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Vaselesa [24]
2 years ago
6

Find the real number X and y such that 3x + 2iy ix+ 5y = 7+5i​

Mathematics
1 answer:
OLga [1]2 years ago
6 0

Answer:

y=8 and x =-11

Step-by-step explanation:

kinda confused by the setting of the question

but i used this form ; 3x + 2iy+ xi + 5y = 7 + 5i instead of 3x+2iy xi+5y =7+5i

Then ;

you compare

3x + 5y =7....... equation 1

2iy + xi = 5i. ( cancel out i)

u get ; 2y + x =5 .......equation2

solve simultaneously by substitution method

giving u y=8

put value of y into equation 2 and get x=-11

hope that helps

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An object moving with a speed of 5m/s has a kinetic energy of 100J what is the mass of the object
Sphinxa [80]

Answer:

k. e. = 1/2 mv^2

100 = 1/2 * m * 5^2

100 = 1/2 * m * 25

m = 100* 2/25

m = 8 kg

hope it helps you

5 0
2 years ago
8. The volume of the pyramid is 168 cubic inches. Find the length of the rectangular base. (3pts)7 inI8 in.
olya-2409 [2.1K]

The length of the rectangular base is 9in

<h3>How to determine the value</h3>

It is important to note that the formula for determining the volume of a pyramid with rectangular base is expressed as;

Volume = lwh/3

Where;

  • l is the length of the rectangular base of the pyramid
  • w is the width of the rectangular base of the pyramid
  • h is the height of the rectangular base of the pyramid

Given the value of the volume, width an height of the pyramid as 168, 7 and 8, we substitute the values, we have;

168 = l × 7 × 8/ 3

cross multiply

l × 7 × 8 = 168(3)

Find the product

56l = 504

To determine the length, divide both sides by 56, we get;

l = 504/ 56

l = 9In

Hence, the value is 9in

Learn more about volume here:

brainly.com/question/463363

#SPJ1

5 0
9 months ago
A four-sided figure is resized to create a scaled copy. The lengths of its four
sp2606 [1]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Will mark as branilest and heart if help
Natali5045456 [20]

Answer:

B

Step-by-step explanation:

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3 0
2 years ago
-2x + 4 = -3x + 4<br> 3<br> One Solution<br> No Solution<br> Infinite Solutions
iogann1982 [59]

Answer:

X=0 or no solution

Step-by-step explanation:

-2x+4=-3x+4

cancel equal terms on both sides of the equation

-2x=-3x

move the variable to the left-hand side and change its sign

-2x+3x=0

collect like terms

x=0

6 0
2 years ago
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