Answer:
-4 +4 =0
Step-by-step explanation:
The sum of a number and its' additive inverse is 0
The additive inverse of -4 is 4
-4 +4 =0
Let StartFraction cosine (2 x) Over cosine (x) + sine (x) EndFraction = 0 where 0° ≤ x ≤ 180°. What are the possible values for x?
a- 45 only
b- 135 only
c- 45 or 225
d- 135 or 315
*NEED HELP ASAP
Answer:
The correct option is;
a- 45° only
Step-by-step explanation:
The given equation can be presented as follows;
[tex]\dfrac{cos (2 \cdot x)}{cosine (x) + sin (x)} = 0[/tex]
We have that cos(2·x) = cos²(x) - sin²(x)
Also, we have, by the difference of two squares, the following relation;
cos²(x) - sin²(x) = (cos(x) - sin(x))(cos(x) + sin(x))
Therefore, the given equation can be written as follows;
[tex]\dfrac{cos (2 \cdot x)}{cosine (x) + sin (x)} = \dfrac{(cos(x) - sin(x)) \times (cos(x) + sin(x))}{(cos (x) + sin (x))} =0[/tex]
Crossing the common term, (cos(x) + sin(x)), in the numerator and the denominator, we have;
[tex]\dfrac{(cos(x) - sin(x)) \times (cos(x) + sin(x))}{(cos (x) + sin (x))} = cos(x) - sin(x) = 0[/tex]
From cos(x) - sin(x) = 0, we have;
Adding sin(x) to both sides of the equation
cos(x) - sin(x) + sin(x) = 0 + sin(x)
cos(x) = sin(x)
Therefore, the opposite leg and the adjacent leg of the right triangle formed with reference to the angle x are equal
∴ x = 90/2 = 45° only for 0° ≤ x ≤ 180°
Answer:
A. 45 only
Step-by-step explanation:
EDGE 2020
Combine like terms
7a^2+ 10a - За - 2а2^2
Answer:
5a^2+7a
Step-by-step explanation:
You combine things based off the variable and exponent. So if they have the same variable and exponent, you put them together. 7-2=5 and 10-3=7 so your answer is 5a^2+7a
Sam bought an $85.00 for 40% of the regular price.How much did he pay for the jacket?
Answer:
he payed 34$ for the jacket
Step-by-step explanation:
What is the sum of -1.4-(-0.5)=-1.4+0.5
Help me Please!!!!!!!!!!!!
Answer:
literally 0
Step-by-step explanation:
Based on the diagram, which expresses all possible lengths of segment AB?
AB = 25
27 81
Answer:B
Step-by-step explanation:
27 < AB < 81 expresses all possible lengths of segment AB
What is Inequality?A relationship between two expressions or values that are not equal to each other is called 'inequality.
The sum of the lengths of any two sides of a triangle is greater than the length of the third side (Triangle Inequality Theorem)
So AC+BC>AB
27+54>AB
81>AB
AB<81
27+AB>54
AB>54-27
AB>27
54+AB>27
AB>-27
Hence, 27 < AB < 81 expresses all possible lengths of segment AB
To learn more on Inequalities click:
https://brainly.com/question/28823603
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Based on the diagram, which expresses all possible lengths of segment AB?
AB = 25
27 < AB < 81
AB = 85
AB< 27 or AB > 81
what is true about the slopes of perpendicular lines
4x+5+4x+5+4x+5+4x+5+4x+5 solve for x
Answer:
3
Step-by-step explanation:
Roll a number cube. If the number cube comes up odd, you win the same number of points as the
number on the cube. If the number comes up even, you lose 4 points.
What is the expected number of points per roll?
-0.25
-0.5
0
Oo oo
0.25
0.5
Answer:
-0.5
Step-by-step explanation:
What is the value of x in the equation One-third x minus two-thirds = negative 18? –56 –52 52 56 Need answer ASAP!!!! Being Timed
Answer:
Step-by-step explanation:
fhv
What is the value of the fallowing when x = 0
A. y = -5
B. y = -2
C. y = -1
D. y = 0
Answer:
B
Step-by-step explanation:
When x = 0 we are looking at the y- axis
The graph crosses the y- axis at y = - 2
Thus when x = 0 then y = - 2 → B
what is 1395^2 plz help
What is - ( 2)^3?
