Answer:
x = 41.81°, 138.19°, 210°, 330°
Explanation:
3cos(2x) + sin(x) = 1
subtract one from both sides
→ 3cos(2x) + sin(x) − 1 = 0
rewrite using trigonometry identities
→ 2 + sin(x) − 6sin²(x) = 0
solve x by substitution
f(x) = 2 + sin(x) − 6sin²(x)
= 2 + 4sin(x) - 3sin(x) − 6sin²(x)
= −2sinx(3sinx −2) − (3sinx−2)
= (3sinx −2)(−2sinx−1)
= −(3sinx −2)(2sinx+1)
f(x) = 2 + sin(x) − 6sin²(x) = 0
= −(3sinx −2)(2sinx+1) = 0
(3sinx −2) = 0 (2sinx+1) = 0
→sinx = 2/3 →sinx = −1/2
x = 41.81°, 138.19° x = 210°, 330°
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Please help it’s urgent
Answer:
1750 sq m
Step-by-step explanation:
100 x 85 = 8500 and 90 x 75 = 6750, so take away 6750 from 8500, 8500 - 6750 = 1750 sq m
(x^8+2x^4+1)+(2x^4+x^2+1)
Your problem → (x^8+2x^4+1)+(2x^4+x^2+1)
(x^8+2x^4+1)+(2x^4+x^2+1)
=x^8 + 2x^4 + 1 + 2x^4 + x^2+1
=x^8+2x^4+2x^4+x^2+1+1
=x^8+4x^4+x^2+2
This is the question I need the answer in 24 house or less please and thank u
Answer:
Vertex: (–9, 1)
Axis of Symmetry: x = –9
Step-by-step explanation:
x = 9 is the lowest point on the graph. This makes it the x-coordinate of the vertex and the axis of symmetry. Now count how many squares above the x-axis it is. It's 1 square above, right? This means the vertex is (–9, 1).
Hope this helps you. Have a great day!
Evaluate the expression for x= -4.
4x2 - 6x + 7
When x= -4,4x2 - 6x +7=
4 movie tickets cost $35, how many dollars per ticket
Answer:
140
Step-by-step explanation:
35 x 4= 140
Justin flipped a coin and it landed on tails 7 times and heads 3 times. What is the experimental probability that the coin lands on tails the next time he flips it? (HOW DID YOU GET YOUR ANSWER PLEASE SHOW WORK!!)
A. 70%
B. 5040
C. 5.2
D. 4(2X+4)
E. 300%
F. 2.5
G. 5267
H. 4X(2X-4)
I. 299%
J. .4
Answer:
Step-by-step explanation:
Jessie stacked photographs of 6 zoo animals on top of each other to create a display. Each photo is 14 1/4 in. high. How high is the display?
Answer:
85 1/2 inches
Step-by-step explanation:
14 1/4 x 6 = 85 1/2 inches
Hope that helps!
estimate 5/8 - 1/10 explain
Answer:
21/40.
Step-by-step explanation:
Find the LCD (Least Common Denominator) of the fractions. The LCD of 5/8 and 1/10 is 40.
Convert both fractions into denominators of 40.
So then we have: 25/40 - 4/40 which is equal to: 21/40.
21/40 is the estimated value of the expression 5/8 -1/10
What is Number system?A number system is defined as a system of writing to express numbers.
The given expression is 5/8 -1/10
The terms in the expression are in the form of fractions, A fraction represents a part of a whole.
To find the value of expression firstly find the LCM of 8 and 10
40 is the LCM
5(5)-1(4)/40
25-4/40
The value of 25 minus 4 is twenty one.
21/40 is the value of the expression 5/8 -1/10
Hence, 21/40 is the estimated value of the expression 5/8 -1/10
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Cuanto es la rais cuadrada del rectángulo entre dos y multiplicada por 1837
14,696
buen dia
(lo siento)
un terreno de forma triangular tiene 250 pies de base por 180 pies de altura Cuál es la magnitud de su área en metro
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Actually Welcome to the Concept of the Areas..
Bienvenidos al concepto de áreas.
Área de un triángulo = 1/2 * base * altura,
aquí, base = 250, altura = 180, así que obtenemos como
Área = 1/2 * 250 * 180
Área = 250 * 90
Área = 22,500 mtrs.
The magnitude of the area of the triangular piece of land is approximately 2,094.2 square meters.
What is a triangle?A triangle is a 2-D figure with three sides and three angles.
The sum of the angles is 180 degrees.
We can have an obtuse triangle, an acute triangle, or a right triangle.
We have,
First, let's calculate the area of the triangular piece of land in square feet:
Area = (1/2) x base x height
Area = (1/2) x 250 ft x 180 ft
Area = 22,500 sq. ft
To convert this to square meters, we can use the conversion factor of 1 sq. ft = 0.092903 sq. m:
Area = 22,500 sq. ft x 0.092903 sq. m/sq. ft
Area ≈ 2,094.2 sq. m
Rounding to the nearest tenth of a square meter, we get:
Area ≈ 2,094.2 sq. m
Therefore,
The magnitude of the area of the triangular piece of land is approximately 2,094.2 square meters.
Learn more about triangles here:
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The complete question:
A triangular piece of land has a base of 250 feet by a height of 180 feet What is the magnitude of its area in meters
21=3g help me please lol i just got a math question saying 21=3g
Answer:
g=7
Step-by-step explanation:
21=3g
g=7
Answer:
g=7
.............................
PLEASE HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE PLEASEEEEEEEEEEEEEEEEEEEEEEEE WILL GIVE BRAINLIST
2. Hank used a semicircle, a rectangle, and a triangle to form the following composite figure. What is its area in square centimeters? Use 3.14 to approximate . Show your work.
