Answer:
cos6x.
Step-by-step explanation:
We use the identity
cosAcosB - sinAsinB = cos(A+B)
so cos5xcosx - sin5xsinx = cos(5x + x)
= cos6x.
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Answer:
C.................is the answer
Answer:
a)=10m
b)(x+1)
c)=(27x+9)
d=(3x+1)
In algebra (grade 7) :-
what does + and - make?
what does + and + make?
what does - and + make?
what does - and - make?
What is the domain of the function y = [tex]\sqrt{x}[/tex]
A)Negative infinity less-than x less-than infinity
B)0 less-than x less-than infinity
C)0 less-than-or-equal-to x less-than infinity
D)1 less-than-or-equal-to x less-than infinity
Answer:
C is the answer
Step-by-step explanation:
The domain can't be minus. That's the only stipulation. It can be equal to 0 or anything larger than 0. It just can't go into the minus numbers.
0≤x<infinity.
C
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find the length of PQ
[tex]\\ \rm\longmapsto L=\dfrac{\Theta}{180}\times \pi r[/tex]
[tex]\\ \rm\longmapsto PQ=\dfrac{135}{180}\times 3.14(12)[/tex]
[tex]\\ \rm\longmapsto PQ=\dfrac{3}{4}\times 37.68[/tex]
[tex]\\ \rm\longmapsto PQ=\dfrac{113.04}{4}[/tex]
[tex]\\ \rm\longmapsto PQ=28.3[/tex]
What set of numbers best describes the amount of money in a bank account?
a. rational
b. irrational
c. integers
d. whole numbers
NEED HELP ASAP
giving brainly
Answer:
A&C
Step-by-step explanation:
They are negative and even and they are not positive and even too.
Answer:
A
Step-by-step explanation:
Technically A and C are correct but we are dealing with only negative even values. A non-positive integer is any negative number or zero but we don't have that value so it makes more sense to choose A than C. B is incorrect because a whole number can't include a negative number, a fraction, or a decimal. D is also incorrect because a non-negative integer is a positive number which we don't have in the set.
Best of Luck!
Find the value of the following question
Step-by-step explanation:
[(-¾)`²]² =
[ (-4/3)²]² =
[ 16/9]² = 256 / 81
Answer:
the req answer is 256/81
plz answer it plz
step by step plz
Answer:
answer is subtract the 180-120=80
Answer:
Y = 60[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]
Pls help how do I solve this?
Answer:
area is just multiplication of sides so..
(4.2x^2 - 3xy) (5)
= 21 x^2 - 15 xy
doneeeeee
(question 31) if arc mBC =120 and arc mAD =50 whatis the measure of angle DYC
===============================================================
Explanation:
First, let's calculate angle BYC. This is the angle formed by the chords that subtend the arcs mentioned. This angle faces or is aimed toward the direction of the arcs. To find this angle, we'll average the arc measures like so:
angle BYC = (arcAD + arcBC)/2
angle BYC = (50+120)/2
angle BYC = 170/2
angle BYC = 85 degrees
Then we'll use the idea that angles BYC and DYC are supplementary (aka they form a straight 180 degree angle)
angleBYC + angleDYC = 180
angleDYC = 180 - angleBYC
angleDYC = 180 - 85
angleDYC = 95 degrees
which is why the answer is choice D.
11. Make Sense and Persevere The sum of four
consecutive integers is –18. What is the greatest
of these integers?
Answer:
-3
Step-by-step explanation:
4n+ 6 = -18
4n=-24
n = -6
-6,-5,-4,-3
largest is -3
Answer:
[tex]\displaystyle -3[/tex]
Step-by-step explanation:
[tex]\displaystyle -18 = 6 + 4n → \frac{-24}{4} = \frac{4n}{4} \\ \\ -6 = n \\ \\ \\ -6, -5, -4, \boxed{-3}[/tex]
Hence, you have your answer.
I am joyous to assist you at any time.
"The difference between m and n."
Answer:
Step-by-step explanation:
They are diffrent values
Is the following number rational or irrational?
TV4
Choose 1 answer:
A
Rational
В
Irrational
Answer:
B irrational :]..............
Solve 29 – 3:= 5x + 5 for x.
Answer:
x=4.2
Step-by-step explanation:
29-3=5x+5
21=5x, x=21/5=4.2
A steel ball has a volume of 1500 cm.
The density of the ball is 95 g/cm'.
Find the mass of the ball in kg.
Answer:
95kg
Step-by-step explanation:
Mass÷Volume=Density
Therefore, Mass = Volume × Density
Mass = 1500 × 95
Mass = 95,000g
Since we were asked to find the mass in kg:
1000g = 1kg
Therefore, 95,000g = 95kg
Which of the following set of angles could be the measurements of a triangle
The source of this question is on learning farm 7th grade
Simplify: 6m2,2 – 3mn + 14mn + 10m²n2 + 9 O 27m2n2 + 9 16m?n? + 11mn + 9 16m4n" + 1lm?n? + 9 0 16mn+ 17mn + 9
Answer:
2nd one is the ans
16m*2n*2+11mn+9
6: A wooden rod is 4/5m
long .
Find the total length of 4 wooden rods.
Answer:
Proper: 3 and 1/5 Improper: 16/5
Step-by-step explanation:
4 times 4/5 = 16/5
5*3=15
16-15= 1
3 and 1/5
Estimate numbers 1-4 from the tens place value.
