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avanturin [10]
3 years ago
11

Can I get some help? I don’t understand this :/

Mathematics
1 answer:
DIA [1.3K]3 years ago
4 0
Together they equal 90 degrees.
Equation:
(0.1x - 22) + (0.3x - 54) = 90
Open parenthesis and simplify:
0.4x -76 = 90
0.4x = 166
DIvide:
Your final answer is x= 415
Hope this helps!
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How to convert 90% into a decimal
Llana [10]

The first thing you  do is go two space forward  like start at the o and move two spaces  forward you put a decimal  at 9 like this 0.90 and that's  how  you  do  it

6 0
3 years ago
Read 2 more answers
Which of the following is a solution of z^5 = 1 + √3 i?
nordsb [41]

Answer:

Option 2 is right

Step-by-step explanation:

Given that

z^5=1+\sqrt{3} i

We can write this in polar form with modulus and radius

|z^5|= \sqrt{1+3} =2\\tan of Angle t =\sqrt{3} \\

Hence angle = 60 degrees and

|z^5|= 2(cos60+isin60)

Since we have got 5 roots for z, we can write 60, 420, 780, etc. with periods of 360

Using Demoivre theorem we get 5th root would be

5th root of 2 multiplied by 1/5 th of 60, 420, 780,....

z= \sqrt[5]{2} (cos12+isin12)\\z=\sqrt[5]{2} (cos84+isin84)\\\\z=\sqrt[5]{2} (cos156+isin156)\\\\z=\sqrt[5]{2} (cos228+isin228)\\\\z=\sqrt[5]{2} (cos300+isin300)\\

Out of these only 2nd option suits our answer

Hence answer is Option 2.

8 0
3 years ago
Find the values of a through e that make these two relations inverses of each other. a = b = c = d = e = An image shows 2 tables
Sergio039 [100]

Answer:

a = -3.8

b = -2.6

c = 1.7

d = 4.4

e = 1.0

Step-by-step explanation:

In the figure attached, the tables are shown.

In an inverse relationship, any point (x,y) in one table is transformed to (y,x) in the other one. For example, in Table A coordinate (1, 2) is present, then in Table B (the inverse), coordinate (2, 1) must be present.

7 0
3 years ago
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I already made an attempt at this question and I would just like to check my answer z = ?
Salsk061 [2.6K]

So we have the equation:

\frac{z+9}{4}=2.1

Then we need to multiply by 4 on both sides to get rid of the denominator on the left:

z+9=8.4

Then we subtract 9 on both sides to solve for z:

z=-0.6

Therefore the answer is z = -0.6.

5 0
3 years ago
I got the answer 27th on the question "Julio wears a blue shirt every 3 days. Larry wears a blue shirt every 4 days. on April 12
aalyn [17]
No, the answer is 24th.
The LCM of 3 and 4 is 12.
(3,6,9,12)(4,8,12)
12th April +12=24th April
5 0
3 years ago
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