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iris [78.8K]
3 years ago
13

PLEASE HELP !! ILL GIVE BRAINLIEST !

Mathematics
1 answer:
fomenos3 years ago
7 0

Answer:

20 + 0i

Step-by-step explanation:

(10 + 5i) + (10 - 5i) = 20 + 0i

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At a local department store, shirts have been reduced to $30. This price is at 60% of the original price for shirts. Gives this,
grigory [225]

Answer:

75$

Step-by-step explanation:

30 divided by 40 equals 0.75 we do this because 30$ is 40%

then we multiply 0.75 by 100 which equals 75$

each 0.75 is equal to 1%

4 0
4 years ago
Sasha does push-ups each day for five days. The numbers of push-ups she does each day or shown below.
lana [24]

The mean average of push ups Sasha does in 5 days is 26.2.

<h3>Mean average</h3>

  • Number of days = 5
  • Day 1 = 22 push ups
  • Day 2 = 36 push ups
  • Day 3 = 21 push ups
  • Day 4 = 25 push ups
  • Day 5 = 27 push ups

Mean average = Total push ups done / number of days

= (22 + 36 + 21 + 25 + 27) / 5

= 131 / 5

= 26.2

Therefore, the mean average of push ups Sasha does in 5 days is 26.2.

Learn more about mean average:

brainly.com/question/20118982

#SPJ1

3 0
2 years ago
1. Write an equation in slope-intercept form to represent the situation. Leslie joins a cooking club with a one time fee of $55.
mihalych1998 [28]

Answer:

y = 25x + 55

Step-by-step explanation:

7 0
3 years ago
Answer the questions to determine a conditional probability.
maks197457 [2]
Use the form to you know yeah
c
sin
(
b
x
-
c
)
+
d
to find the variables used to find the amplitude, period, phase shift, and vertical shift.
a
=
1
a
=
1
b
=
1
b
=
1
c
=
−
45
c
=
-
45
d
=
0
d
=
0
Find the amplitude
|
a
|
|
a
|
.
Amplitude:
1
1
Find the period using the formula
2
π
|
b
|
2
π
|
b
|
.
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Period:
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3 0
3 years ago
Read 2 more answers
What equation describes the circle that is centered at (8, 3) and has a radius of 9
Sloan [31]

Answer:

<h3> (x-8)²+(y-3)² = 81</h3>

Step-by-step explanation:

The general equation of a circle is expressed as;

(x-a)²+(y-b)² = r² where;

(a, b) is the centre of the circle

r is the radius

Given the centre (8, 3) and the radius of 9, the equation of the circle will be;

(x-a)²+(y-b)² = r²

(x-8)²+(y-3)² = 9²

(x-8)²+(y-3)² = 81

hence the required equation is  (x-8)²+(y-3)² = 81

5 0
3 years ago
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