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Rina8888 [55]
3 years ago
9

45-2x(15-3) I need help finding out the answer to this problem because the answer I got I think it is wrong

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
6 0
45 - 2*(12)
45 - 24
21

Hope this helps!
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x^2-6x=-1 If the quadratic equation has real solutions, what are the solutions? Explain. Estimate irrational solutions to the ne
IgorC [24]
X^2 -6x +1 = 0
a=1
b = -6
c = 1

Use the quadratic formula
x = [-b  +- sq root (b^2 -4ac)] / 2a
x = [--6 +- sq root (36 - 4)] / 2
x = [ 6 +- sq root (32)] / 2
sq root (32) = 5.657

x1 = [ 6 + 5.657] / 2
x1 = 11.657 / 2
x1 = <span> <span> <span> 5.8285 </span> </span> </span>
x1 = 5.82 (to nearest tenth)

x2 = [ 6 - 5.657] / 2
x2 = .343 / 2
x2 = .1715
x2 = .2 (to nearest tenth)


7 0
3 years ago
Which of the following is the conjugate of a complex number with 5 as the real part and −2 as the imaginary part?
ololo11 [35]

Hello!

Given two real numbers "a" and "b", the complex number z is defined as:

The complex conjugate of "Z = a + bi" is "Z = a – bi"

Given the complex number Z = a - bi, "a" is called the real part and "b" the imaginary part.

Therefore:

Re(a) = 5

Im(b) = -2

z = a - bi

z = 5 - (-2)i

\boxed{\boxed{z = 5 + 2i}}\end{array}}\qquad\checkmark

Answer: 

a. 5 + 2i

__________________________

I Hope this helps, greetings ... DexteR! =)

7 0
3 years ago
Job A: $15.00 per hour (40 hours a week)​​Job B: $1,375 semi-monthly
blagie [28]

Notes before we start:

Semi-monthly means you get paid twice a week. We will find out the net pay in 2 weeks to see how much pays better.

Explanation:

Job A pays $15 an hour and whoever is working works 40 hours a week. We can multiply to find how much he/she earns in 2 weeks.

15 * 40 * 2 = $1,200

Job B pays $1,375 semi monthly which means that he/she got paid that much money in 2 weeks.

Answer:

Job B pays better.

Best of Luck!

8 0
3 years ago
I need help please! I really do! Thank you.
SCORPION-xisa [38]
\bf \qquad \textit{parabola vertex form}\\\\&#10;&#10;\begin{array}{llll}&#10;{y=(x-{{ h}})^2+{{ k}}}\\\\&#10;\end{array} \qquad\qquad  vertex\ ({{ h}},{{ k}})

notice your vertex there, 1, -3
h = 1
k = -3
7 0
3 years ago
Which graph best represents a continuous function with domain -3
castortr0y [4]

Answer:

the best represtents a continuous function with domain _3 is (B)

7 0
3 years ago
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