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stepan [7]
3 years ago
15

What is the absolute value of -3+4i

Mathematics
2 answers:
Pavlova-9 [17]3 years ago
7 0

|-3+4i|=\sqrt{(-3)^2+4^2}=\sqrt{25}=5

Mars2501 [29]3 years ago
5 0

|-3+4i|=\sqrt{(-3)^2+4^2}=\sqrt{25}=5

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3x2 − y3 − y3 − z if x = 3, y = −2, and z = −5.
tatyana61 [14]
Ok so from experience on this site
3x2=3x^2
people don't know how to put exponents
3x^2-y^3-y^3-z
simplify first

3x^2-2y^3-z

x=3
y=-2
z=-5
3(3^2)-2(-2)^3-(-5)
3(9)-2(-8)+5
27+16+5
48
8 0
3 years ago
How do I solve this?
maria [59]

14.87

Step-by-step explanation:

use the Pythagorean theorem

a^2+b^2=c^2

C being the longest side of the triangle

14^2+5^2=C^2

196+25=C^2

221=C^

find the square root of 221

C=14.866

rounded to nearest tenth

C=14.87

6 0
2 years ago
Read 2 more answers
A lottery game has balls numbered 1 through 21. What is the probability of selecting an even numbered ball or an 8? Round to nea
Viktor [21]

Answer: 0.476

Step-by-step explanation:

Let A = Event of choosing an even number ball.

B = Event of choosing an 8 .

Given, A lottery game has balls numbered 1 through 21.

Sample space: S= {1,2,3,4,5,6,7,8,...., 21}

n(S) = 21

Then, A= {2,4,6,8, 10,...(20)}

i.e. n(A)= 10

B= {8}

n(B) = 1

A∪B = {2,4,6,8, 10,...(20)} = A

n(A∪B)=10

Now, the probability of selecting an even numbered ball or an 8 is

P(A\cup B)=\dfrac{n(A\cup B)}{n(S)}

=\dfrac{10}{21}\approx0.476

Hence, the required probability =0.476

7 0
3 years ago
Which of these expressions can be used to calculate the monthly payment for
Masja [62]

Answer:

m=(r/n)+0.114r

Step-by-step explanation:

m=monthly payment

r=remaining amount

n=# of months remaining

7 0
3 years ago
Which of these rational numbers is also an integer? 2/4, 4/2, 0.24, 2.4
Luda [366]
4/2 because 4/2=2 that is an integer
7 0
3 years ago
Read 2 more answers
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