The table shows the derivation of cos(2x). Select the
correct reason for each step.
Answers
Answer:
Reason 1 is: Addition
Reason 2 is: Sine Sum Identity
Reason 3 is: Simplify
Step-by-step explanation:
just did it on edge
Answer:
1: Addition
2: Cosine Sum Identity
3: Simplify
Step-by-step explanation:
Related Questions
determine the value of x (put number value)
Answers
Answer:
x = 8
Step-by-step explanation:
Alternate Interior angles are equal to each other;
8x - 4 = 60
Add 4 to both sides;
8x = 64
Divide both sides by 8;
x = 8
The circle has a radius of 11 cm. What is the area of the shaded sector? Use 3.14 for π, and round your answer to the nearest tenth.
What is the approximate area of the shaded sector?
23.0 cm2
126.7 cm2
253.3 cm2
379.9 cm2
Answers
Answer:
253 or c
Step-by-step explanation:
which two perfect squares does 10 fall between
Answers
Answer: 9 and 16.
Step-by-step explanation: The two closets squares to 10 would be the square of 3 (9), and the square of 4 (16)
I'll give brainliest to the correct answer. Here are some answer choices:
A) y=10.5, ST=52.2, TU=52.5
B) y=3, ST=15, TU=15
C) y=5, ST=25, TU=21
Answers
Answer:
B
Step-by-step explanation:
Find the measure of angle T. Show your work.
Answers
Answer:
Angle T = 39
Step-by-step explanation:
Triangle WXY is the same as triangle VTU
Therefore the angles are the same as well so because angle T and angle X are equal they both have the same value
what is 5.589 x 10^6 writen in standard form
Answers
Answer:
5,589,000
Step-by-step explanation:
Your favorite electronics store is having a 30% off sale on all of their digital cameras. The special digital camera that you have been hoping to purchase was originally priced at $145. What is the new, lower price on that camera?
Answers
$145 - $43.50 = $101.50
Answer : $101.50
There are less than 200 apples in a box. It is known that 2, 3, 4, 5, or 6 kids can share these apples evenly. How many apples can be in that box? There is a lot of answers
Answers
Answer:
1200
Step-by-step explanation:
6×200=1200ans...
Answer:
60, 120, 180
Step-by-step explanation:
The lowest common multiple of 2, 3, 4, 5, and 6 is 60. The box could contain any multiple of 60 that is less than 200. 60 apples. ... The answer can be any number 1–199, if there are no preconditions about slicing up a 'remainder' apple to split amongst the kids.
If y= 20when x=8, what is the value of x when y = -2
Answers
Answer:
x = -0.8
Step-by-step explanation:
-10/-2 = 20
-10/8 = -0.8
Please help will brainlist
Answers
Answer:
11. Option B
12. Option C
13. Option A
Step-by-step explanation:
Which of the following tables represents a proportional relationship?
A.
x 3 4 5 6
y 6 9 12 18
B.
x 3 6 7 8
y 9 12 15 18
C.
x 3 6 9 15
y 9 18 27 36
D.
x 3 6 9 12
y 9 18 27 36
Answers
Answer:
D
Step-by-step explanation:
x 3 6 9 12
y 9 18 27 36
hope that help
Select the expression equivalent to (8c−5)−(6c+4).
Answers
Put 8 into 6 and 4
48c^2+24
Put -5 into 6 and 4
-30c-20
Put those together
48c^2+24=-30c-20
Simplify
48c^2+24=-30c-20
-24. -24
48c^2=-30c-44
+30c. +30c
78c^3=-44
———- ——
-44. -44
C= 26
lizards can eat 45 ants per minute. How long would it take to eat 1,080 ants?
Answers
Answer: 24 minutes!
Step-by-step explanation: As mentioned, it can eat 45 ants per minute, How long would it take to eat 1,080 ants?
It's simple, just divide 1080 by 45 and when you divide it, the answer is 24!
The endpoints of a side of rectangle ABCD in the coordinate plane are at A(2, 7) and
B(4, 1). Find the equation of the line that contains the given segment.
The line segment is AB.
The equation is y =
Answers
Answer:
ole los caracoles con mi amiga
Step-by-step explanation:
jeja
Evaluate 3D4C+ 4BCE in base 16
Answers
In base 16, the numbers 10-15 are denoted by the letters a-f. So in the units place, we have
c₁₆ + e₁₆ = 12 + 14 = 16 + 10 = 1a₁₆
Carry the 1 to the next place value:
4₁₆ + c₁₆ + 1₁₆ = 4 + 12 + 1 = 16 + 1 = 11₁₆
Carry the 1:
d₁₆ + b₁₆ + 1₁₆ = 13 + 11 + 1 = 16 + 9 = 19₁₆
Carry the 1:
3₁₆ + 4₁₆ + 1₁₆ = 3 + 4 + 1 = 8₁₆
So, we end up with
3d4c₁₆ + 4bce₁₆ = 891a₁₆
Which of these is equal to 9 - 4?
Answers
Answer:
5
Step-by-step explanation:
...yeah
someone help :(( rlly depressed rn so pls help !!
Answers
Answer:
Im pretty sure it is A because sometimes, or mostly, when a number is behind the minus sign, it is a negative number. The other choices dont make sense to me, and A seems pretty accurate!
Step-by-step explanation:
hope it helps :)
It costs $2.50
to rent bowling shoes. Each game costs $2.25
. You have $9.25
. Write and solve an equation to find how many games x
you can bowl.
Answers
Answer:
$2.50 can be your constant because you will have to pay it once in order to bowl. $2.25 can be the coefficient of the variable. You can form the equation now. y is total price while x is how many games you can bowl.
