what is the value of cos2 31 degrees-sin2 59 degrees
Answers
Answer:
hope this will help you..
Answer:
0
Step-by-step explanation:
Using the cofunction identity
sin x = cos(90 - x), then
cos²31° - sin²59°
= sin²(90 - 31)° - sin²59°
= sin²59° - sin²59°
= 0
Related Questions
The cost to produce t shirts for the Mock Trial team to sell for a fundraiswer is $35 for the design and $5.50 for each t shirt. The team members plan to sell the t shirts for $10 each. What is the break even point ( number of t shirts and cost at the break even point)?
Answers
Answer:
9 t-shirts are needed to be sold to break even
What is the image point of (0,9) after a translation left 1 unit and down 2 units?
Answers
Answer:-1,7
Step-by-step explanation:
The point after translation left 1 unit and down 2 units will be (-1, 7)
What is translation?A translation is a geometric transformation that moves every point of a figure, shape or space by the same distance in a given direction. A translation can also be interpreted as the addition of a constant vector to every point, or as shifting the origin of the coordinate system.
Given that, a point (0,9) is being translated left 1 unit and down 2 units
We know that, translation rule for, left and down is,
(x, y) = (x-a), (y-b) where a and b are units by which points are being translated.
Therefore,
(0, 9) = (0-1, 9-2)
= (-1, 7)
Hence, the point after translation left 1 unit and down 2 units will be (-1, 7)
Learn more about translation, click;
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write the polynomial in standard form 3-3m+4m^{2} -1/2m^{6}
Answers
Answer:
[tex]3-3m+4m^2-\frac{1}{2} m^6[/tex]
Step-by-step explanation:
jess makes salad dressing by mixing lemon juice and olive oil in the ratio 2:5 by volumr.me. shes uses 0.5 litres of lemon juice. work out how much olive oil she uses to make the salad dressing.
Answers
Answer:
its 2.5 liters of olive oil because .5 times 5 equals 2.5 needed to satisfy ratio.
Given rectangle QUAD, if QU = 13, find DA.
Answers
Step-by-step explanation:
DA=13.................
Answer:
Da =13 as we know opp sides of rectangle are equal
Which of the purchases would be the least expensive? Purchase Amount of sale Sales tax rate A $150 5% B $145 7% C $140 8% D $135 9% purchase A purchase B purchase C purchase D
Answers
Answer:
It is d
Step-by-step explanation:
:)
Answer:
It is D
Step-by-step explanation:
Just took the test on edg
can someone help me please!!
Answers
Answer:
Step-by-step explanation:
∠2, ∠3, and ∠4
Answer:
5, 6, 1
Step-by-step explanation:
Interior mean on the inside
PLEASE QUICK:
Is the relation a function?
{(1, 3) (5,-2) (6, 0) (-4, 7) (1,9)]
No
Yes
Answers
Answer:
no
Step-by-step explanation:
there are 2 1's in that function
Write an equation for the line in slope-intercept form.
Answers
Plz answer question fast
Answers
Answer:
OSMOSIS AND GIVE ME BRAINLIIST
What is the vertex of the graph?
Answers
Answer:
The point (x, y) → (-5, 0) is the vertex of the graph.Step-by-step explanation:
As the given graph represents Parabola
As we know that Parabolas always contain the lowest point, or the highest point if any given parabola is upside-down. This lowest or highest point is the location where the parabola tends to change its direction and called the 'vertex'.Hence, from the given graph, we can easily determine that the parabola changes its direction at x = -5, and y = 0.
Therefore, the point (x, y) → (-5, 0) is the vertex of the graph.e an equation.
Question 1
A car travels 195 miles in 3 hours. Write an equation that
number of hours.
Answers
Answer:
y = 65x
Step-by-step explanation:
(2,-4) is reflected across the x-axis. what are the coordinates of its image?
Answers
Answer:
(2, 4)
Step-by-step explanation:
When you reflect/flip over an axis, negate value of the opposite of it. Fox the X axis, negate the y value.