Help please
guys if I don't finish this imma get beat please help
Answer:
The answer is b.) hope this helps!!
Step-by-step explanation:
if you only look at H and H', you can see H' is being translated(slid) down the Y axis and since it is sliding down, it is -4, giving you (x, y-4)
what is the value of this?
Answer:
4
Step-by-step explanation:
I used desmos
[tex]\textsf{Hey there!}[/tex]
[tex]\mathsf{\dfrac{-2(7-15)}{4}}\\\\\mathsf{7-15=-8}\\\\\mathsf{\dfrac{-2(-8)}{4}}\\\\\mathsf{-2(-8)=16}\\\\\mathsf{\dfrac{16}{4} = 4}\\\\\\\boxed{\boxed{\mathsf{Thus,\ your\ answer\ is: \boxed{\boxed{\mathsf{\bf{D.\ 4}}}}}}}\checkmark[/tex]
[tex]\textsf{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{LoveYourselfFirst:)}[/tex]
Which statements are true about the enlargement of triangle ABC to triangle A’B’C’? Check all that apply.
BC < B’C’
A’B’ < AB
B < B’
=
The scale factor for this dilation is less than 1.
C ≅ C’
Answer:
A, D, F
Step-by-step explanation:
Answer:
A
D
F
Step-by-step explanation:
I got it right on my assignment
Cynthia’s mom gave her $20.00 to spend at her friend’s birthday party on Friday night. Write an inequality that represents the number of games, g, Cynthia can bowl to remain within her budget.
Answer:
will or will not
Step-by-step explanation:
The inequality that represents the number of games [g] Cynthia can bowl to remain within her budget is -
gx ≤ 20
What is the general equation of a Straight line inequality? What is inequality? What are strict and slack inequalities.The general equation of a straight line is -
[y] > [m]x + [c]
[y] < [m]x + [c]
[y] ≥ [m]x + [c]
[y] ≤ [m]x + [c]
where -
[m] → is slope of line which tells the unit rate of change of [y] with respect to [x].
[c] → is the y - intercept i.e. the point where the graph cuts the [y] axis.
Strict inequalities are those inequalities which use either > or < to compare expressions. Example : 2x + 4 > 5
Slack inequalities are those inequalities which use either ≤ or ≥ to compare expressions. Example : 2x + 4 ≥ 5
We have Cynthia’s mom who gave her $20.00 to spend at her friend’s birthday party on Friday night.
Assume that a single game costs $x. Then, the inequality that represents the number of games [g] Cynthia can bowl to remain within her budget is-
gx ≤ 20
Therefore, the inequality that represents the number of games [g] Cynthia can bowl to remain within her budget is -
gx ≤ 20
To solve more questions on inequalities, visit the link below-
https://brainly.com/question/14875221
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2x+7=3x+4
step by step
Answer:
3=x or x=3
Step-by-step explanation:
2x+7=3x+4
-2x+2x7=-2x+3x+4
7=x+4
7-4=x+4-4
3=x or x=3
6. You have 220 feet of fencing material to enclose a rectangular area for your pet animals. Let x = the length of the rectangular enclosure. (a) [7 points] Set up the function A(x) that represent the enclosed area. (b) [7 points] What should be the dimensions of the enclosed area? (c) [2 points] What is the maximum area of the enclosed area?
Answer:
I will start with (c)
(c) What is the maximum area of the enclosed area?
the maximum area of a rectangle is always given by a square figure
since the square has 4 equal sides, each side will be 220 / 4 = 55 ft long
maximum area = 55 x 55 = 3,025 ft²
(b) What should be the dimensions of the enclosed area?
the dimensions would be 55 ft in length by 55 ft in width
(a) Set up the function A(x) that represent the enclosed area.
perimeter of the rectangle = 220
we have 4 equal sides, so
A(x) = x²
Choose the correct Triangle Congruence Theorem
Answer:
ASA
Step-by-step explanation:
Answer:
AAS
Step-by-step explanation:
The triangles have two congruent angles and one congruent side. This means they are congruent through the AAS theorem. The reason it is not the ASA theorem is that the side is not included, which means it is not in-between the congruent angles.
