Answers
Answer:
Please check explanations
Step-by-step explanation:
Mathematically;
csc 2 theta = 1 / sin 2 theta
Sin 2 theta = sin (theta + theta)
= 2sin theta cos theta
So therefore;
csc 2 theta = 1/2(sin theta cos theta)
= 1/2 * 1/sin theta * 1/ cos theta
1/sin theta = csc theta
1/cos theta = sec theta
Thus;
csc 2 theta = 1/2 * csc theta * sec theta
csc 2 theta = 1/2 sec theta csc theta
Related Questions
out of these numbers which of them differ by 46. 29,17,38,71,35,63,24
Answers
Answer:
71
Step-by-step explanation:
Add 46 to each number, see if the sum is in the list. In the set of 7 numbers listed, two of them are even (24 and 38), and the other 5 numbers are odd
71
We do not need to look at all differences.
We need to find two numbers fairly far appart,
and not all look promising.
You could look at approximate differences,
or you could look at the last digit.
71-35 and 63-17 are the only promising differences,
because 71 and 63 are the only numbers large enough to be 46 more than another number in that list,
and when you calculate the last digit you calculate
11-5=6 and 13-7=6.
71-35=36
What is the decimal equivalent of 1/5?
Answers
Answer:
.2
Step-by-step explanation:
Answer:
.20
Step-by-step explanation:
1 divided by 5 is .20
What's the rate of inflation, this one will be worth 100 points for whoever gives me the correct answer and brainliest (If I can spell)
Answers
Step-by-step explanation:
it is 4.5% rate in inflation
I think it helps you
Answer:
a 4.5 % rate in change
Step-by-step explanation:
Ten gallons of a 25% salt solution are to be obtained by mixing solutions that are 13% salt and 33% salt
respectively. How many gallons of each are needed?
Answers
Answer:
salt + salt = salt
0.13x +3.3-0.33x =2.5
-0.20x=-0.8
x= 4 gallons (amt of 13% solution to be mixed)
10-x= 6 gallons (amt of 33% solution to be mixed)
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Cheers,
Stan H.
Step-by-step explanation:
please help i shall give brainliest
Answers
Answer:
I think the answer is d
Step-by-step explanation:
..........................................................
What happens when you change the y-intercept in an equation?
Answers
Answer:
changed
Step-by-step explanation:
going upbjvfvd
Olivia has a shoe box in the shape of a rectangular prism. She decorates 4 faces of the box,
leaving the top and the bottom without decorations. The unshaded parts of the model and
the diagram below show the parts that she decorates. What is the total area that Olivia
decorates?
5 in.
11 in.
8 in
190 square inches
440 square inches
366 square inches
256 square inches
Answers
Taking the test rn, it’s 190 square inches.
Found the answer on another site. Worked fine, hope that helps
Answer:
440
Step-by-step explanation:
I HAVE I READY TOO AND IT’S KILLING ME
B. The school prom committee sold presale tickets for
$18 each. Couples that showed up on the day of the
dance has to pay $24 each. There were 334 tickets
that were sold and the committee made $7320. How
many students purchased tickets at the dance?
Answers
Answer:
218 students purchased tickets at the dance.
Step-by-step explanation:
Let,
x be the number of presale tickets
y be the number of tickets sold at the dance
According to given statement;
x+y=334 Eqn 1
18x+24y=7320 Eqn 2
Multiplying Eqn 1 by 18
18(x+y=334)
18x+18y=6012 Eqn 3
Subtracting Eqn 3 from Eqn 2
(18x+24y)-(18x+18y)=7320-6012
18x+24y-18x-18y=1308
6y=1308
[tex]\frac{6y}{6}=\frac{1308}{6}\\y=218[/tex]
Therefore,
218 students purchased tickets at the dance.
negitive 1/5 n +7=2 solve quick first to get mark brainlest
Answers
Step-by-step answer:
-1/5n+7=2
-1/5n+7-7=2-7
-1/5n=-5
-1/5n/-1/5=-5/-1/5
n=25
Tyson works 34 hours each week at $20.39 per hour.
Tyson has 29.51% taken out for taxes and withholdings,
What is the net pay per year?
