If cos(x) = 3/4 and tan(x) < 0, what is cos(2x)
Answers
Answer:
C. 1/8
Step-by-step explanation:
on edge
Answer:
1/8
Step-by-step explanation:
Related Questions
The measure of one side of a square is (s - 3) inches long. Which pair of expressions both represent the perimeter of this square?
a) 2s + 3 and (s + 3) + (s + 3)
b)2(s + 3) and (s + 3) + (s + 3)
c) 4s + 3 and (s + 3) + (s + 3) + (s + 3) + (s + 3)
d) 4( + 3) and (s + 3) + (s + 3) + (s + 3) + (s + 3)
Answers
The measure of one side of a square is (s + 3) inches long. The pair of expressions which both represents the perimeter of this square is:
d) 4( s + 3 ) and (s + 3) + (s + 3) + (s + 3) + (s + 3)
The image of the point (7,-4) under a translation is (12,-5). Find the coordinates
of the image of the point (-8, -3) under the same translation.
Answers
Which of the following is an example of discrete data?
Temperature (in Fahrenheit) of teh Pacific Ocean at Huntington Beach
Lifetime (in hours) of 35 fluorescent light bulbs
Amount of caffeine (in milligrams) for 8 ounces of popular drinks
Number of hamburgers sold each day at Hamburger Mary's
Weight of dogs (in pounds) at the Seal Beach Animal Care Center
Answers
Answer:
Number of hamburgers sold each day at Hamburger Mary's because it's counting a number of something, not measuring a quantity with respect to a variable like temperature or weight. If this is still unclear let me know what I need to clarify. Have a nice night.
what is the solution of inequality -6+2p+3 >7
Answers
Group like terms first - (2P -6+3 > 7)
Add/subtract the numbers - ( -6+3 equals -3)
2P -3 > 7
Add 3 to both sides (2P -3+3 > 7 + 3)
Simplify (2p>10)
Divide both sides by 2 (2p/2 > 10/2)
P>5
A phone has 5/8 of its battery charge left. If the battery loses 3/8 of its full charhe every hour, how many hours will tbe battery last?
Answers
Answer:
0.25 Hours
Step-by-step explanation:
First subtract 5/8 by 3/8 your answer will then be 2/8 the divide 2/8 to make it into a decimal and your answer will be 0.25
Hope this solved your question
The third term of a geometric progression is 63/4 and the sixth term is 1701/32. Find the sum of the first 12 terms of the sequence.
Answers
Answer:
The sum of the first 12 terms of the sequence is 2703.673096
Step-by-step explanation:
The nth term of a geometric progression is a(n) = [tex]ar^{n-1}[/tex], where
a is the first termr is the common ratio between each two consecutive termsThe sum of n terms of the geometric progression is s(n) = [tex]\frac{a(r^{n}-1)}{r-1}[/tex]
∵ The third term of a geometric progression is [tex]\frac{63}{4}[/tex]
∴ a(3) = [tex]\frac{63}{4}[/tex]
∵ a(3) = ar²
→ Equate its two right sides
∴ ar² = [tex]\frac{63}{4}[/tex] ⇒ (1)
∵ The sixth term is [tex]\frac{1701}{32}[/tex]
∴ a(6) = [tex]\frac{1701}{32}[/tex]
∵ a(6) = a[tex]r^{5}[/tex]
→ Equate its two right sides
∴ a[tex]r^{5}[/tex] = [tex]\frac{1701}{32}[/tex] ⇒ (2)
→ Divide (2) by (1)
∴ r³ = [tex]\frac{27}{8}[/tex]
→ Take ∛ for both sides
∴ r = [tex]\frac{3}{2}[/tex] = 1.5
→ Substitute the value of r in (1) to find a
∵ a(1.5) = [tex]\frac{63}{4}[/tex]
∴ 1.5a = 15.75
→ Divide both sides by 1.5
∴ a = 10.5
→ Let us find the sum of the first 12 terms
∵ n = 12, a = 10.5, and r = 1.5
→ Substitute them in the rule of the sum above
∵ s(12) = [tex]\frac{10.5(1.5^{12}-1)}{1.5-1}[/tex]
∴ s(12) = 2703.673096
∴ The sum of the first 12 terms of the sequence is 2703.673096
simiply the following (-4)⁶÷(-4)³.i will mark as brainlest
Answers
(f- g)(x) =
what is the answer?
Answers
Answer:
(f- g)(x) =fx−gx
Step-by-step explanation:
The last answer choice is 53 please answer
Answers
Answer:
Step-by-step explanation:
Chen is 44 inches tall
Target is having black Friday deals Alma enLG 50 TV cost $330 and it is on sale for 30% off what is the sale price of the TB after the discount in excluding tax
Answers
algebra 1- pls help! (I messed up previous question so I’m retyping it-)
Solve for x
-8x+14 ≥60 OR -4x+50 -2
B.) x ≤ -23/4
C.) x>-2
D.) There are no solutions
Answers
can someone help me like ion get it
Answers
Answer:
D is the correct answer.
