Answer:
Options A and D are correct
Step-by-step explanation:
Here, we want to find the square root of the negative number;
x^2 = -64
x^2 = 64 * -1
x= √64 * √-1
Mathematically we can write the √-1 as i
X = √64 * i
Square root of 64 is plus or minus 8
so x = -8i or 8i
The solutions of an equation are the true values of the equation.
The expression that represents the solution(s) of [tex]\mathbf{8i}[/tex] is [tex]\mathbf{-8i}[/tex]
The equation is given as:
[tex]\mathbf{x^2 = -64}[/tex]
Take square roots of both sides
[tex]\mathbf{x = \pm\sqrt{-64}}[/tex]
Expand
[tex]\mathbf{x = \pm(\sqrt{64} \times \sqrt{-1})}[/tex]
[tex]\mathbf{x = \pm(8 \times \sqrt{-1})}[/tex]
In complex numbers,
[tex]\mathbf{ \sqrt{-1} = i}[/tex]
So, we have:
[tex]\mathbf{x = \pm(8 \times i)}[/tex]
[tex]\mathbf{x = \pm8i}[/tex]
Split
[tex]\mathbf{x = 8i\ or -8i}[/tex]
So, the expression that represents the solution(s) of [tex]\mathbf{8i}[/tex] is [tex]\mathbf{-8i}[/tex]
Read more about expressions at:
https://brainly.com/question/23767452
The ratio of men to women working for a company is 3 to 2 . If there are 58 women working for the company, what is the total number of employees?
Answer:
145
Step-by-step explanation:
Who know this for my other math these plz
Answer:
7. c
8. d
9. c
10. c
11. b
12. d
13. c
Answer:
7. C: 80
8. D: 100
9. C: 80
Step-by-step explanation:
each line equals 180
where H is at, has a 100 above it.
that equals one angle, which is 100. That line has 2 angles at equal 100 since they are one opposite sides of each other.
you subtract 180-100= 80. That's where you get ur 80 angle from. Hope this helps, I'm bad at explaining stuff
Cantrise surveyed 100 students about their favorite
type of music. After she makes the graph, she receives
two more votes for rap. What is the new ratio of rap to
total types of music?
Answer: 2:100
Step-by-step explanation:
please help i don’t know how to find the slope
Jason solves a math problem on the board using the Power of Products Property. Is his answer correct? Explain.
63 • 73 = 423
A.
Yes; 63 • 73 is equal to (6 • 7)3 or 423.
B.
Yes; 63 • 73 is equal to (6 • 7 • 3) or (42 • 3).
C.
No; 63 • 73 is equal to (6 • 7 • 3) or (42 • 3).
D.
No; 63 • 73 is equal to (6 • 7)3 + 3 or 426.
Answer:A
Step-by-step explanation:
In 2005, the UT Longhorns scored 15 times to win the Big 12 Championship Game 70-3. All of their points came from touchdowns (6 points each) and extra point kicks (1 point each). How many touchdowns and extra points did the Longhorns have in that game? (For the purposes of this problem, touchdowns and extra point kicks count as separate "scores".
Answer:
The number of touch downs = 11
The number of extra points = 4
Step-by-step explanation:
The number of times UT Longhorns scored = 15 times
The composition of the scores = Touch down and point kicks
The points with which UT Longhorns won the game = 70-3
The points that came from each touch down = 6 points
The points that came from each point kick = 1 points
We have;
The number of touch downs + Point kicks = 15
The number of touch downs = 15 - Point kicks
Let the number of point kicks = P
Therefore;
The number of touch downs = 15 - Point kicks = 15 - P
The number of touch downs = 15 - P
Given that the total points of UT Longhorns = 70, we have;
6 × (15 - P) + 1 × P = 70
90 - 6·P + P = 70
5·P = 90 - 70 = 20
P = 4
∴ The number of point kicks = P = 4
The number of point kicks, extra points = 4
The number of touch downs = 15 - P = 15 - 4 = 11
The number of touch downs = 11
I need 15. please its my last question and fast
Please Help due in 3 min
Answer:
D y=-4x+1
Step-by-step explanation:
Answer:
C) -4x+1
Step-by-step explanation:
write a word problem that could be solved using the expression 2x+60
Answer:
Step-by-step explanation:
james want to buy a sirt that cost 95 dollars. he only has 60 dollars saved.
if james gets paid 2 dollars a day how many days would he have to work to get 80 dollars.
solve for x
y=2x+60
95=2x+60
Is - 7/8 or - 1/15 larger
Answer:
-1/15 because it is closer to zero on the negative half of a number line.