Answer:
(2,4)
Step-by-step explanation:
Consider quadrilateral EFGH.
The slope of EF is .
Which statements are true? Check all that apply.
EH is parallel to FG.
EF is perpendicular to EH.
HG is neither parallel nor perpendicular to FG.
Quadrilateral EFGH is a rectangle because it is a parallelogram with four right angles.
Quadrilateral EFGH is a trapezoid because it has exactly one pair of parallel opposite sides.
Answers
(B) EF is perpendicular to EH.
Quadrilateral:A quadrilateral in geometry is a four-sided polygon with four sides and four corners (vertices). The Latin words Quadri, a variation of four, and latus, meaning "side," are the source of the name. In reference to other polygons, it is also known as a tetragon, from the Greek "tetra" for "four" and "gon" for "corner" or "angle" (e.g. pentagon). Since "gon" is an anagram for "angle," it is also known as a quadrangle or 4-angle. Display style "square ABCD" is sometimes used to indicate a quadrilateral with the vertices A, B, C, and D.Therefore, the correct option is (B) EF is perpendicular to EH.
Know more about quadrilaterals here:
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Answer:
B and C
Step-by-step explanation:
Does this graph represent a function? khan academy
Answers
Answer:
yes
Step-by-step explanation:
its a graph
Answer:
No
Step-by-step explanation:
It isn't a positive linear association nor a negative linear association. If you were to connect those lines, it would not be a linear function of any kind of association.
What is the slope of the line with the following points?
Point A (10, 6)
Point B (15, 10)
Answers
m = (y-y)/(x-x)
= 10-6/15-10
= 4/5
Answer:
i believe it is 4/5
Step-by-step explanation:
Mora is using a map to find the distance between her house and her cousin's house. She knows that 2 centimeters on the map represent 300 miles. the distance between her house and her cousin's house is 20 centimeters.
What is the distance, in miles, between Mora's house and her cousin's house?
A) 150
B) 320
C) 3,000
D) 6,000
Answers
Answer:
320
Step-by-step explanation:
Answer: The correct answer is C: 3,000
Step-by-step explanation: 2÷20= 10 × 300= 3,000 mile
could yall help me out :) thanks <3
Answers
Answer:
it is blank
Step-by-step explanation:
it is blank. its black.we cant see anything
Answer:
IT'S BLACK
Step-by-step explanation:
BLACK SCREEN!!!!!!!!
1. A = {ANKARA}
B = {}, C={Haftanın A harfi ile başlayan günleri}
ise s(A) + S(B) + s(C) toplamı kaçtır?
Answers
Answer:
Step-by-step explanation:
the anser is 4
Select all the group of numbers that are ordered correctly from least to greatest
Answers
Answer: B,C,D
Step-by-step explanation:
Its simple
NEED HELP ASAP! WILL GIVES 15 POINTS AND MARK BRAINLIEST
Answers
Answer:
2,800
Step-by-step explanation:
The proof that UX ≅ SV is shown.
Given: △STU an equilateral triangle
∠TXU ≅ ∠TVS
Prove: UX ≅ SV
Triangle T X V is shown. Point S is on side T X and point U is on side T V. A line is drawn from points S to U to form equilateral triangle T S U. Lines are drawn from point S to point V and from point U to point X and intersect at point W.
What is the missing statement in the proof?
Statement
Reason
1. ∠TXU ≅ ∠TVS 1. given
2. ∠STV ≅ ∠UTX 2. reflex. prop.
3. △STU is an equilateral triangle 3. given
4. ST ≅ UT 4. sides of an equilat. △ are ≅
5. ? 5. AAS
6. UX ≅ SV 6. CPCTC
△SXU ≅ △TVS
△UVX ≅ △SXV
△SWX ≅ △UWV
△TUX ≅ △TSV
Mark this and return
Answers
Answer:
D
Step-by-step explanation:
Edge
Answer:
D
Step-by-step explanation:
Segment A'B' is parallel to segment AB. What is the length of segment AB? What is the length of segment B'B? Your answer should be in decimal form with only one decimal place.