It would be the same answer if you were to multiply x by 6.
I hope I helped you some :))
15 quarts=_cups how many cups???
Answers
STEP
STEP
STEP
what is 2 x 8 x 10987
Answers
Answer:
175792
Step-by-step explanation:
8 x 2 = 16
16 x 10987 = 175792
There are 3 boys for every 4 girls in a class. If there are 16 girls, how many boys are there?
Answers
If there are 3 boys for every 4 girls in a class, there would be 12 boys because 16 ÷4 us 4, and 4×3 is 13.
f(x)= x^2. what is g(x)?
Answers
Answer:
A
Step-by-step explanation:
[tex]f(x) ~ \mathsf{has ~(1,1)~ in ~it, ~so ~the ~answer~ is ~ \boxed{A}}[/tex].
Suppose scientists compared the wind speeds and barometric pressure readings of two severe storms over the Atlantic Ocean. For one of the storms, the barometric pressure was 1,000 mb (millibars), and the maximum wind speed was 100 kmh (kilometers per hour). The second had a barometric pressure of 960 mb and maximum wind speeds of 180 kmh. (a) Develop a rule that you could use to predict the wind speed given any barometric pressure.
Answers
Answer:
So i found the teacher notes after hours of looking here are the exact answers so i would recommend changing the wording.
Part A: Ordered pairs in the form (mb, kmh): (1,000, 100) and (960,180) Let X be the barometric pressure and Y be the wind speed.
Slope= (180-100)
---------------- = -2
(960-1000)
Formula: y=-2(x-1000)+100
Part B: y=-2(980-1000)+100=140
140 kmh is reasonable. Because 980 mb is halfway between 960 mb and 1000 mb, we should expect a wind speed halfway between 180 kmh and 100 kmh.
Part C: The wind speed intercept is (0,2100) [or (2100,0) if written that way.] This means that when brometric pressure is 0 mb, then the wind speed would be 2100 kmh. However in the context of real weather, this is an impossible situation.
Part D: The slope means that every decrease of 2 kmh in wind speed corresponds to a 1 mb increase in barometric pressure.
hoped this helped :)
Help me pleaseeeeeeeeeeeeeeeeeeeee
Answers
Answer:
its the 4/7x 28
Step-by-step explanation:
you count by 2 and then you look for the numbers
Answer:
THE OTHER PERSON IS WRONG DO NOT LISTEN YOUNG ONE
Step-by-step explanation:
THE ANSWER IS D, 2/7 x 28
what is the sum of 3 8 added to 1 3
Answers
explanation:
Answer:
37
Step-by-step explanation:
First multiply 3 by 8 (24)
then add 13
GIVING BRAINLIEST I ONLY NEED A SENTENCE!
During a chemical reaction, how do the substances that form differ from the substances that react?
Answers
Answer:
The substances that form are a combination of the two reactants.
Step-by-step explanation:
Use the coefficient of variation to determine
which data set varies the most.
on
Data Set 1: 2 = 12 and s = = 7
Data Set 2: 2
0.12 and s
= 0.3.
Data Set 1 CV ~
% (Round to the
nearest percent)
Data Set 2 CV =
%
Answers
Answer:
Dataset 2
Step-by-step explanation:
The Coefficient of variation is the ratio of the standard deviation and the population mean.
Data Set 1: 2 = 12 and s = = 7
Data Set 2: 2
0.12 and s
= 0.3.
Coefficient of variation = (standard deviation / mean) * 100%
Dataset 1:
Standard deviation = 7 ; mean = 12
Coefficient of variation = (7 / 12 ) * 100% = 0.5833 = 58%
Dataset 2:
Standard deviation = 0.3 ; mean = 0.12
Coefficient of variation = (0.3 / 0.12) * 100% = 2.5 * 100% = 250
Hence dataset 2 varies the most with a greater value of variation Coefficient.
Trevor recorded the amount of material collected for recycling at his school for 5
weeks. Trevor calculated a line of best fit for the data to model the amount collected, y,
as a function of time, x. He found the correlation coefficient to be between 0.7 and -1.
Which statement BEST describes the correlation among the data?
A. There is a weak correlation in which the amount collected increased as time increased.
B. There is a weak correlation in which the amount collected decreased as time increased.
C. There is a strong correlation in which the amount collected increased as time increased.
D. There is a strong correlation in which the amount collected decreased as time increased.
Answers
The statement that best describes the correlation among the data is this: D. There is a strong correlation in which the amount collected decreased as time increased.
How to determine the best sentenceIn determining the coefficient relationship between two variables, it is important to note that a coefficient 0f 0.7 and above is considered strong. In the given data, we see that the correlation coefficient was between 0.7 and -1.
This means that there is strong evidence to indicate that the amount of material collected decreased as time went by.