Answer:
Step-by-step explanation:
The area of a circle is 3.14r^2
The area of the triangle is bh/2
The area of the rectangle is wh
A=3.14(5^2)/2+8(10)/2+5(20)
A=3.14(25)/2+40+100
A=179.25 cm^2
Answer:
Step-by-step explanation:
Area of rectangle = 5 × 20 = 100 cm²
Area of triangle = 0.5 × 10 × 8 = 40 cm²
Are of semicircle = 0.5 × area of circle = 0.5 × πr² = 0.5 × 25π = 12.5π cm²
Total area = 100+40+ 12.5π ≈ 179.25 cm²
Write the ratio as a fraction in lowest terms. Be sure to make necessary conversions:
12 feet to 15 inches
------/---------
Answer:12533
Step-by-step explanation:
Pls help I’ll brainlest ASAP and add extra points
Answer:
3 to 6 making 9 multiply by 4 giving 36
add 3 by 4 = 36
same
lmk of u hv questions
13° N What is the measurement of N? es
Answer: ..The 13 N + 12,13 C elastic scatterings have been measured at laboratory energies of 16.3, 20. and 29.5 MeV.
Step-by-step explanation:
Is there any potential areas of bias or error due to the wording of this question, "Did you continue to use
marijuana after you realized using it was causing you problems with family, friends, or people at work or school?"
4 3
10 x 2.43 = 10x2++
10 100
100)
Answer:
add my sc = bmic ava, no spaces
or add my discord = XoXo_ava
Step-by-step explanation:
hope i can help bbg / bbb :
) !!!
When chords intersect in a circle, the vertical angles formed intercept congruent arcs.
Answer:
sometimes
Step-by-step explanation:
if those are the options you have then that's the correct answer
need help on this question plz answer
Answer:
x≥31
Step-by-step explanation:
3x≥120-27
3x≥ 93
x ≥ 93/3
x≥31
Answer is x≥31
Answer:
x > 31
Step-by-step explanation:
3x > 93
x > 93/3
x > 31
There are 18 suites altogether in the hotel, how many suites are there on each floor if each floor has the same floorplan?
From the original question there were 6 floors with rooms.
Divide the number of suites by number of floors:
18 / 6 = 3
There are 3 suites per floor.
Factor the polynomial 4x2
24x + 36 completely
Answer:
Step-by-step explanation:
4(x^2 = 6x + 9)
4(x + 3)(x + 3)
Marks own a carpet store and sells hallway runners for k9.52/linear foot. a) How much is this per linear yard? b) How much is the per linear Meter? C) Ralph needs 3.9m of the runner for his hallway. How much will it cost? Full working out. Please calculate this for me
Answer:
28.56/linear yard
32.2256/linear meter
121.77984k
Step-by-step explanation:
a) Scale = k9.52*3 = 28.56/linear yard
b) Scale = k9.52*3.28 = 32.2256/linear meter
c) Cost = 3.9 * 32.2256 = 121.77984k
Name the following segment or point.
Given:
L, M, N are midpoints
Р
M
A
R
N
B
altitude to AC
segment BT
O segment AS
segment BL
Answer:
should be segment BT, that's what i put and it was right. hope this helps
Step-by-step explanation:
The altitude to the line segment AC is line segment BL.
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.
Given, L, M, N are midpoints.
We know the altitude of a triangle is a line segment that originates from one vertex of a triangle and bisects the opposite side of the triangle.
By observing the given figure we conclude that the altitude to the line segment AC is the line segment BL.
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Given the points (-5,-7) and (-2,-8), calculate
the slope.
(I NEED THIS ANSWER ASAP!)
Answer:
Slope is -1/3
Step-by-step explanation:
(-5,-7)(-2,-8)
-8+7/-2+5
-1/3
m=-1/3
Answer:
Slope=-1/3
Step-by-step explanation:
Solve seven tenths times two fourths
Answer:
with simplify: 1 4/20.
without simplify: 24/20
Step-by-step explanation:
first we have to find the common denominator
can 4 go into 10? no.
can 4 go into 20? yes! it goes into 20, 5 times!
common denominator = 20
_/20 + _/20
what we do to the bottom we do to the top
7 x 2= 14
14/20 + _/20
2 x 5= 10
14/20 + 10/20 = 24/20
now simplify
1 4/20
hope this helped!
The population of a city decreases by 1.2% per year. If this year's population is
242,000, what will next year's population be, to the nearest individual?
Answer:
Your answer
212960
Mark it as Brainlist answer. Follow me to get more answer
Step-by-step explanation:
Answer: it is actually 239096
Step-by-step explanation:
If it takes 30 apples to fill 2 boxes, how many apples are needed to fill 3 boxes?
Answer: 45 apples will be needed to fill 3 boxes
Step-by-step explanation: If there are an even amount of apples in each box, 15 times 2 is 30. So if there are 15 apples in each box, 15 times 3 is 45.
Answer:45 apples
Step-by-step explanation:
Since 15 apples are needed to fill 1 box, 45 apples are needed to fill 3 bboxes
A car dealer sells four model types: A,B,C,D. On a given week, this dealer sold 10 cars of model A, 5 of model B, 8 of model C and 3 of model D. The selling prices of each automobile are respectively $12,500, $11,800, $15,900 and $25,300.
Represent the data on the quantity sold using using matrix.
Answer:
its latter A
Step-by-step explanation:
i hope its help
19 tens is the same
as
Count forward by fives.
the total cost of a pizza and 3 drinks is $19 the price of the pizza is $10 and each drink is the same price D what is the price of one drink please I need help
Answer:
3
Step-by-step explanation:
9 divide by 3 is 3 itself so the answer is 3