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joja [24]
3 years ago
12

In (r,theta), the value of theta can be negative.True or False

Mathematics
1 answer:
Marizza181 [45]3 years ago
5 0

(r,theta) represents polar coordinate .

And in (r,theta), there is neither any restriction on r nor on theta. It means both r and theta can either be positive or negative .

For e.g. (2,30 degree), (2,-30 degree) both are correct .

So the given statement is true .

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A tip in a restaurant has been typically figured at​ 15% of the total bill.
Anastasy [175]

Answer:

4.5 dollars (before tax id assume)

5 0
3 years ago
Is it a function and what is the Domain and the Range
Schach [20]

Answer:

a-is a function

the domain is:[-3,1]

the range is :[-4,0]

b- is not a function

7 0
3 years ago
Read 2 more answers
If the largest angle of a triangle is 120° and it is included between sides of 1.5 and 0.5, then (to the nearest tenth) the larg
12345 [234]

Answer:

1.8 units.

Step-by-step explanation:

The questions which involve calculating the angles and the sides of a triangle either require the sine rule or the cosine rule. In this question, the two sides that are given are adjacent to each other and the given angle is the included angle. This means that the angle is formed by the intersection of the two lines. Therefore, cosine rule will be used to calculate the length of the largest side of the triangle. The cosine rule is:

b^2 = a^2 + c^2 - 2*a*c*cos(B).

The question specifies that a=0.5, B=120°, and c=1.5. Plugging in the values:

b^2 = 0.5^2 + 1.5^2 - 2(0.5)(1.5)*cos(120°).

Simplifying gives:

b^2 = 3.25.

Taking square root on the both sides gives b = 1.8 (rounded to the nearest tenth).

This means that the length of the third side is 1.8 units!!!

3 0
3 years ago
What is the value of fraction 1 over 2x3 + 5.2y when x = 2 and y = 3?
mihalych1998 [28]
I think is 1/27.6 because 2x equals 4 and times 3 equals 12. 5.2y equals 15.6. Then 15.6 plus 12 equals 27.6.
4 0
3 years ago
Which construction must you do to construct a triangle given the lengths of two sides and the measure of the angle between the t
Marina86 [1]
The goal is to construct a triangle. If you choose A) you will only have two lines connecting, with an angle of 90°. If you choose B) you cannot have a triangle also with 2 lines only. Neither D). So choose C) construct an angle congruent to a given one-- connect the lines and produce a perfect triangle.
5 0
3 years ago
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