1. 89
2. 64
3. 985
4. 467
[tex]\huge\text{Hey there!}[/tex]
[tex]\huge\text{We are not sure what you want us to}\\\huge\text{round to so I will...}\huge\boxed{\downarrow}\\\\\\\huge\boxed{\mathsf{original \ number\rightarrow tens\rightarrow hundreds/thousands}}[/tex]
[tex]\huge\boxed{1.) \ \mathsf{89} \rightarrow \bold{90}\rightarrow\bf 100}}\\\huge\boxed{2.) \mathsf{\ 64\rightarrow \bold{6} \rightarrow \bf 100}}\\\huge\boxed{3.) \mathsf{ \ 985 \rightarrow \bold{990}\rightarrow \bf 1,000}}\\\huge\boxed{4.)\mathsf{\ 467\rightarrow\bold{470}\rightarrow \bf 500}}}[/tex]
[tex]\huge\textsf{Reminder: If you have \bf 0 - 4 you are going}\\\huge\textsf{\bf downward \& 5 - 9 you are going upward}[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\huge\boxed{\frak{Amphitrite1040:)}}[/tex]
0.5t + 0.25(t +16) =4 + 0.75t
Answer:
0.5t + 0.25(t +16) =4 + 0.75t
0.5t + 0.25t + 4 = 4 + 0.75t
0.5t+ 0.25t – 0.75 t = 4– 4
0.5t +0.25t–0.75t = 0 —> 0 = 0
I hope I helped you^_^
Answer: All Real Numbers or A.R.N
Step-by-step explanation:
Given
0.5t + 0.25 (t + 16) = 4 + 0.75t
Expand parentheses and apply the distributive property
0.5t + 0.25 · t + 0.25 · 16 = 4 + 0.75t
0.5t + 0.25t +4 = 4 + 0.75t
Combine like terms
0.75t + 4 = 4 + 0.75t
Subtract 0.75t on both sides
0.75t + 4 - 0.75t = 4 + 0.75t - 0.75t
4 = 4
Since both sides are left with the same term, this means any number would be able to make the equation true.
Therefore the answer would be All Real Numbers, or [tex]\boxed{A.R.N}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
HELLLPPP Multiply. Write your answer in scientific notation. 6 (2 x 10^)(1 x 10
Answer:
[tex](2 \times {10}^{4} )(1 \times 10 ^{6} ) \\ = 2 \times {10}^{10} [/tex]
I hope I helped you^_^
Answer:
2×10^10
Step-by-step explanation:
katya is 1/8 the height of a tree in a forest. olga is 1/8 the height of the same tree. who is taller?
Answer:
2/8 you plus it
Step-by-step explanation:
you should plus both
slove 3(n-4)+2(4n-5)=(n+2)
Answer:
n is 2.4
Step-by-step explanation:
[tex]3(n - 4) + 2(4n - 5) = (n + 2)[/tex]
open the brackets:
[tex](3n - 12) + (8n - 10) = (n + 2)[/tex]
collect like terms together:
[tex]3n + 8n - n = 2 + 12 + 10 [/tex]
factorise out n :
[tex]n(3 + 8 - 1) = 24 \\ 10n = 24 [/tex]
divide all sides by 10 :
[tex] \frac{10n}{10} = \frac{24}{10} \\ \\ n = 2.4[/tex]
find the value for x
Answer:
112/12
Step-by-step explanation:
angles equal bcz corresponding angles
so
12x-8=104
12x=112
x=112/12
Please help me! I need details. I will appreciate it very much and I will mark Brainllist! Please! ASAP
Answer:
(1, 4), (2, 8), (3, 12)
Step-by-step explanation:
The ratio if the number if books to the cost in dollars is 1 : 4
To plot on a coordinate grid, we first look at the horizontal direction (x-axis)
Take the number of books to be values of the x-coordinate.
Start at the origin and travel the necessary distance to the left or the right then move up or down in the vertical direction to mark the y-coordinate.
The corresponding cost to be the values of the y-coordinate. Mark or plot at the intersection of the two numbers.
What is the Standard Deviation of the following set of data?
14, 22, 18, 12, 14, 8, 4, 12, 32, 12
Answer:
34
Step-by-step explanation:
34 because i beleive so
8/9 divided by 2/5..
The tape diagram represents an equation.
Write an equation to represent the image.
Answer:
m + 1/4 = 2/3
Step-by-step explanation:
Since they are equal lengths set them = to each other.
2/3 - 1/4= 5/12; 1/4 + m = 2/3
We know it's subtraction as the tape diagram above has 2 pieces, both smaller than the whole tape diagram below it. Also, knowing it has 2 pieces and that 1/4 is small than 2/3 help us know that it's subtraction.
I hope I've helped!
¿Alguien sabe como realizarlo?
Solve the simultaneous equations. to. 3 significant figures.
3x^2 + y^2 = 20
2x + y =3
Answer:
check explanation
Step-by-step explanation:
in eqn 2,
y = 3 - 2x
substitute for it in eqn 1
3x² + y² = 20
3x² + (3 - 2x)² = 20
3x² + 9 - 12x + 4x² = 20
Group like terms;
3x² + 4x² - 12x = 20 -9
7x² - 12x = 11
x(7x - 12) = 11
x = 11,
OR
7x - 12 = 11
7x = 11 + 12
7x = 23
x = 23/7
x = 3.286
To get y, substitute for x in eqn 2
WHEN x = 11,
y = 3 - 2(11)
y = 3 - 22
y = -19
WHEN x = 3.286
y = 3 - 2(3.386)
y = -3.772