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3 years ago

Simplify the given expression below: 2 divided by the quantity of 2 plus 5i

Mathematics

1 answer:

Sveta_85 [38]3 years ago

8 0

2/(2+5i) if you solve it, the answer would be 1+2.5i

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Solving systems of equations using substitution y=7 3x-3y=-18

oksano4ka [1.4K]

Answer:

x = 1

Step-by-step explanation:

If you have any questions feel free to ask in the comments

5 0

2 years ago

When making a book cover, Anwar adds an additional 20 square inches to the surface area to allow for overlap. How many square in

e-lub [12.9K]

Answer:

234 square inches

Step-by-step explanation:

We are given that

Length of book, l=11 in

Width of book, w=8 in

Height of book, h=1in

Additional area required to overlap=20 square inches

We have to find how many square inches of paper to make cover of one book.

We know that surface area of cuboid

$S=2(lb+bh+hl)$

Using the formula

Surface area of book

$S=2(11\times 8+8\times 1+1\times 11)$

$S=214 in^2$

Total paper used to make cover of one book

=Surface area of book +additional surface area

= $214+20$

$=234in^2$

Hence, Anwar will use paper to make cover of one book=234 square inches

3 0

3 years ago

Organize your data and find the rate of change.

LuckyWell [14K]

A .E is 7 inches for the left arm
E is 8 1/2 inches for the left foot
the inputs look like the length of the arm (ie x) the outputs are the length of the foot
rate of change=change in y change in x use the data you gathered or this equation they give you = 0.860 • + 3.302

B. find the difference in y, then the difference in x, then divide (y over x) to get the slope
8-7/7 1/2-6 1/2 = 1/1 =1

C.you plug in any (x,y) point you used to find the slope
Solve for B
y = mx+b y = 1*x + b 7.5 = 1*8 + b b =
7.5 - 8 = -0.5
y = x - 0.5

Hope this helps

8 0

3 years ago

PLEASE HELP ME WITH THESE TWO QUESTIONS

11Alexandr11 [23.1K]

They are both the second choices 1.)Transitive Property
2.)Reflective Property

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3 years ago

Which is the best estimate for the length of a lady bug?

Effectus [21]

Answer:

The average length of a ladybug is . 3 to . 4 inches.

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2 years ago