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atroni [7]
4 years ago
11

Using the law of Sines, in triangle ABC, is angle C=145 degrees, b=7, c=33, what is angle B

Mathematics
1 answer:
sergij07 [2.7K]4 years ago
6 0
By law of Sines:

c / sinC = b / sinB
33 / sin145 = 7 / sinB
sinB = sin145 * 7 / 33
sinB = 0.122
B = 6.99
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(-14+3i)-(14i) = ?<br> Express your answer in the form<br> (a + bi).
gayaneshka [121]

Answer:

-14 - 11i

Step-by-step explanation:

You may be learning about the imaginary number, i. Even though i is actually the squareroot of -1, when you are doing algebra with it, it acts just like a variable does. The special thing to remember about i is that i^2 is -1. But we don't even need that right now for this problem.

(-14 + 3i) - (14i)

= -14 + 3i - 14i

Combine the i's

= -14 - 11i

That's it. The -14 is the a, and the -11 is the b in a+bi.

If necessary to fill in a computer answer that is already formatted with a plus, like:

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then use -14 for a and -11 for b.

6 0
2 years ago
How many solutions does this system of equations have y=2x y=x^2+2
finlep [7]

The resulting equation has a leading degree of 2, hence the system of equation will have 2 solutions

<h3>Quadratic equations</h3>

Quadratic equations are equations that has a leading degree of 2. Given the following system of equations

y=2x

y=x^2+2

Equate to have:

2x = x^2+ 2

Equate to zero

x^2 - 2x +2 = 0

Since the resulting equation has a leading degree of 2, hence the system of equation will have 2 solutions

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5 0
2 years ago
2x+3=x-4 <br>what is the solution of this equation?​
irga5000 [103]

Answer:

2x+3=x-4

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8 0
3 years ago
Which of the following describes the sum in terms of p and q?(1 point)
snow_tiger [21]

The description of the summation expression given as p + (-q) is the sum, p + (-q), is the number located a distance, |p|, from , q, in the negative direction.

<h3>How to describe the sum in terms of p and q?</h3>

The summation expression is given as:

p + (-q)

In the above summation expression, we assume that:

p ⇒ Positive number

- q ⇒ Negative number

Having said that:

The expression -q would go in the negative direction if plotted on a number line

This means that the description of the summation expression given as p + (-q) is the sum, p + (-q), is the number located a distance, |p|, from , q, in the negative direction.

Hence, the description of the summation expression given as p + (-q) is the sum, p + (-q), is the number located a distance, |p|, from , q, in the negative direction.

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6 0
2 years ago
Subtract. Use models if needed.<br> (-2x+6)-(13x-16)
qaws [65]
-2x + 6 - 13x + 16
= -15x + 22
4 0
3 years ago
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