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tresset_1 [31]
2 years ago
10

Express the product of (6-2i)(-4+3i) in a+bi form

Mathematics
1 answer:
Dafna1 [17]2 years ago
8 0
Multiply through the parentheses:
-24 + 18i + 8i + 6
18 + 26i

18 + 26i is the answer
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Please help me with math please, they are number lines
Novay_Z [31]
So u have to rearrange to find x again
You look at the equation and u can see that if u take away 14 from both sides it will leave u with:
X/-3<-2
Now as x is over - 3, the opposite of divide is multiply, so you multiply both sides by - 3.
This leaves you with your answer:
x<6

So the number line which represents this is C.
3 0
3 years ago
Find the value of w in the pentagon below if the perimeter is 105 meters.
gavmur [86]

Answer: 9 (with a margin of: 0)

Step-by-step explanation:

Times everything by 5

That gives you 15 + 10w = 105.

Subtract 15 from both sides

Divide by 10 to get w by itself

Then you solve

5 0
3 years ago
Write the following as a root in radical form 2^-4/5
erastovalidia [21]

Answer:

Given that:

=2^(-4/5)

This means that 2 is the base and -4/5 is the exponent.

To change it in radical form:

  • firstly the denominator would be written with radical sign
  • Then the negative sign with 4 will be removed by inverting the base.
  • Then the fraction will be simplified according to the exponent (power)
  • All the steps are performed below:

=\sqrt[5]{2^{-4} } \\=\sqrt[5]{1/2^4}\\ =\sqrt[5]{1/16}

i hope it will help you!

6 0
2 years ago
Blue pens come in packages of 2 and black pens come in packages of 5.
PtichkaEL [24]

Answer:

the answer is C, 7

Step-by-step explanation:

it is 7 because 2 doesnt go into 5 evenly so you would have to buy 2 packs of black pens (which would equal 10 black pens)

and then to get 10 blue pens you would have to buy 5 packs because 2x5=10 so 5 blue packs plus 2 black packs (2+5) = 7

your welcome.

5 0
3 years ago
Read 2 more answers
A ladder is leaning against a building and makes 28 degree angle with the ground.
Dominik [7]

To solve this problem you must apply the proccedure shown below:

1- You have that the laddder makes an angle of 28 degrees with the ground and the top of the ladder reaches 35ft.

2- Therefore, you have:

Sin\alpha =\frac{opposite}{hypotenuse}

Where:

opposite=35\\ hypotenuse=length\\ \alpha =28degrees

3-You must substitute values and solve for the lenght, as following:

Sin(28)=\frac{35}{lenght}  \\lenght=\frac{35}{Sin(28)}  \\ lenght=75ft

Therefore, the answer is: 75ft

7 0
3 years ago
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