Answer:-1/15
Step-by-step explanation:When it comes to negatives sign the smaller number with the negative sign is always the greater number
i suck at math and i really need help asap!
Answer:
2
Step-by-step explanation:
2^{4-3}
=2
Which statement best models the equation 10+(−10)=0 ?
Find the distance between the points.
(0,6) and (0,2)
Answer:
4
Step-by-step explanation:
Because the formula of distance I'd root under x2 - x1 and y2-y1 and the answer Is 4 units
which is the graph of the exponential function y=8(5)^x?
Answer:
y=8(5)^(x)
Step-by-step explanation:
In parallelogram ABCD, what is the measure of z°?
115
60
65
180
Answer:
115
Step-by-step explanation:
angle A + angle D= 180 degrees
65+z=180
subtract 65 from both sides
z=115
Answer:
115
Step-by-step explanation:
Given the equation 5x – 2y = 22 and a solution (3a, 4). Find a.
Answer:
a = 2
Step-by-step explanation:
5(3a) - 2(4) = 22
15a - 8 = 22
15a = 30
a = 2
Figure 1 was
with a scale factor of
with the center at the origin
It was then
6 units
and 5 units
to produce
Figure 2.
Figures 1 and 2 are
because Figure 1 was
Huh? what do you mean
Write the equation of a line that passes through (0, -6) and (11, 1).
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ;)
“X000” means what? Please explain
Answer:
If your talking about texting ,then this means hugs and kisses
Step-by-step explanation:
in health class the students were asked what grains they preferredin the breakfeast cereal. What is the probibility that a random chosen student in the health class is listed out as their favorite grain?
Answers:
A: 20%
B: 35%
C: 14%
D: 30%
1.) Solve for c:
4c + 5 > -c-5
Answer:
Step-by-step explanation:
Identify the range of the function shown in the graph.
Answer:
There is no graph shown
Step-by-step explanation:
Answer:
no graph shown.
Step-by-step explanation:
None.
Factorise x^2-10
I need help
Answer:
This expression is not factorable with rational numbers.
f(x) = -7x + 1, find f(0).
Answer:
Step-by-step explanation:
f(0)= -7(0)+1= 0 + 1 = 1
19. Find the perimeter of a triangle if the side lengths are 3 1/2 ft, 5 2/3 ft,
and 4 1/6 ft.
Answer: 13 1/3
Step 1: Find the LCD
Step 2: Add the fractions
Step 3: Simplify
-1 2/7 + 4 i really need to answer this.
Answer:
5 29/100
Step-by-step explanation:
google helps
Answer:
n = 5/4
Step-by-step explanation:
Answer the questions using the drop-down menus.
At what type of boundary do strike-strip basins form?
At what type of boundary do wedge basins form?
At what type of boundary do rift basins form?
At what type of boundary do arc basins form?
Answer:
At what type of boundary do strike-strip basins form? transform
At what type of boundary do wedge basins form? convergent
At what type of boundary do rift basins form? divergent
At what type of boundary do arc basins form? convergent
Step-by-step explanation:
Hope this helps!
Answer:
Answer the questions using the drop-down menus.
✔ transform
At what type of boundary do wedge basins form?
✔ convergent
At what type of boundary do rift basins form?
✔ divergent
At what type of boundary do arc basins form?
✔ convergent
Step-by-step explanation:
Squandering Sam has $1,050 in his bank account. Every week he withdraws $40 to buy scratch off tickets. Saving Sally doesn’t have any money now, but is depositing every penny of the $35 a week she makes into a bank account. How many weeks will it take for Sam and Sally to have the same amount of money in their accounts?
Answer:
15 weeks
Step-by-step explanation:
Week 1: 1,050 ≠ 0
Week 2: 1,010 ≠ 35
Week 3: 970 ≠ 70
Week 4: 930 ≠ 105
Week 5: 890 ≠ 140
Week 6: 850 ≠ 175
Week 7: 810 ≠ 210
Week 8: 770 ≠ 245
Week 9: 730 ≠ 280
Week 10: 690 ≠ 315
Week 11: 650 ≠ 350
Week 12: 610 ≠ 385
Week 13: 570 ≠ 420
Week 14: 530 ≠ 455
Week 15: 490 = 490
a. 3.04 + 0.98
Help pleaseee for my little sister
Answer:
4.02
Step-by-step explanation:
1
3 . 0 4
0 . 9 8
4 . 0 2
18,000 divided by 60
Answer:
Step-by-step explanation:
300
300
Simple
18,000/60 = 300