A camera is able to capture 3/4 of a picture per second. How long will it take a camera to snap 6 pictures
Please help me find the area of this!!! 15 points!!
Answer:
[tex]A\approx1608.7\text{ yards}^2[/tex]
Step-by-step explanation:
We can use the alternate formula for the area of a triangle:
[tex]A=\frac{1}{2}ab\sin(C)[/tex]
Where a and b are the side lengths, and C is the angle between the side lengths.
We know that one side length is 60 and the other is 70.
The angle between them is 50°.
So, substitute 60 for a, 70 for b, and 50° for C. This yields:
[tex]A=\frac{1}{2}(60)(70)\sin(50)[/tex]
Evaluate using a calculator. Make sure you’re in Degrees Mode.
Therefore, the approximate area is:
[tex]A\approx1608.7\text{ yards}^2[/tex]
im really confused
Answer:
C. 10.5
Step-by-step explanation:
2=3
3=4.5
4=6.0
5=7.5
6=9
7=10.5
Answer:
the answer is 10.5
Step-by-step explanation:
if you keep going with the relationship every 1 place value up is another 1.5 added so if you go to 7 you get 10.5
(Proportional Relationships)
At a certain elementary school there are 26 students per
classroom. If y represents the total number of students at
the school and x represents the number of classrooms,
which equation is the best representation?
Select one:
y = 26/x
y = 26x
x = 26y
y = 1/26 x
Answer: y =26x
Step-by-step explanation:
Describe a strategy for finding the difference of two temperatures/Answer in complete sentences.
Hello this is my question if you answer correctly you will receive 30 points plus branliest please be mindful and help me solve this question ASP
Answer:
Use google scooby it's easier than this way.
Step-by-step explanation:
what is the distance between the points with coordinates (-5,5) and (5,-5)? express your answer in simplest radical form
Answer:
10 spaces in each direction
Step-by-step explanation:
5
!
-5--------------------!-------------------5
!
!
5
Shelila had $4.75 to buy pencils for an art class and each pencil costs 89c. How much pencils will she have?
Answer:
5 pencils
Step-by-step explanation:
4.75 / 0.89 = 5.33
Since you can't buy 1/3 of a pencil, Shelila can only buy up to 5 pencils
Brennan studies the relationship shown in the table. Which expression describes a method Brennan could use to determine the y-value when x equals 7?
Answer:
What is the long Division rhyme to help you solve?
What is the long Division rhyme to help you solve?
Step-by-step explanation:
It also detects if you are right or wrong
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
According to the table ;
[tex]f(0) = 6[/tex]
Let's check that in which of the equations it happens.
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
A )
[tex]y = f(x) = 6x + 4[/tex]
[tex]f(0) = 6(0) + 4[/tex]
[tex]f(0) = 0 + 4[/tex]
[tex]f(0) = 4[/tex]
Wrong
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
B )
[tex]y = f(x) = 4x + 6[/tex]
[tex]f(0) = 4(0) + 6[/tex]
[tex]f(0) = 0 + 6[/tex]
[tex]f(0) = 6[/tex]
Correct.
Thus this option is the correct answer.
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
C )
[tex]y = f(x) = 2x + 4[/tex]
[tex]f(0) = 2(0) + 4[/tex]
[tex]f(0) = 0 + 4[/tex]
[tex]f(0) = 4[/tex]
Wrong
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
HELP ME ASAP!!!!!!!!!!!!!
Answer:256
Step-by-step explanation:
do [tex]2^{^{4\cdot \:2}}[/tex]
which equals [tex]2^{8}[/tex]
so your answer would be 256
mark me as brainliest pls :)
Answer:
where is the picture
Step-by-step explanation:
I beg anybody please
Answer:
if no one answers pic b cuz i got good luck
Step-by-step explanation: