Answer:
Step-by-step explanation:
If there is a character you cannot type, such as θ, you are better off substituting a different letter, or describing it in words. For example, write it as "sinA" or "sin(theta)"
Never use 0 as a substitute for θ! 0 is a constant with a specific value.
Since the argument of the trig functions is an expression, you should put parentheses around it: sin(2A).
:::::
I used several trigonometric identities for this question:
Double-angle formula for sine: sin(2θ) = 2sinθcosθ
Double-angle formula for tangent: tan(2θ) = 2tanθ/(1-tan²θ)
Quotient identity: tanθ = sinθ/cosθ
Reciprocal identity: secθ = 1/cosθ
Pythagorean identity: 1+tan²θ = sec²θ
2sin(2θ) - tan(2θ) = 0
2sin(2θ) = tan(2θ)
2·2sinθcosθ = 2tanθ/(1-tan²θ)
2sinθcosθ = tanθ/(1-tan²θ)
2sinθcosθ = (sinθ/cosθ ) · 1/(cosθ(1-tan²θ))
2(1-tan²θ) = 1/cos²θ
2(1-tan²θ) = sec²θ
2-2tan²θ) = 1+tan²θ
1 = 3tan²θ
tan²θ = ⅓
tanθ = ±1/√3
θ = 30°, 330°
Find the solution mentally. 3⋅(-4)=a b⋅(-3)=-12 (-12)⋅c=12 d⋅24=-12
Answer:
a=-12
b=15
c=12
d=-12
Step-by-step explanation:
3(-4)=a
b(-3)=12
c=12
d(24)=12
3(-4)=a
-12=a
a=-12
b(-3)=12
-3b=12
b=12+3
b=15
c= 12
d(24)=12
24d=12
d=12-24
d=-12
Divide segments into three equal parts
Answer:
Hi. I'm pretty sure you are supposed to use a compass (that's what I had to use for this math work). So basically what you have to do is for the dividing it in four one first divide it into two and divide those new parts in to four and then you have four equal parts, using a compass and/or straightedge works best. For dividing the segments into three parts measure it maybe with a ruler if you have one and mark the points where it can be equally divided.
Step-by-step explanation:
Hope you understand that :) I don't know how to show you on here sorry :(
GOOD LUCK!
List six pieces of evidence for a chemical reaction:
Answer:
Temperature change, Color change, Odor change, Formation of gas, Precipitation
Chris worked 28 hours last month and earned $9 per hour. He spent $18 of his earnings since then.How much money does he have left
Answer:
$234
Step-by-step explanation:
28 x 9 = $252
$252 - $18 = $234
(take π=22/7). height of trapezium with parallel sides 6cm and 8cm and 63cm2.
Answer:
Circumference = 39.6 cm
We know:
Circumference of a circle = 2πr
⇒39.6 =2×
22
7
×r⇒
39.6×7
2×22
=r⇒r=6.3 cm
Also,
Area of the circle = πr2
=
22
7
×6.3×6.3=124.74 cm2
Step-by-step explanation:
#CarryOnLearning
A 6-pack of movie tickets cost $56.94. what is the unit price $__ per ticket
Answer:
$9.49
Step-by-step explanation:
56.94 divided by 6 is that! :) I hope im right
solve the sin, cos and tan of -240 degrees without calculator. Show Working
Step-by-step explanation:
sin(-240)°.
=cos(270-240)°
=cos 30°
=√3/2
cos(-240°)
=sin(270°-240°)
=sin30°
=0.5
tan(240°)
=tan(270°-240°)
=tan30°
=1/√3
(20 points)
What is the value of x?
☁︎
A:9.5
☁︎
B:10.6
☁︎
C:12.0
☁︎
D:25.0
Answer:
B. 10.6
Step-by-step explanation:
(x + 15)*15 = (20 + 12)*12 => interacting secants theorem
15x + 225 = (32)*12
15x + 225 = 384
Subtract both sides by 225
15x = 384 - 225
15x = 159
Divide both sides by 15
x = 159/15
x = 10.6
what is the next term of the arithmetic sequence? -6,-8,-10,-12,-14
Answer:
-16
Step-by-step explanation:
If you look at the sequence, you'll notice that each number is two less than the number preceding it
-8 is 2 less than -6
-10 is 2 less than -8
And so on.
-16 is two less than -14, so it is the next number in the sequence.
Help ASAP please!!!!!!
Answer:
[tex]x5 {36}^{?65} \\ [/tex]
At a bakery, you can buy 1/2 a pie for $6. Find the unit rate in cost in dollars per pie.
Answer: $12
Step-by-step explanation:
since 1/2x2=1 we can multiply 6 by 2 to find the price of a whole pie
whats an expression equivalent to 7/8
Answer: 7/8
Step-by-step explanation:
To find the equivalent expression of a fraction, we can either multiply numerator and denominator by same variable or same number, or we can divide both numerator and denominator by same number or same variable .
So if we multiply both numerator and denominator by 2, we will get
[tex]\frac{7*2}{8*2} = \frac{14}{16}[/tex]
Caroline is saving up to buy a new video game .she already has $45 and can save an additional $9 per week using money from her after-school job how much total money you would Caroline have after 9 weeks of saving? also write an expression that represents the amount of money Caroline would have saved in W weeks .
A basketball game court is 94 feet long and 50 feet wide. Ryan used long steps to estimate the length of the court as 93 feet and width 48 feet. What is the percent error of ryan's measured area round your answer to the nearest hundred.
