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igomit [66]
3 years ago
15

standard cars have 4wheels and standard semitrucks have 18 wheels. if only cars and semitrucks are parked in certain lot, the to

tals number of wheels can be expressed by w=4c+18t. How can this equation be solved for c?
Mathematics
1 answer:
pogonyaev3 years ago
5 0
 i think that it is....... c= (W - 18t)/4
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Need some help working these out
s2008m [1.1K]

Answers:

  • Problem 1)  40 degrees
  • Problem 2) 84 degrees
  • Problem 3) 110 degrees

===============================================

Explanation:

For these questions, we'll use the inscribed angle theorem. This says that the inscribed angle is half the measure of the arc it cuts off. An inscribed angle is one where the vertex of the angle lies on the circle, as problem 1 indicates.

For problem 1, the arc measure is 80 degrees, so half that is 40. This is the measure of the unknown inscribed angle.

Problem 2 will have us work in reverse to double the inscribed angle 42 to get 84.

-------------------

For problem 3, we need to determine angle DEP. But first, we'll need Thales Theorem which is a special case of the inscribed angle theorem. This theorem states that if you have a semicircle, then any inscribed angle will always be 90 degrees. This is a handy way to form 90 degree angles if all you have is a compass and straightedge.

This all means that angle DEF is a right angle and 90 degrees.

So,

(angle DEP) + (angle PEF) = angle DEF

(angle DEP) + (35) = 90

angle DEP = 90 - 35

angle DEP = 55

The inscribed angle DEP cuts off the arc we want to find. Using the inscribed angle theorem, we double 55 to get 110 which is the measure of minor arc FD.

3 0
3 years ago
A rectangular courtyard has a length of 24 m and a width of 15 m. Find the perimeter of the rectangle defined by this courtyard.
pav-90 [236]

Answer: 78

Step-by-step explanation:

2(l · w)

2(24·15)

78

5 0
2 years ago
Please show me how to do this step by step, I’m confused…
wel
Here is the answer in exact form or decimal form.

6 0
2 years ago
The figure below shows three uniform objects: a rod with m1 = 7.00 kg, a right triangle with m2 = 3.70 kg, and a square with m3
navik [9.2K]
The answer is 

G = [m1(veca1a2) + m2 (veca3a4) + m3veca5a6)] /  (m1 + m2  + m3) 

G= m1x5 + m2 x 4sqrt (2) + m3x 3sqrt (2)  / 16  =  35 +4 x 3.7x sqrt (2) + 5.3 x3 4sqrt (2) / 16 =35 + 36<span> sqrt (2) / 16
G = 53.09
LOOK AT THE IMAGE

</span>

6 0
3 years ago
I can't find the value of Y​
Lubov Fominskaja [6]

114 = 19y

This is true because they are vertical angles. Now, let's divide both sides by 19

6 = y

5 0
2 years ago
Read 2 more answers
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