Answers
B’B is 3.5
Step-by-step explanation:
Segment A'B' is parallel to segment AB.
So, The length of segment AB is 7.5 units
The length of segment B'B is 3.5 units
Given :
Segment A'B' is parallel to segment AB. Few sides of the triangle is given.
Apply basic proportionality theorem
When A'B' is parallel to segment AB then sides are proportional
[tex]\frac{CB'}{B'B} =\frac{CA'}{A'A}[/tex]
Substitute the values
[tex]\frac{7}{B'B} =\frac{6}{3} \\cross \; multiply\\7(3)=B'B(6)\\21=B'B(6)\\Divide \; by \; 6\\B'B= \frac{21}{6} \\B'B=3.5[/tex]
Now we find AB by making a proportion
[tex]\frac{CA'}{CA} =\frac{BA'}{BA} \\\frac{6}{9} =\frac{5}{AB} \\Cross \; multiply\\6(AB)=5 \cdot 9\\6AB=45\\Divide \; by \; 6\\AB=7.5[/tex]
The length of segment AB is 7.5 units
The length of segment B'B is 3.5 units
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Work out the area of Triangle ABC
Just to confirm, these are the numbers,
Bottom right: √2cm
Bottom Left: 3√2cm
Middle right: 2√5cm
Answers
The main idea is using the Pythagorean formula to find the length of line segment [tex]DB[/tex].
Alr so you use the formula [tex]A^2 + B^2 = C^2[/tex]
[tex]C^2[/tex] is already given and is [tex]2\sqrt{5}[/tex]
and [tex]A^2[/tex] is [tex]3\sqrt{2}[/tex]
So using algebraic rules you'll get [tex]B[/tex] as:
[tex]\sqrt{2}[/tex]
Now using the formula: [tex]\frac{1}{2} b * h[/tex], you can find the area of tri ABD and CBD which would be [tex]3[/tex] and [tex]1[/tex] so add them up and you get [tex]4[/tex]!
What is the slope of the line on the graph?
1
1/2
2
3
Answers
Answer:
2
Step-by-step explanation:
The line goes up 2 units and to the right 1 unit.
Find the arthimetic mean of all odd numbers between 90 and 100
Answers
Answer:
91 , 93 , 95 , 97 , 99
here is your answer
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The odd numbers between 90 and 100 are :
[tex]91 \: , \: 93 \: , \: 95 \: , \: 97 \: , \: 99[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
The arithmetic mean of them is :
[tex] \frac{91 + 93 + 95 + 97 + 99}{5} = \\ [/tex]
[tex] \frac{475}{5} = 95\\ [/tex]
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Dan earns £400 over the course of a five-day week. How much is that per day?
Answers
Answer:
£80
Step-by-step explanation:
If there are 5 days in a work week, and he earns £400 for the whole week, you would divide £400 by 5. You get 80, so Dan earns £80 each day.
Answer:
£80
Step-by-step explanation:
divide £400 by 5
400/5 = 80
Question 2 (4 points)
(07.03)
What is the value of x in the equation 3(2x + 4) = -6? (4 points)
0
a
-3
Ob
1
Oc
12
Od
19
Answers
Answer:
X is -3
Step-by-step explanation:
3 times 2x is 6x
3 times 4 is 12
so 6x + 12 = -6
-3 times 6 is -18.
So -18 + 12= -6
ANSWER ASAPPP!!!!!!!!!!! please
Answers
Answer:
Neither.
Step-by-step explanation:
Note that both images are a backwards "L". If it was a reflection in the y axis, one would be an "L".
Answer:
neither
Step-by-step explanation:
No, this is not a reflection.
Question in picture solve
Answers
Answer:
Domain: -2, 0, 3, 5
Range: 5, 4, 6, -7
Step-by-step explanation:
The domain is all the values of x and the range is all the values of y.