Now that you have the equation, you can solve. Knowing that you have $9.25, just plug in that value in the y
Now, just simply solve for x and you will find the answer to the second part of the question. You will get x=3
Step-by-step explanation:
Help meeeee plz:)
1.) is -100 an integer
2.) is 17/5 an integer
3.)-44.74 and integer
4.) is -36/9 and integer
5.)12/4 and integer
Answers
Step-by-step explanation:
1) yes
2) no
3) no
4) no
5) no
integer is any number that is not in fraction form / has decimal places
If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!
1.) is -100 an integer
2.) is 17/5 an integer
3.)-44.74 and integer
4.) is -36/9 and integer
5.)12/4 and integer
please answer the questions 20 points
Answers
2. when counting the number of atoms in the formula, you multiply each component by the coefficient
3. 72 is the total atoms
A farmer was counting his chickens and dogs. He counted a total of 60 legs. If the amount of chickens he has is four times the amount of dogs he has, how many chickens does he have?
Answers
Answer:
he has 20 chickens
Step-by-step explanation:
i was testing with it. 20 dog legs divided by 4 (since dogs have 4 legs) equals 5. 5 times 4 (since 4 times the amount of dogs) is 20. then to check, 20 times 2 (since chickens have 2 feet) is 40. 20 dog legs plus 40 chicken legs. makes sense. again, 20 chickens.
PLEASE HELPPP
ONG ILL GIVE YOU ALL MYPOINTS JUST HELP
Answers
Answer:
the answer is 13 :)
Step-by-step explanation:
The instructions on your aspirin bottle say take two 200-milligram aspirin. How many grams is the total dose?
Answers
Answer:
[see below]
Step-by-step explanation:
There are 0.001 grams in a milligram. (1,000 milligrams in a gram.)
[tex]\frac{200}{1000}=0.2[/tex]
The total dose should be 0.2 grams.
Hope this helps.
3. Find the difference.
a. 82-(-14)
b. -18- (-55)
C. -17-44
d. 70- (-101)
Answers
Answer:
A. -68
B. 37
C. -61
D. 171
Step-by-step explanation:
Rule for A, B, D: 2 negatives is the same as addition
(how I did C: add them together then add the negative)
A. -68
B. 37
C. -61
D. 171
Step-by-step explanation:
Rule for A, B, D: 2 negatives is the same as addition
(how I did C: add them together then add the negative)
during migration , a butterfly can travel 30 miles in 1 hour . which graph best represents y , the number of miles a butterfly can travel in x hours ?
Answers
please help this is my last equation on my assignment and its due at 5... -1.2x = 12
Answers
What’s that answer for
9xr -8
80
Answers
Hey there!
This is a transversal with same-side interior angles. Same-side interior angles always add up to 180. So you add 9x-8 plus 80, which should equal 180. You then have your equation and then solve for x.
Let me know if you need more help. We just finished transversals in Geometry.
Pamela is 8 years older than Jiri. The sum of their ages is 62. What is Jiri's age?
Answers
Answer:
dude how are you supposed to figure this out????
Jiri age is 23
Step-by-step explanation:
WILL MARK BRAINLIEST! PLEASE HELP!
Write 206 in base 7
Answers
Answer:
413_7
Step-by-step explanation:
Convert the following to base 7:
206_10
Hint: | Starting with zero, raise 7 to increasingly larger integer powers until the result exceeds 206.
Determine the powers of 7 that will be used as the places of the digits in the base-7 representation of 206:
Power | \!\(\*SuperscriptBox[\(Base\), \(Power\)]\) | Place value
3 | 7^3 | 343
2 | 7^2 | 49
1 | 7^1 | 7
0 | 7^0 | 1
Hint: | The powers of 7 (in ascending order) are associated with the places from right to left.
Label each place of the base-7 representation of 206 with the appropriate power of 7:
Place | | | 7^2 | 7^1 | 7^0 |
| | | ↓ | ↓ | ↓ |
206_10 | = | ( | __ | __ | __ | )_(_7)
Hint: | Divide 206 by 7 and find the remainder. The remainder is the first digit from the right.
Determine the value of the first digit from the right of 206 in base 7:
206/7=29 with remainder 3
Place | | | 7^2 | 7^1 | 7^0 |
| | | ↓ | ↓ | ↓ |
206_10 | = | ( | __ | __ | 3 | )_(_7)
Hint: | Divide the whole number part of the previous quotient, 29, by 7 and find the remainder. The remainder is the next digit.
Determine the value of the next digit from the right of 206 in base 7:
29/7=4 with remainder 1
Place | | | 7^2 | 7^1 | 7^0 |
| | | ↓ | ↓ | ↓ |
206_10 | = | ( | __ | 1 | 3 | )_(_7)
Hint: | Divide the whole number part of the previous quotient, 4, by 7 and find the remainder. The remainder is the last digit.
Determine the value of the last remaining digit of 206 in base 7:
4/7=0 with remainder 4
Place | | | 7^2 | 7^1 | 7^0 |
| | | ↓ | ↓ | ↓ |
206_10 | = | ( | 4 | 1 | 3 | )_(_7)
Hint: | Express 206_10 in base 7.
The number 206_10 is equivalent to 413_7 in base 7.
Answer: 206_10 =413_7
Does the table show a linear or nonlinear function?
Answers
Answer:
I don't see anything, but Linear has the word line in it. That means that it has to be a line. Non-Linear has the words no line in it. Hope this helps!
Step-by-step explanation: