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stiv31 [10]
3 years ago
15

Number 8.... really confused.

Mathematics
2 answers:
zhenek [66]3 years ago
7 0
I'll go with D or B on this one,sadly,I dont have an explination on why,but that should be it.
jolli1 [7]3 years ago
6 0
Ohhhhhhhhhhh i get it its A 
\
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Please tell me what 1+1 is ??????
Luden [163]
It is 2...hope it helps! 
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3 years ago
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Please ASAP<br> Add: 1234 + 202
Oliga [24]

1234 + 202 =  1,436

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PLEASE HELP GIVING MANY POINTS!
NeTakaya

Answer:

  69.01 m

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you ...

  Tan = Opposite/Adjacent

The tangent function is useful for problems like this. Let the height of the spire be represented by h. The distance (d) across the plaza from the first surveyor satisfies the relation ...

  tan(50°) = (h -1.65)/d

Rearranging to solve for d, we have ...

  d = (h -1.65)/tan(50°)

The distance across the plaza from the second surveyor satisfies the relation ...

  tan(30°) = (101.65 -h)/d

Rearranging this, we have ...

  d = (101.65 -h)/tan(30°)

Equating these expressions for d, we can solve for h.

  (h -1.65)/tan(50°) = (101.65 -h)/tan(30°)

  h(1/tan(50°) +1/tan(30°)) = 101.65/tan(30°) +1.65/tan(50°)

We can divide by the coefficient of h and simplify to get ...

  h = (101.65·tan(50°) +1.65·tan(30°))/(tan(30°) +tan(50°))

  h ≈ 69.0148 ≈ 69.01 . . . . meters

The tip of the spire is 69.01 m above the plaza.

3 0
3 years ago
Evaluate [7 - (2 - 5(4 - 2) + 7)] + 2
motikmotik
You are correct. here it is step by step.

[7-(2-5(2)+7)] +2
[7-(2-10+7)]+2
[7-(-1)]+2
8+2
10
7 0
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pentagon [3]

Answer:

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Step-by-step explanation:

For $39.10=23 chicken wings

For $1=23/39.10 chicken wings

For $32.30=23/39.10 x 32.30= 19 chicken wings

7 0
2 years ago
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