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Luden [163]
3 years ago
14

Can someone solve this?

Mathematics
1 answer:
Tomtit [17]3 years ago
8 0

Answer:

  see below

Step-by-step explanation:

1. Semi-circles have an arc/angle measure of 180°.

2. The angle where chords cross is the average of the subtended arcs. Linear angles are supplementary.

3. It is a good idea to be familiar with algebraic manipulation of quadratic equations, including eliminating parentheses and putting in "general form" (answer B). It is also useful to be familiar with squares of integers less than 20.

4. You have run across this before in your other questions. Opposite angles of an inscribed quadrilateral are supplementary. (The opposite arcs are double the angle measures, so sum to 360°.)

5. After the fashion of question 3, fill in the parameters in the circle equation.

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If (5-3i)(x+iy)/(4-5i) = (2+i)^2-(3-4i)^2, then x=___ and y=____
Leona [35]
This looks complicated

lets simplify both sides

By multiplying top and bottom by the conjugate:-

left side  =  (5-3i)(x + iy) (4+5i)          (5-3i)(x + iy) (4+5i) 
                  ------------------------   =      ------------------------
                        (4-5i)(4+5i)                           41

right side =  (2 + i + 3-4)(2+i - 3 + 4i)    (by  Difference of 2 squares)

               =  5-3i)(-1 + 4i)

so as left side = right side

(5-3i)(x+yi)(4+5i)   = 41 (5-3i)(-1+5i)

5-3i is common so:-

(x + iy)(4+5i) = 41(-1+5i)

4x +5xi + 4yi - 5y = -41 + 205i

4x - 5y + (5x + 4y)i = -41 + 205i

EQuating coefficients we are left with the system of equations

4x -  5y = -41
5x + 4y  = 205

solving this gives x = 21 and y = 25


8 0
3 years ago
Write the slope-intercept form of the equation for each line.
Aliun [14]

Answer:

y = x + 2

Step-by-step explanation:

Slope = 1x

y-intercept = 2

y = x + 2

7 0
3 years ago
In baseball, Shintaro had 4 hits in his last 12 times at bat.
ikadub [295]

For this case we can propose a rule of three according to the Shontaro base performance.

4 hits ------------> 12 times at bat

x -------------------> 36 times at bat

Where "x" represents the number of hits he will have the following week, based on his previous performance.

x = \frac {36 * 4} {12}\\x = 12

So, Shintaro will have 12 hits in 36 times at bat

Answer:

Shintaro will have 12 hits in 36 times at bat

OPtion B

3 0
4 years ago
Lara is a 50% partner. She is guaranteed payment of no less than 20,000. The partnership's income before deducting guaranteed pa
enyata [817]

Answer:

Lara's share = 25000

Step-by-step explanation:

Partnership's income = 50,000

Lara's guaranteed payment = 20,000

As the Income 50,000 is larger than Lara's guaranteed payment i.e 20,000. Since Lara is 50% partner so she will receive half the amount of the partnership's income.

Partnership's Income = 50,000  

Half of Partnership's income = 50,000/2

                                                = 25,000

Therefore, Lara's distributive share is 25,000.

!!

8 0
4 years ago
Examples of repeating decimals
Aliun [14]
6.66, with a bar on top of the last two sixes
3 0
4 years ago
Read 2 more answers
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