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Sonbull [250]
3 years ago
9

Simplify each of the following: 2 1. (3+4i ) + ( 19 - 5i)

Mathematics
1 answer:
ira [324]3 years ago
6 0

I hope this helps you

(3+19)+(4i-5i)

22-i

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Answer this question pls!! (Will give Brainliest)
kvasek [131]
ANSWER:
22
(All you’re doing is plugging in the values into the formula)

4 0
3 years ago
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Given f(x) and g(x) = f(x + k), use the graph to determine the value of k.
dedylja [7]

g(x) is basically transformed f(x). First, let's focus on f(x) graph. Notice how the graph has slope of 1 and intersect y-axis at (0,0).

Which means that our equation for f(x) is:

\large{f(x) = x}

Now then we focus on g(x). g(x) is f(x+k). That means if f(x) = x then f(x+k) would mean substitute x = x+k in the equation.

\large{f(x + k) = x + k }\\  \large{g(x) = x + k}

Next, we want to find the value of k. In the slope-intercept form or y = mx+b where m = slope and b = y-intercept. Notice the g(x) graph and see that the graph intersects y-axis at (0,4). Therefore k = y-intercept = 4.

\large{g(x) = x + 4}

Answer

  • g(x) = x+4
  • Therefore the value of k is 4.
3 0
3 years ago
A ball has a diameter of 8 inches. What is its surface area? (Use 3.14 for pie.) WILL give brainest wh ok answer correct and fas
Ulleksa [173]
4πr2
= 4×π×42
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= 201.06192982975 inches2

The answer should be the last one
4 0
2 years ago
Another not so difficult one, Giving Brainliest and 35 points
KonstantinChe [14]

Answer:

3^{-2}=\frac{1}{3²}=\frac{1}{9}

3 0
2 years ago
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Need help if anybody can help.​
Darina [25.2K]

Answer:

46.5

Step-by-step explanation:

Of all straight angles have 180 degrees in them.

So, to find x we need to form this equation:

x + 65 + x - 22 = 180

2x + 43 = 180

2x = 180-43

2x = 137

68.5 degrees = x

68.5-22 = 46.5 degrees.

m<CBD = 46.5 degrees.

m<GBF = also 46.5 degrees because it is a vertical angle to <46.5 degrees.

8 0
2 years ago
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