Answer:
Step-by-step explanation:
56(cos(33) + i sin(33)) = 7(cos(11°) + i sin(11°))
Divide both sides by 7 to get;
8(cos(33) + i sin(33)) = (cos(11°) + i sin(11°))
Expanding and Rearranging gives;
8cos(33) + 8i sin(33)) - cos(11) - isin(11)
This gives ;
8Cos(22) + 8i sin(22) = 8(Cos(22) + I sin(22)
What is the value of 2a3 - a, when a = 4?
The value of the given equation is 124.
Calculation of the a value:Since the equation is [tex]2a^3 - a[/tex] and a = 4
So, the value of a is
[tex]= 2a^3 - a\\\\= 2(4)^3 - 4\\\\= 128 - 4[/tex]
= 124
Hence, The value of the given equation is 124.
Learn more about the value here: https://brainly.com/question/4700495
Find the mean of the following set: 30, 16, 29, 14, 21
Answer:
the mean is 18.2, median is 16, and there is no mode
Step-by-step explanation:
Answer:
22
Step-by-step explanation:
mean is the average of the number.you have to add up all the number then divide it by how many numbers there are.
your question is :30,16,29,14,21 (5 number)
(30+16+29+14+21) / 5 = 22
help please! find m∠bcf
Answer:
BCF = 140°
See attached image.
Answer:
m<BCF=140°
Step-by-step explanation:
first find m<BCD
m<BCD=180-50-90
m<BCD=40°.
to find m<BCF, we can do 180-m<BCD, since m<BCD and m<BCF add up to 180° (they form a straight angle)
180-m<BCD=m<BCF
180-40=m<BCF
m<BCF=140°
_______ :21=5:7
10:100=_______:200
12:28=_________:7
48:_________=8:9
36:75=12:________
56:120=_______:8
2:4=________:2
45:________=15:20
_______:65=9:13
180:210=_______:35
63:_______=7:8
48:72=4:_______
________:100=6:10
36:108=6:________
3:________=1:3
_________:180=8:20
81:126=9:_______
________:33=2:3
Answer:
Step-by-step explanation:
1) 10:18=5:9
2) 15:21=5:7
3) 10:100=20:200
4) 12:28=3:7
5) 48:54=8:9
6) 36:75=12:25
7) 56:120=3.733:8
8) 18:24=6:8
9) 2:4=1:2
10) 45:60=15:20
11) 45:65=9:13
12) 180:210=30:35
13) 63:72=7:8
14) 48:72=4:6
15) 60:100=6:10
16) 36:108=6:18
17) 3:9=1:3
18) 72:180=8:20
19) 81:126=9:14
20) 22:33=2:3
Answer:
1. 15 :21=5:7
2. 10:100=20:200
3. 12:28=3:7
4. 48:54=8:9
5. 36:75=12:25
6. 56:120=3.73..:8
7. 2:4=1:2
8. 45:60=15:20
9. 45:65=9:13
10. 180:210=30:35
11. 63:72=7:8
12. 48:72=4:6
13. 60:100=6:10
14. 36:108=6:18
15. 3:9=1:3
16. 72:180=8:20
17. 81:126=9:14
18. 22:33=2:3
Bob needs to tile his
kitchen floor. Each
tile is 12 inches by
12 inches. His kitchen
is 11 feet by 13
feet. How many tiles
will he need?
Answer:
143ft
Step-by-step explanation:
12in is 1 foot and 13x11 (11x13) is 143
calculate the tax amount they pay in a form of tax (tax =R14 850)
Answer:
246373737
Step-by-step explanation:
good luck
A fruit vendor wholesalers 50 kg of peaches for $ 110. For other business expenses, add $ 15. He got the kilo of peaches for $ 2.99. Unfortunately, over the weekend, he lost the rest of 10 kg that he didn't own. Has the peach business paid off for him?
Find the value of x please
Answer:
x=54
Step-by-step explanation:
55+54= 109
180-109=71
x+17=71
=54
8 × 2 ÷ 6 i need help
Answer:
2.6 or 2.66
Step-by-step explanation:
multiply 8 x 2 = 16
divide 16 ÷ 6
there i guess
Answer:
2 2/3
Step-by-step explanation:
Since we have both multiplication and division, we solve if from the beginning to the end. 8 * 2 = 16 and 16 divided by 6 is equal to 8/3, which simplifies to 2 2/3
Choose True or False A. There is 0.15 centimeter in 15 meters. B. Eight pounds is equal to 128 ounces. C. There are 108 inches in 9 yards. D. 16 kilometers is equal to 16,000 meters.
Answer:
B
Step-by-step explanation:
Eight pounds are equal to 128 ounces.
A) False
B) True
C) False
D) True
Find the measure of the indicated angle to the nearest degree
Answer:
? = 36.87°
Step-by-step explanation:
sin ? = 36/60 = 0.6
? = 36.87°
PLEASE HELP ME I AM BEING TIMED, I WILL MARK BRAINLIEST TO WHOEVER GETS THIS RIGHT
Answer:
2m-44
Step-by-step explanation:
this is the answer
Ms. Wang and her class are selling bags of cookies to raise money for a field trip.
Each bag weighs 140 grams and has 6 cookies.
Each cookie has the same amount of dough that weighs 14 grams.