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Write 2^60 as an exponent with a base of: b 16
Answers
Answer:
im pretty sure you tried to say
Write 2^60 as an exponent with a base of:
a) 8
b) 16
c) 32
the answer is :
8^20 (eight to the twentieth power)
[tex]2^{60}[/tex] is equivalent to [tex]16^{15}[/tex].
We can rewrite the expression by means of the following power property, that is to say:
[tex]a^{b\cdot c} = (a^{b})^c[/tex], [tex]a, b, c\in \mathbb{N}[/tex] (1)
Where [tex]a[/tex] and [tex]a^{b}[/tex] are bases.
If we know that [tex]a = 2[/tex] and [tex]b\cdot c = 60[/tex], then the equivalent expression is:
[tex]2^{60} = 2^{4\cdot 15} = (2^{4})^{15} = 16^{15}[/tex]
Hence, [tex]2^{60}[/tex] is equivalent to [tex]16^{15}[/tex].
We kindly invite to check this question on power operations: https://brainly.com/question/18112557
Find x AND the length of each side if ABC is an isosceles triangle with AB = BC . (Answers Rouen to the nearest tenth if needed)
Answers
Answer:
x = 7
AB = 7
BC = 7
Step-by-step explanation:
AB = BC cuz it's an isosceles triangle
In the given isosceles triangle x is 7 units and AB ≅ BC is also of 7 units.
What is a triangle?A triangle is a three-sided closed-plane figure formed by joining three noncolinear points. Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.
As the triangle has two equal sides we can equate two expressions to find x.
∴ 2x - 7 = 4x - 21.
- 2x = - 14.
2x = 14.
x = 7.
AB = 2(7) - 7.
AB = 14 - 7.
AB = 7.
BC will also be of 7 units as AB ≅ BC.
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Read the proof.
Given: AB ∥ DE
Prove: △ABC ~ △EDC
Triangles A B C and E D C connect at point C. Sides A B and D E are parallel.
Statement Reason
1. AB ∥ DE 1. given
2. ∠ACB and ∠ECD are vert. ∠s 2. definition of vertical angles
3. ∠ACB ≅ ∠DCE 3. vertical angles are congruent
4. ∠BDE and ∠DBA are alt. int. ∠s 4. definition of alternate interior angles
5. ∠BDE ≅ ∠DBA 5. alternate interior angles are congruent
6. △ABC ~ △EDC 6. ?
AA similarity theorem
ASA similarity theorem
AAS similarity theorem
SAS similarity theorem
Answers
Answer:
Its AA similarity theorem
Step-by-step explanation:
correct on edge 2021
The triangles ABC and EDC are similar by AA similarity theorem.
What is similarity in triangles?Two triangles are said to be similar if their corresponding sides are in equal ratio and corresponding angles are congruent.
Given is a proof of showing △ ABC ~ △ EDC
The proof is as follows :-
Statement Reason
AB ∥ DE Given
∠ ACB = ∠ ECD definition of vertical angles
∠ BDE ≅ ∠ DBA alternate interior angles are congruent
△ ABC ~ △ EDC AA similarity theorem
AA similarity theorem :-
AA similarity theorem states that when two corresponding angles of two triangles are found congruent then the triangles are similar by AA similarity theorem.
Hence, the missing reason is AA similarity theorem.
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m(x)=x2+4x n(x)=x
(mn)(x)=
A.) x2+4x(x)
B.) (x2+4x)(x)
Answers
Answer:
b is correct
Step-by-step explanation:
The product of the functions M(x) and n(x) is x³+ 4x².
To find the product of the two functions, M(x) = x² + 4x and n(x) = x, we need to multiply them together.
So, (mn)(x) = M(x) × n(x)
Substituting the given functions:
(mn)(x) = (x² + 4x) × x
Now, we can simplify the expression by applying the distributive property of multiplication:
(mn)(x) = x × x² + x × 4x
Simplifying further:
(mn)(x) = x³ + 4x²
Therefore, the product of the functions M(x) and n(x) is x³+ 4x².
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Which values of a, b, and c correctly represent the answer in simplest form? 3 =a O a=38.0= 14.0=1 a=1.0= 14.C = 38 O a= 1.5=7.C= 19 O a = 19.0= 7.0= 1
Answers
Answer:
The answer could be A) or D) because the zero acts as a place holder. Its a little easier to derive it if you have a bigger decimal
Step-by-step explanation:
I need help with question 7
Answers
Hello :) pls help thank you very much!
......................
Answers
Answer:
Given: That's exactly what we've been givenCombine Like TermsSubtraction property of equality: We subtract 12 from both sides of the equation.A company can produce 60 million chocolate candies within a 24-hour period.
Part A
Using this rate, create an equation to represent the number of chocolate candies,
c
, in millions, the company can produce in
h
hours.
Answers
Answer:
f(x)=60c * 24h
Step-by-step explanation:
Hope this helped!