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7nadin3 [17]
3 years ago
13

(12) — (23 + 13i) = Chc

Mathematics
1 answer:
rewona [7]3 years ago
4 0

Answer:

-11 - 13i.

Step-by-step explanation:

(12) — (23 + 13i)

= 12 - 23 - 13i

= -11 - 13i.

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The first term of an arithmetic sequence is-3 and the 15 term is 53. What is the common difference of the sequence?
Annette [7]
a_2=a_1+d
a_3=a_2+d=a_1+2d
a_4=a_3+d=a_1+3d
...
a_{15}=a_1+14d

Since a_1=-3 and a_{15}=53, the common difference d is

53=-3+14d\implies d=4
6 0
3 years ago
Use a system of equations to solve the world problem. The sum of the two numbers is 24. Their difference is 14. Find the numbers
Bess [88]
24+x=14 
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x=-10
7 0
4 years ago
Walnut High Schools Enrollment is exactly five times as large as the enrollment at walmut junior high the total enrollment for t
Vaselesa [24]

Answer:

142

Step-by-step explanation:

If the enrollment is five times as big, then that is six different things. So, take 852 and divide it by 6 to get 142. Or in other words:

852÷6=142

142x6=856

I hope this helps. Cheers^^

6 0
3 years ago
50 POINTS !!<br><br><br> PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.
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5 0
3 years ago
The area of an isosceles trapezoid is 45 cm2 and its height is 5 cm. Find the perimeter if one of the legs is 2 3 of the sum of
eduard

Answer:

Step-by-step explanation:

The formula for determining the area of a trapezoid is expressed as

Area = 1/2(a + b)h

Where

a and b are the length of the 2 parallel sides or bases of the trapezoid. Since it is an isosceles trapezoid, then the length of the 2 legs are equal.

h represents the height of the trapezoid.

From the information given,

Area = 45cm²

h = 5 cm

45 = 1/2(a + b)5

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if one of the legs is 2/3 of the sum of the bases, it means that the height of each leg is

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Therefore,

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7 0
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