Answer:
x + 43 = 72.98
- 43 - 43
x = 29.98
Step-by-step explanation:
The price of an item has been reduced by 40%. The original price was $95 . What is the price of the item now?
Answer:
$57
Step-by-step explanation:
40%=0.4
95*0.4=38
95-38
57
sin3(2x) = 1/2sin(2x) [1 − cos(4x)]
Answer:
I suppose we start with sin³(2*x) and we want to get:
(1/2)*sin(2*x)*(1 - cos(4*x))
Here we will use the relationships:
cos²(x) + sin²(x) = 1
and
cos²(x) = (1 + cos(2x))/2
Now let's start:
sin³(2*x) = sin(2*x)*sin²(2*x)
and we can write:
sin²(2*x) = 1 - cos²(2*x)
replacing that in the above equation we get:
sin³(2*x) = sin(2*x)*sin²(2*x) = sin(2*x)*(1 - cos²(2*x))
now we can use: cos²(2*x) = (1 + cos(2*2*x))/2
cos²(2*x) = (1 + cos(4*x))/2
if we replace that in the equation above we get:
sin³(2*x) = sin(2*x)*(1 - cos²(2*x)) = sin(2*x)*( 1 - (1 + cos(4*x))/2)
sin³(2*x) = sin(2*x)*( 1 - 1/2 - cos(4*x)/2)
sin³(2*x) = sin(2*x)*( 1/2 - cos(4*x)/2)
sin³(2*x) = sin(2*x)*( 1 - cos(4*x))/2
sin³(2*x) = (1/2)*sin(2*x)*( 1 - cos(4*x))
If PQRS is a parallelogram, find the values of X and Y
Please help!!
Answer:
X = 4
y = 15
Step-by-step explanation:
I hope that is useful for you :)
If you place a 34-foot ladder against the top of the 30-foot building,how many feet will the bottom of the ladder be from the bottom of the building
Answer:
It will be 16 feet by the bottom of the building
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
30[2]+b[2]=34[2}
900+b[2]=1156
-900=-900
=16
Can someone help me?
Answer:
Step-by-step explanation:
someone hep me please no one is helping me
Answer:
the answer is 38 cm
Step-by-step explanation:
10+6+(6x3)+4=38 the 2 missing numbers are 2cm and 3cm
Solve the equation x2 - 6x – 41 = 0 to the nearest tenth.
Answers please I need it done ASAP
Answer:
1) 11^42. [. ( a^b)^c is a^bc]
2) 5^5. [a^b/a^c= a^(b-c)
3) 14^24
4) 3^10
Find the measurement of arc HLK
Answer:
The answer is 210
Step-by-step explanation:
So arc HL is equal to 180 because angle G is equal to 180
Arc KL is equal to 30
30+180=210
so 210 is your answer
I got assigned a review of the old stuff I learned. I don't quite remember how to find perpendicular stuff.
Answer:
G
Step-by-step explanation:
Determine the term containing y^5 in the expansion of (x-3y)^8
Answer:
-13608x³y⁵Step-by-step explanation:
Since y has degree of 5, x has degree of:
8 - 3 = 5The required term of the given binomial expansion (x - 3y)⁸ is:
8C₅(x³)(-3y)⁵,The value of the constant:
8C₅ = 8!/5!(8-5)! = 7*8 = 56 * (-3)⁵= -13608So the full term is:
336x³(-3)⁵y⁵ = -13608x³y⁵Which point on the number line below represents the number opposite the
number - 5
OR
-5 -4 -3 -2 -1 0 1 2 3 4 5
A) Point P
B) Point Q
C) Point R
O D) Points
PLEASE!!!!!!! 100 POINTS QUICK
Answer:
D
Step-by-step explanation:
one angle of a linear pair is four times the other,find these angles.
6 teaches equally share 1/2 a box of paper what fraction of the box of paper does each teacher receives
Answer:
1/2 divided by 6
0.5/6
0.0833
please help which one is it? i'll give brainliest and don't give the wrong answer
Answer: they are corresponding
Step-by-step explanation:
this means they are basically in the same spot and they are congruent
can somone please help me
Answer:
Choice C. -17
Step-by-step explanation:
6 to 7 = -13
7 to 8 = -15
8 to 9 = =17
Ms. Thomas is restocking the gym equipment. Sports Authority is selling 12 volleyball nets for $840. How much money would Ms. Thomas spend on each volleyball net?
Answer:
70 dollars
Step-by-step explanation: -
In ΔRST, s = 58 inches, ∠R=115° and ∠S=19°. Find the length of r, to the nearest 10th of an inch.
In ΔRST, s = 58 inches, ∠R=115° and ∠S=19°. the length of r, to the nearest 10th of an inch, is 365.9 Inches
What is a law of sine?Law of sines is a formula relating the length of the sides of a triangle to the angles of the triangle.
a/Sin A = b/Sin B = c/Sin C
Where a is the side facing angle A, b is the side facing angle B and c is the side facing angle C.
Hence,
58/Sin 19 = r/Sin 115
r = 58 Sin 115/ Sin 19
= 365.9 Inches
Therefore, In ΔRST, s = 58 inches, ∠R=115° and ∠S=19°. the length of r, to the nearest 10th of an inch, is 365.9 Inches.
Learn more about sine rule;
https://brainly.com/question/16309826
#SPJ1
Help? What is the surface area of the square pyramid?
Answer:
Step-by-step explanation:
base area = 7² = 49 in²
lateral area = 4×½(7)(6) = 84 in²
surface area = 49 + 84 = 133 in²
Select the correct answer,
Sam plans to use a spinner to choose which friend to invite to the movies, and he wants each friend to have a fair chance of being selected.
Dean
Carl Bart
Alec Dean
Alec
Bart
Carl
Dean Alec
Bart Carl
Spinner 1 Spinner 2
Which spinner should Sam use?
ОА
spinner 2
ОВ.
spinner 1
Ос.
either spinner 1 or spinner 2
OD
neither spinner 1 nor spinner 2
Step-by-step explanation:
Spinner 2
Probability helps us to know the chances of an event occurring. Sam should use the second spinner.
What is Probability?Probability helps us to know the chances of an event occurring.
[tex]\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}[/tex]
Given that Sam plans to use a spinner to choose which friend to invite to the movies, he wants each friend to have a fair chance of being selected.
The term fair means that everyone or everything that is in the list should have equal opportunity.
Now, since Sam wants each friend to have a fair chance of being selected, therefore, the area on the spinner for each friend should be equal.
Hence, Sam should use the second spinner.
Learn more about Probability here:
https://brainly.com/question/795909
#SPJ2
The graphs of rhombus RHOV and its image are shown below
Angle H' is the result of its pre-image, angle
sliding horizontally in a
direction and vertically in a
direction.
Answer:
in the photo
Step-by-step explanation:
Steve draws a triangle in ink on a sheet of paper. He folds the paper in half before the ink dries, pressing the ink on to the other half of the sheet.
What will the image of the triangle on the right side look like? Click on the correct sheet.
Answer:
2nd picture is right......
Answer:
the second one
Step-by-step explanation:
it is a reflection of the triangle on the left
help please i rlly need help and if you don't know then don't answer bc i need a right answer ;(
Answer:
BAD=100° (given)
ADC=105° (180-75)
DCB=50° (vertical angles)
CBA=105° (same as ADC)
I GIVE BRAINLIEST FOR EXPLANATION AND CORRECT ANSWER EXTRA POINTS 1
Answer:
864 squared
Step-by-step explanation:
Answer:
This is a right angle triangle so
[tex] {hyp}^{2} = {opp}^{2} + {adj}^{2} [/tex]
[tex] {42}^{2} = a {}^{2} + 30 {}^{2} \\ 1764 = a {}^{2} + 900 \\ {a }^{2} = 1764 - 900 \\ a { }^{2} = 864 \\ a = \sqrt{864 } \\ a = 29.39[/tex]
earn 134 in 8 hours_per hour
Answer:
hi
Step-by-step explanation:
answer this correctly.
23(22+78)×34÷21=?
Answer:
23(22+78)(34)/21 =
78200/21
(Decimal: 3723.809524)
Answer:
78200 / 21 = 3723 17/21 = 3723.80952381
Step-by-step explanation:
23(22+78)×34÷21
Add 22 and 78 to get 100.
23 x 100 x 34 / 21
Multiply 23 and 100 to get 2300.
2300 x 34 / 21
Multiply 2300 and 34 to get 78200.
78200 / 21
Hi please help me ANYONE CAN HELP ME????
Answer:
-10
Step-by-step explanation:
x has to be less than -5. Since -10 is further away from 0 than any number it is the smallest. Also, -10 is more to the left.
What type of triangle is shown in the image?
Answer:
Acute isosceles triangle
Step-by-step explanation:
No angle is greater than 90 and it has two equal sides
Answer:
acute isosceles triangle
Step-by-step explanation:
All of the angles are less than 90 degrees and two of the side are the same length
What is the greatest common factor of 36,12, and 45
Answer:
3
Step-by-step explanation:
Find the missing side length.
x = 6
Explanation:
use the pythagorean theorem which is a^2 + b^2 = c^2. 8 goes in either the a or b position and 10 is the longest side so it will go in the c position.