Answer:
Step-by-step explanation:
1-2sin²∝=cos 2∝
1-2sin²(105)=cos(2×105)
=cos 210
=cos (180+30)
=-cos 30
[tex]=-\frac{\sqrt{3}}{2} \\[/tex]
The correct answer is option A which is the value of the expression is -√3/2.
What is trigonometry?The branch of mathematics sets up a relationship between the sides and the angles of the right-angle triangle termed trigonometry.
The expression will be solved as:-
1-2sin²∝=cos 2∝
1-2sin²(105)=cos(2×105)
1-2sin²(105=cos 210
1-2sin²(105=cos (180+30)
1-2sin²(105=-cos 30
1-2sin²(105 = -√3/2.
Therefore the correct answer is option A which is the value of the expression is -√3/2.
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WILL GIVE BRAINLIEST AND 10 POINTS
What are the relationship between the blood type alles???
Answer:
Blood groups are inherited from both parents. ... Individuals with IAIA or IAi have type A blood, and individuals with IBIB or IBi have type B. IAIB people have both phenotypes, because A and B express a special dominance relationship: codominance, which means that type A and B parents can have an AB child.
Sean drank a slushy as fast as he could.
The amount of slushy left in the cup (in milliliters) as a function of time (in seconds) is graphed.
How fast did Sean drink the slushy?
A. 10ml per second
B. 1 ml per second
C. 0.8 ml per second
D. 8 ml per second
Sean drank slushy 8 ml per second.
The correct answer is an option (D)
What is the slope of the line?"The slope of the line passing through points [tex](x_1,y_1),(x_2,y_2)[/tex] is,
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]"
For given question,
From the graph, we can observe the line is passing through points (0, 600) and (75, 0)
Let [tex](x_1,y_1)=(600,0),(x_2,y_2)=(75,0)[/tex]
The slope of the line would be,
[tex]\Rightarrow m=\frac{y_2-y_1}{x_2-x_1}\\\\\Rightarrow m=\frac{0-600}{75-0}\\\\\Rightarrow m =\frac{-600}{75}\\\\ \Rightarrow m = -8[/tex]
This means, Sean drank slushy 8 ml per second.
The correct answer is an option (D)
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please HELPPPPPPPPPPPPP
25.13274122.
....................
2. Find
110°
B
С.
95°
Pas
100 A
100
E
Answer:
55°
Step-by-step explanation:
By angle sum property of a quadrilateral :
[tex]m\angle BED = 360\degree - (110\degree + 95\degree + 100\degree) \\\\
m\angle BED = 360\degree - 305\degree \\\\
\huge \purple{m\angle BED = 55\degree}\\\\[/tex]
15PTS PLEASE HELP ASAP!
(dont write random answers pls)
look at the pic attached:
Answer:B if two lines are cut by a traversal, then corresponding angles are congruent.
Step-by-step explanation: the corresponding angles theorem proves this.
A book store sells 10 cookbooks, 18 novels, and 25 children's books on
Saturday. The store sells 6 cookbooks, 12 novels, and 15 children's books on
Sunday. Which ratio is the smallest?
A. Number of novels to children's books sold on Sunday
B. Number of cookbooks to novels sold on Saturday
C. Number of novels to children's books sold on Saturday
D. Number of cookbooks to novels sold on Sunday
Answer:
D)
Step-by-step explanation:
A) Ratio of novels : children's books Sunday -> 12:15 or 4:5
B) Ratio of cookbooks : novels on Saturday ->10:18 or 5:9
C) Ratio of novels : children's books Saturday -> 18:25
D) Ratio of cookbooks : novels Sunday -> 6:12 or 1:2
Ratios from options A) B) and C) are all larger than 1:2 (1/2 or 0.5)
Please help me with this!
Answer:
B. 2
Step-by-step explanation:
Answer:
I think the ans is C .............m
Would someone PLEASE help with this and explain how you got the answer I WILL MARK BRAINLIEST
Answer:2 48,39=87
Step-by-step explanation:
Answer:
DV
DE
VE
Step-by-step explanation:
2. Express each of the following percentages as a decimal.
12%
Answer:
.12
Step-by-step explanation:
if it is out of 100% then 12% is equal to .12 from 1
A 100-ounce jug of liquid laundry detergent
can wash 64 loads of laundry. How many
loads could a 150-ounce jug of detergent
wash?
Answer:
96
Step-by-step explanation:
divide 100 and 64 by 2 than multiply both by 3
Find the slope and y-intercept of the graph of the equation. y = -6.5x + 4.7
Answer:
Slope: -6.5
y int: 4.7
Step-by-step explanation:
Distribute: 2x ( 3 + 8x) *
Answer:16x^2+6x
Step-by-step explanation:
True or False:
The geometric meaning of the word normal is perpendicular.
Answer:
A normal is an object such as a line or vector that is perpendicular to a given object. ... If normal is 90 degree to the surface, that means normal is used in 3D. Perpendicular in that case is more in 2D referring two same entities (line-line) with 90 degree angle between them.
Solve the system by elimination
2x – y=1
x + 3y – 4= 0
The value of x and y for the given equation by elimination method are 1 and 1 respectively.
Elimination method for solving the system of equations;The elimination method is the process of eliminating on of the variables in the system of linear equations using the addition or subtraction methods in conjunction with multiplication or division of coefficients of the variables.
