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lapo4ka [179]
3 years ago
6

PLEASE HELP!! 20 POINTS

Mathematics
1 answer:
WARRIOR [948]3 years ago
6 0
The answer to the first expression is
-21b + 7bc or (-7b * 3) + (7b * 6)
the answer to the second expression is the second and third option
You might be interested in
10. A 50-ft ladder leans against a building so that the base of the ladder is 15 feet from the
Hunter-Best [27]

By applying the trigonometry ratio, SOH, the angle that the ladder makes with the building is calculated as: 17.5°

<em><u>Recall:</u></em>

  • Trigonometry ratios that can be used to solve a right triangle are: SOH CAH TOA.
  • SOH represents: sin ∅ = Opp/Hyp
  • CAH represents: cos ∅ = Adj/Hyp
  • TOA represents: tan ∅ = Opp/Adj

The diagram attached below depicts the problem given.

∅ = x

Opp = 15 ft

Hyp = 50 ft

  • Thus, applying the trigonometry ratio, SOH, we have:

sin x = 15/50

x = sin^{-1}(15/50)

x = 17.5°

In conclusion, by applying the trigonometry ratio, SOH, the angle that the ladder makes with the building is calculated as: 17.5°

Learn more about trigonometry ratio on:

brainly.com/question/4326804

6 0
2 years ago
Hurry please help me
8_murik_8 [283]
The answer is x=40.
you subtract 80 from 180 to get the sum of y and 60, which is 100. because y doesn’t include the 60 degrees, you subtract 60 from 100.
then, you get 40 for y. because x is a vertical angle of y, you get 40 for x as well since they’re congruent to each other.
7 0
2 years ago
Read 2 more answers
Two trains leave stations 324 miles apart at the same time and travel toward each other. one train travels at 95 mph while the o
Lapatulllka [165]
324/(95+85)=1.8 It will take 1 hour and 48 minutes
7 0
2 years ago
Please help me <br>please please ​
Rom4ik [11]

Answer:

I did it hope you will understand

7 0
3 years ago
How many times around the Earth is 3.7 trillion apples ?<br><br>Show how you worked it out please.
shepuryov [24]
The Earth's circumference is 24,901 miles.
Assuming an apple is 3 inches wide:
3.7 trillion apples is 3/12/5280*3000000000000=142045454.545 miles.
That is 142045454.545/24901=5704.408 times around the Earth.
5 0
2 years ago
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