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spin [16.1K]
4 years ago
12

Simplify (-4-8i)-(-1-3i)

Mathematics
1 answer:
AfilCa [17]4 years ago
8 0
3 - 2i is the answer .
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A muffin recipe calls for 3 times as much flour as sugar. Write a expression that can be used to find the amount of flour needed
raketka [301]

Answer:

3S - F

Step-by-step explanation:

Let Flour be represented with F

Sugar be represented with S

3S = F

3S - F = 0

7 0
3 years ago
Find the value of x in the triangle.
Pani-rosa [81]

Answer:

x=63°

Step-by-step explanation:

The sum of interior angles of a triangle is always equal to 180°

180-55-62=63

3 0
2 years ago
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You and another person are sunbathing on the beach near a lifeguard station. The other person chooses a spot that is the same di
Schach [20]

Answer: 26.8 feet

Step-by-step explanation:

In the figure attached you can see two right triangles  triangle ABD and a triangle ACD.

You are located at point B and the other person at point C.

The approximate height of the lifeguard station is <em>x</em>.

Keep on mind that:

tan\alpha=\frac{opposite}{adjacent}

Therefore:

<em>For the triangle ABD</em>:

tan(36\°)=\frac{x}{DC+11}    [EQUATION 1]

<em>For the triangle ACD:</em>

tan(46\°)=\frac{x}{DC}    [EQUATION 2]

Solve from DC from [EQUATION 2]:

DC=\frac{x}{tan(46\°)}

Substitute into [EQUATION 1] and solve for x:

tan(36\°)=\frac{x}{(\frac{x}{tan(46\°)}+11)}\\tan(36\°)(\frac{x}{tan(46\°)}+11)=x\\11*tan(36\°)=x-\frac{xtan(36\°)}{tan(46\°)}\\7.991=0.298x

x=26.81ft≈26.8ft

7 0
3 years ago
What is the slope of the line shown below?
Harman [31]

Answer:

2

Step-by-step explanation:

Slope is often called rise/run.

This is the amount the line goes upwards, rise, compared to the amount it goes sideways, run.  

Compare the two shown points.  From the left point the the right, the rise is 6, while the run is 3, creating the rise/run of 6/3.  This is simplified to 2.

7 0
3 years ago
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What is the median if the following numbers:10,10,12,14,22,13, and 24
mina [271]

Answer:

14

Step-by-step explanation:

7 0
4 years ago
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