According to the given question
We have two equations
[tex]2x -y =1...(1)[/tex]
[tex]x+3y-4=0...(2)[/tex]
Multiply equation (1) both the sides by 3
[tex]6x - 3y =3...(3)[/tex]
Adding equation (2) and (3)
[tex]6x+-3y+x+3y -4 =3\\7x =7\\x =1[/tex]
Substitute
x =1, in either 2x -y =1 or x + 3y -4 =0
2(1) - y =1
⇒ -y = 1 -2
⇒ -y = -1
⇒ y =1
Hence, the value of x and y is 1 and 1 respectively.
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I need help asap
Less then 5 minutes
Answer:
um well he would be well rested so he would score higher than others but I'm not sure on the exact number maybe around 90-100
100 points!+ brainlist = moving up!= friending u=awesomeness
Evaluate StartFraction 8 (6 + 5) over 2 squared EndFraction + 6(2).
22
34
56
112
Answer:
56
Step-by-step explanation:
Answer:
34
Step-by-step explanation:
Start by adding the number in the parenthesis: This gives us (8(11)/2^2) + 6(2)
Square the bottom: (8(11)/4) + 6(2)
Multiply the top of the fraction: (88/4) +6(2)
Divide 88 by 4: 22 + 6(2)
Multiply 6 and 2: 22 + 12
Add 22 and 12: 22 + 12 = 34
Answer: 34
Can someone check if I did this right
Help me please I hate right and doing this uhh
Answer:
C
Step-by-step explanation:
There are many ways to figure it out but if you multiply by 20 each you'll get 40/100=40%
Answer:
c: 2/5
Step-by-step explanation
40% ÷10= 4÷2=2
100%÷10=10÷2=5
So you do 40% over 100% and divide both by 10 then simplify it and 2 goes into both 4 and 10 so you divide by 2 and get 2/5
Find the distance between the 2 points shown on the number line.
Р
Q
-10
-5
0
5
10
12
13
14
15
Answer:
It's 12 please give brainliest
Step-by-step explanation:
-6 and 6 make it 12
Answer:
its B. 13
Step-by-step explanation:
Blurry picture but i really need this answered this test is worth more then half my grade.
Answer:
These are the coordinate pairs: (0,0), (2,4), (3,6), (6,12)
Step-by-step explanation:
since y=2x, you just multiply every value for x by 2, so for the x values 0, 2, 3, and 6, you would get 0, 4, 6, and 12, respectively.
AD is a diameter of circle ABCDE . Angle BAC=22° & angle ADC=60°. AE and ED are parallel lines. Find the values of w, x,y,and z
Answer:
x = 22°
w = 30°
y = 30°
z = 52°
Step-by-step explanation:
From ΔACD,
AD is the diameter and ∠ACD is the angle subtended by the diameter.
Therefore, m∠ACD = 90°
By triangle sum theorem,
m∠DAC + m∠ACD + m∠CDA = 180°
w° + 90° + 60° = 180°
w = 180 - 150
w = 30°
AB║ED and AD is a transversal line.
Therefore, m∠BAD = m∠ADE
(w + 22)° = z°
30 + 22 = z
z = 52°
Since, ∠CEB and ∠BAC are the inscribed angles subtended by the same arc BC,
Therefore, m∠CEB = m∠BAC
x = 22°
Similarly, ∠CED and ∠DAC are the inscribed angles subtended by the same arc CD,
m∠CED = m∠DAC = 30°
y = 30°
plz help me I need this!!
Answer:
B
Step-by-step explanation:
The slope of this graph which is the unit rate = 18/4 = 4.5 This graph goes through 0,0 and (4,18) and the unit rate = y /x
Determine whether the statement is true or false. Explain your reasoning. "Every relation is a function."
what is the square root of 10 to the second power
Answer:
10
Step-by-step explanation:
reduce the index of the radical and exponent with 2
|10|
The absolute value of any number is positive
10
Last week, Subway sold 602 Veggie Delite sandwiches, 935 ham sandwiches, 1,328 turkey breast sandwiches, 757 roast beef sandwiches, and 1,586 Subway Club sandwiches. Find the total number of sandwiches sold.
Answer:
Subway sold 5208 sandwiches
Step-by-step explanation:
Step 1.
It is required to calculate the total number of sandwiches sold by Subway. It sold 602 Veggie, 935 ham, 1,328 turkey breast, 757 roast beef, and 1,586 Subway Club Sandwiches.
Step 2.
Sum the amount of each sandwich sold to determine the total
What expression is
represented in the model
below?
the answer is:
4x + 4y + 7
What is the equation of a line perpendicular to -x +2=y that intersects the line at (-1,5, 3,5)?
Answer:
B
Step-by-step explanation:
slope equals 1 and y-int equals 5
i need help please!!!!!!
Answer:
Is B☆
Step-by-step explanation:
is B b b b bb ☆☆
4g6yvyvuvvv y yvyvvtvycrxtxt
cgcycycuv
ctvyc
bjb
jbvt
crxtctvyvyvyvyv
yvh
Find the slope of the line.
Please help
Answer:
0
Step-by-step explanation:
The slope of a line that is horizontal is always 0.
click and drag like terms onto each other to simplify fully
7-1-6+4x