A $488.68
B. $10,638.21
C. $204.58
D. $25,411.31
Answers
Answer:
34 X 20.39 = 693.26
693.26 X 52 = 36049.52
100-29.51 = 70.49
36049.52/100 X 70.49 = 25411.306648
monetary value rounded 2dp = $25411.31
answer is D
What is the constant proportionality in the equation y=5x
Answers
Answer: General equation of direct variation: y = kx, where k is the constant of proportionality. y = 5x, so 5 is the constant of proportionality
Step-by-step explanation: Hope this helps
John says the transformation rule (x, y) = (x + 4, y + 7)
can be used to describe the slide of the pre-image (4,5)
to the image (0, -2). What was his error?
Answers
Answer:
The pre-image is the point you start with. To check the transformation rule, substitute the values of the coordinates (4, 5) into the rule. You get (4, 5) → (4+4, 5+7). Simplify to get (4, 5) → (8, 12). This is the image. Instead the rule was applied to the image. This is the source of the error.
ABC ~ XYZ Find the length of BC (need an answer as soon as possible, with showing work please)
Answers
Answer:
BC is equal to 7
Step-by-step explanation:
18 = 2x + 4
18 - 4 = 14
14 = 2x
14/2 = 7
7 = x
find the common factor and least first 3 possible multitiple of each number using any of the method 25and 75
35and 45
21and 56
54and 72
27and 36
12and 16
Answers
9514 1404 393
Answer:
see attached
Step-by-step explanation:
The greatest common factor (divisor) is found in the GCD column of the attached spreadsheet. The GCD is calculated using the spreadsheet function. The least common multiple (LCM) is the product of the numbers, divided by their GCD.
Other multiples shown are 2 times, 3 times, and 4 times the least common multiple.
14. Mrs. Buchanan is planning marching routines for the school band. The band has 36 members. Band members can march in any number of rows as long as each row has the same number of members. The marching path, however, limits members to 6 per row.
Answers
Question:
Make a list of the different arrangements that Mrs. Buchanan could use.
Answer:
[tex](x,y) = \{(1,36),(2,18),(3,12),(4,9),(6,6)\}[/tex]
Step-by-step explanation:
Given
[tex]Members = 36[/tex]
[tex]Rows\ Limit = 6[/tex]
Represent the rows with x and the column, y.
This means that:
[tex]x * y = 36[/tex]
Make y the subject:
[tex]y = \frac{36}{x}[/tex]
The list is then generated as follows:
When x = 6.
[tex]y = \frac{36}{6} = 6[/tex]
[tex](x,y) = (6,6)[/tex]
When x = 5
[tex]y = \frac{36}{5} = 7.2[/tex]
This result can not be use because the result of the number of columns must be an integer
When x = 4
[tex]y = \frac{36}{4} = 9[/tex]
[tex](x,y) = (4,9)[/tex]
When x = 3
[tex]y = \frac{36}{3} = 12[/tex]
[tex](x,y) = (3,12)[/tex]
When x = 2
[tex]y = \frac{36}{2} = 18[/tex]
[tex](x,y) = (2,18)[/tex]
When x = 1
[tex]y = \frac{36}{1} = 36[/tex]
[tex](x,y) =(1,36)[/tex]
So, the possible list is:
[tex](x,y) = \{(1,36),(2,18),(3,12),(4,9),(6,6)\}[/tex]
The perimeter of a rectangular field is 292 yards. If the width of the field is 63 yards, what is its length?
Answers
Answer:
83
Step-by-step explanation:
do the math
Answer:
83
Step-by-step explanation:
Solution:
63 + 63 = 126
292 - 126 = 166
166 ÷ 2 = 83
Answer: 83
A.
30°
30°
70%
70°
50°
30°
50°
30°
Answers
Answer:
What are you supposed to do
Step-by-step explanation:
I can help
Answer:
A
Step-by-step explanation:
the only option is A
please help with thus question
Answers
Answer:
The Temperature at 7PM
Step-by-step explanation:
You place a 16 foot ladder against a building. The angle that the ladder forms with
the ground is 60 degrees. How far from the base of the building is the bottom of
the ladder? round to the nearest foot.
Answers
Answer:The base of the ladder should be placed so that it is one foot away from the building for every four feet of hight to where the ladder rests against the building. This is known as the 4 to 1 rule.
Step-by-step explanation:
The product of a number and -8 decrease by 13 is less than or equal to 27
Answers
Answer:
less than
Step-by-step explanation:
Answer:
less than
Step-by-step explanation:
PLEASE HELP FAST...WILL MARK AS BRAINLIEST IF GIVEN GOOD ANSWER
3. What is the length of segment AB? Show or explain how you know.
Answers
Answers
I got answer 16.9
Step-by-step explanation:
1. Let's first look at triangle XYC. We know angle Y is 90 degrees because it has the symbol. and it is given that Angle X 45 degrees. Using the triangle interior angle theoreom, a triangle has 180 degrees so Angle C is 45 degrees. Know let find the sides, First we can deduce XY is 5 cm because of the triangle midsegment theorem XY is half of BC so since we know BC is 10 that means XY is 5. Then applying 45-45-90 triangle rules, XY=5, YC=5 and XC=[tex]5\sqrt{2}[/tex].
2.Now let look at the triangle XBC. Let find one missing angles. In the triangle . A angle bisector XC bisects XY and BC . Using that information Angle C of XYC = Angle C of XBC. So angle C=45 degrees. Knowing looking at the main triangle ABC Angle A=30, Angle C= 45+45=90 and Angle B=60 by interior triangle theorem. So going back to Angle X so angle x is 75 degrees due to interior triangle theorm. Also since Y=90 degrees it forms a linear pair to triangle AXY so Y=90 for AXY
Now let apply 30-60-90 triangle rules to AXY. XY =5, AY=[tex]5\sqrt{3}[/tex] and AX=10.
Finally. Apply 30-60-90 triangle rules to ABC. AC=[tex]5\sqrt{3}[/tex] +5 BC=10 and AB should turrn out to be 16.9.
This may not be right,but good luck:)
5x + y = 11
4x + y = 9
Answers
The second one is -4
Two brothers, Paul and Julio, left the schoolyard and decided to have a very long footrace. Julio started running at exactly 4:00pm, and ran at a pace of 300 meters per minute. Paul started running at exactly 4:10pm and ran at a pace of 420 meters per minute. Write two equations where y = distance covered and x = the number of minutes after 4:00pm to represent Paul’s and Julio’s journey
Answers
Answer:
this is eassy
Step-by-step explanation:
Can someone plz help .quick!!! Plz I beg u
Answers
Answer:
its number 2
Step-by-step explanation:
Question: which points are reflections of each other across both axes?
Answers
Answer: I think your answer would be A. (-2,8) and (2,-8)
I hope it's right
Oder the least to greatest: -3, -10, -1 please helppp
Answers
From least to greatest: -10, -3, -1
A factory makes tissue boxes. When the net is folded to make the tissue box, the length is 25 cm, the width is 5 cm, and the height is 20 cm. How much cardboard material is used to make each tissue box?
Answers
Answer:
1450 cm
Step-by-step explanation:
A cardboard box is shaped like a rectangular prism.
To solve the above question, we apply the formula for Surface Area of a Rectangular Prism
A=2(wl+hl+hw)
Where
w = width = 5cm
I = length = 25cm
h = height = 20 cm
=2 × (5×25+20×25+20×5)
= 2(125 + 500 + 100)
= 2(725)
=1450 cm of cardboard material should be used.
Divide € 165 into the ratio 1:2:12
Answers
Answer:
11 : 22 : 132
Step-by-step explanation:
1 + 2 + 12 = 15
165 ÷ 15 = 11
1 × 11 = 11
2 × 11 = 22
12 × 11 = 132
11 : 22 : 132
Help omggg jdeekeekekekekeieieieieieoi. Don’t wanna be mad at
Answers
Answer:
yes and yes
Step-by-step explanation:
Can y’all help me on these plzz I’ll mark Brainly!!!!!!!
Answers
Answer:
its d for number 1
Step-by-step explanation: