or do the previous amounts add to the present amount?"

I think it just doubles. Not only that, but she can't spend any of it until night 22 is reached.

  • tn = a*2^(n - 1)
  • a = 1   She starts with 1 penny.
  • n = 22
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8 0
3 years ago
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Answer:

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4 0
3 years ago
Solve the inequality and show your solution on a number line: −4x≥−1
kiruha [24]

<em>*To solve an inequality, it's the same as solving an equation; isolate the variable to one side.</em>

For this, all you need to do is divide both sides by -4. And since we are dividing by a <u>negative</u>, flip the inequality sign and your inequality is x\leq\frac{1}{4}

Now to graph this. Since x can be "equal to" 1/4 ( ≤ = less than or equal to), you will have a <u>closed circle on 1/4.</u> And since x can also be "less than" 1/4, <u>the arrow will be going to the left of 1/4.</u>

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The graph is shifted 7 units right and 5 units up.

5 0
3 years ago
Help with algebra pls help
EastWind [94]

9514 1404 393

Answer:

  a. 1.48 seconds

Step-by-step explanation:

You want to find the larger value of t such that h(t) = 10.

  -16t^2 +25t +8 = 10

  16t^2 -25t +2 = 0 . . . . subtract the left side to get standard form

Using the quadratic formula, we find the values of t to be ...

  t = (-(-25) ± √((-25)^2 -4(16)(2)))/(2(16)) = (25±√497)/32

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The ball goes in the hoop about 1.48 seconds after it is thrown.

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<em>Additional comment</em>

The quadratic formula tells us the solution to ...

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is given by ...

  x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

Here, we have a=16, b=-25, c=2. Of course, our variable is t, not x, but the relation is the same.

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