Each cookie has the same amount of candy
If a bag of candy has 20 grams of Candy, how many bags of candy does the class need to make 18 cookies?
Answer:
9 bags of candy
Step-by-step explanation:
6 cookies at 14 grams each = 84 grams meaning the remaining grams of the 140 have to be the weight of the candy which = 56 grams (140-84). To find out how much candy is in one cookie divide 56 by 6 which = 9.33333. You then divide 20 by 9.3333 which = 2.14 (rounded to nearest 10th). Since you can get just over 2 cookies worth of candy per bag you only need half the number of cookies in bags of candy (9 bags)
Please help I will give you brainliest
Answer:
34
Step-by-step explanation:
Please tell me the equation of the line below in slope intercept form
Answer:
y=3/2x+2
Step-by-step explanation:
i hope this helps :)
Need help don’t know how to do this
i need help on this plz
Answer:B
Step-by-step explanation:
Given y = 4x- 5. Express x in terms of y.
Answer:
y+5/4 = x
Step-by-step explanation:
I think that this will get really messy if you integrate with respect to y.
Here is what I suggest you do.
=2+82−5y=2x+8x2−5
Evaluated at =1y=1 and =5y=5
1=2+82−5=21=2x+8x2−5x=2
5=2+82−5=1
5=2x+8x2−5x=1
∫10(5−1)+∫212+82−5−1∫01(5−1)dx+∫122x+8x2−5−1dx
Percents! Please answer!!
Answer:
39%
Step-by-step explanation:
83-last price
83 last price
100 x ?
100 * last price = 83 . x
x= 39
Which value for x satisfies the equation 3x – 6 = 15?
Ο Α. 3
O B. 7
O C. 18
O D. 27
Answer:
15-6=9
3÷9=3
Step-by-step explanation:
so it is A because if you ever see that just subtract the one number in front of the equal sign then divide the number beside the x.
A population of 430 animals increases at an annual rate of 19%. Find the number of animals present after 5 years. Round your answer to the nearest whole number.
Answer:
1026Step-by-step explanation:
Initial number = 430Increase rate = 19% = 1.19 times per yearNumber of animals after 5 years:
430*1.19^5 = 1026What is the measure of angle D?
Answer:
m<D = 26
Step-by-step explanation:
<D = x
x + 122 + 32 = 180
x + 154 = 180
x = 180 - 154
x = 26
Answer:
Step-by-step explanation:
<D + 122° + 32° = 180° ( being sum of angles of triangle )
< D = 180° - 154°
< D = 26°
India has $100 and saves $18. each month China has $60 and saves 20 each month when will the girls have the same amount of money
please help quick!! i’ll give brainliest!!
Answer:
its the second one i belive
Step-by-step explanation:
what is 24.79 x 4,022 pls
Answer:
[tex]24.79 \times 4022 \\ = 99705.38[/tex]
Answer:
99705.38
Step-by-step explanation:
hope that helps
if correct plz plz mark as brainliest
thank you and have a good day
19NBoli
:)
The angle measure of angle LNM is __Degrees
Answer:
90 Degrees
Step-by-step explanation:
<LMN is an interior angle whose measure is equal to one-half the measure of its intercepted arc. Since the intercepted arc LN is the diameter of the circle, its measure is 180 degrees, so m<LMN = 90.
(3x + 10) + (3x + 2)
Answer: 18
Step-by-step explanation: 3 + 10 = 13. 3 + 2 = 5. 13 + 5 = 18
Answer:
Step-by-step explanation:
3x + 10 + 3x + 2 add the like terms
(3x + 3x) + (10 + 2)
6x + 12 <-------------------- Final
Val needs to find the area enclosed by the figure. The figure is made by attaching semicircles to each side of a 42m-by-42m square. Val says the area is 1005.48 m^2. Find the area enclosed by the figure. Use 3.14 for pi. What error might Val have made?
Thanks in advance!
I don't have anymore points so please make a good and accurate answer.
Answer:
Area of the enclosed figure = 3148.74 [tex]m^{2}[/tex]
Step-by-step explanation:
Area enclosed by the figure = 2 x area of the semicircle + area of the square
For the semicircle,
radius = [tex]\frac{diameter}{2}[/tex]
= [tex]\frac{42}{2}[/tex]
= 21 m
area of a semicircle = [tex]\frac{1}{2}[/tex] x [tex]\pi r^{2}[/tex]
= [tex]\frac{1}{2}[/tex] x 3.14 x [tex](21)^{2}[/tex]
= 692.37 [tex]m^{2}[/tex]
area of a square = length x length
= 42 x 42
= 1764 [tex]m^{2}[/tex]
Thus,
area enclosed by the figure = 2 x 692.37 + 1764
= 3148.74 [tex]m^{2}[/tex]
The total area enclosed bu the figure is 3148.74 [tex]m^{2}[/tex]
(Look at the picture, please.)
Answer:
the answer is D : 1/2 :))))))
What are the coordinates if (-5,-6) is rotated by 180?
25 pts?
Answer:
(5,6)
Step-by-step explanation:
Initial Coordinate rotated 180° is just a sign change new coordinate
coordinate (x, y) rotated 180° is just a sign change (-x, -y)
if (-x, y) rotated 180° is just a sign change (x, -y)
if (x, -y) rotated 180° is just a sign change (-x, y)
if (-x, -y) rotated 180° is just a sign change (x, y)