The percent error of Ryan's measured area is 0.04%.
How to calculate the percent error?To calculate the percent error of Ryan's measured area, you need to subtract his measurement from the actual value and divide that by the actual value, and then multiply by 100 to express the result as a percentage.
First, find the difference between the actual value and Ryan's measurement: 94 feet - 93 feet = 1 foot for the length, and 50 feet - 48 feet = 2 feet for the width.
Then, multiply these values to find the difference in the area: 1 foot × 2 feet = 2 square feet.
Then, divide the difference in the area by the actual area and multiply by 100 to express the result as a percentage:
(2 square feet / (94 feet × 50 feet)) × 100 = 0.04255%.
Rounded to the nearest hundred, the percent error is 0.04%.
Learn more about the percent error here :
brainly.com/question/3105259
#SPJ2
what is the measure of angle c
Answer: D+<B=180
x+24+x+10=180sum of opposite angle of quadrilateral is 180
2x=180-34
x=146/2=73
again
<A+<C=180sum of opposite angle of quadrilateral is 180
x+15+<C=180
73+15+<C=180
<C=180-88=92° is your answer
Cold antoje help me answering this please :).
Fake answer will be reported.
Answer:
158.1
Step-by-step explanation:
Distance is the square root of (x1-x2)^2+(y1-y2)^2
square root of (-4-146)^2+(2-52)^2
square root of 150^2+50^2
square root of 22500+2500
square root of 25000
50sqrt10
Rounding is 158.1
Consider the following expression.
4x4y+4y3
Identify the degree.
Answer:
Consider the following expression: 3x. 2. +7x−2−4x. It can also come as 16xy+4y
=3.
[tex]3x + 2x + 90 = 180[/tex]
what is the value of x??
Answer:
18
Step-by-step explanation:
5x+90=180
5x=90
x=18
Can i get brainliest?
Hi there!
[tex]\large\boxed{x = 18}[/tex]
3x + 2x + 90 = 180
Begin by combining like terms:
5x + 90 = 180
Subtract 90 from both sides to isolate for x:
5x + 90 - 90 = 180 - 90
5x = 90
Divide both sides by 5 to further isolate:
5x/5 = 90/5
x = 18.
Find the distance from the house to the street
I need an answer ASAP.
Which tiles should be added to the model below to make zero?
DOOOOO
6 negative tiles
6 positive tiles
3 negative tiles and 3 positive tiles
6 negative tiles and 6 positive tiles
Find an equation for each line using Y=mX+b Plzzz help!
Answer:
i believe that all of them are right, if they are not please correct me
Step-by-step explanation:
m= y= 2x +4
p= y= 1x- 1
n= y= -4x
L= y= 0x+ 4
hope this helps!
6. the quotient of kand 14
Answer:
[tex]Q = \frac{k}{14}[/tex]
Step-by-step explanation:
Given
k and 14
Required
Determine the quotient
Quotient implies that we divide k by 14.
So, the quotient (Q) of k and 14 is:
[tex]Q = \frac{k}{14}[/tex]
Amo has three times as many marbles as
Effah. Amo gives Effah 15 marbles, and
Then Effah has twice as many as Amo.
How many had each as first?
Step-by-step explanation:
amo tenia 9 canicas y efhha 3
WILL MARK BRAINLEIST IF RIGHT
Type the correct answer in the box. Use numerals instead of words. Enter your answer as a fraction in simplest form, using / for the fraction bar.
A high school athlete has been offered football and track and field scholarships to multiple universities. For football, he has 3 offers in Alabama, 3 in North Carolina, and 2 in Florida. For track and field, he has 4 offers in Florida, 5 in Texas, and 4 in California.
The probability that he chooses to play football in North Carolina is______.
outside the box around each page or on blank pages. ... You may ask for more answer paper, graph paper and tracing paper. ... g as a fraction of 3 kg. Give your answer in its simplest form. [2 marks]. Answer ... 10 (a) Which two properties does the number 4 have? ... 10 (c) Write down a number with three of the properties.
answer: 3/8
all of the football scholarships added together is 8 and he has 3 offers from north carolina so 3/8
3/4 / 3/5 divided. write your answer in simplest form or as a mixed number in simplest
Answer: 5/4
Step-by-step explanation:
do the keep change flip method
then it will be 3/4*5/3 which then equals 15/12 after that you would divide by 3 cause it is the only number that would go in evenly then the answer will be 5/4 in the simplest form
Find 1 2/3 + (-2 1/2)
WILL GIVE BRAINLIEST ! NEED ANSWER ASAP !!
can someone tell me what the range and asymptote is ? can’t find answers anywhere :’|
An art teacher shares 24 crayons equally among 5 students. The number of crayons that each student gets lies between what two whole numbers? 4 and 5 6 and 7 1 and 2 3 and 4
Answer: 4 and 5
Step-by-step explanation: 24 divided by 5 is 4.8. 4.8 is between 4 and 5. Hope this helps :)
Answer:
Step-by-step explanation:
One number is four more than four times another. If their sum is decreased by six, the result is thirteen. Find the numbers.
The smaller of the numbers is ____and the larger is ____.
ayuden plis son comparasiones en español plis
Answer:
345.65
80.31
378.08
567.30
9.78
345.57
345.21
56.86
79.30
56.68
Step-by-step explanation:
345.65
80.31
378.08
567.30
9.78
345.57
345.21
56.86
79.30
56.68