I think the answer is b. cos(pi theta)= -0.6
The requried solution of the equations in the interval form are a. (-0.575, 0.575) and b. (0.71, 3.43).
What are trigonometric equations?These are the equation that contains trigonometric operators such as sin, cos.. etc.. In algebraic operations.
a.
We can solve for theta by dividing both sides by 3, then taking the inverse cosine of both sides. Remember that there will be two solutions in the given interval because cosine has a period of 2π.
3cos(4Ф) = -2
cos(4Ф) = -2/3
4Ф = ±cos⁻¹(-2/3)
cos⁻¹(-2/3) ≈ 2.300
4Ф = ±2.300
Ф = ±0.575
Similarly,
b.
For cos(πФ)= -0.6
Ф= 0.71, 3.43
Thus, the requried solution of the equations in the interval form are a. (-0.575, 0.575) and b. (0.71, 3.43).
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Martin made 12 out of 40 shots during the basketball game. What percent of his shots did he make?
Answer:
30 percent
Step-by-step explanation:
12/40=0.3
0.3=30 percent
Answer:
30%
Step-by-step explanation:
To find a percent, use this equation:
x/100 = n/t
where x is the percent, n is the select number of things, and t is the total number of things
Substitute:
x/100 = n/t
x/100 = number of shots Marin made/number of shots attempted
x/100 = 12/40
Now, we need to cross multiply, or multiply the numerators by the denominators of the other fraction, and vice versa.
Multiply:
x/100 = 12/40
x(40) = 40x
100(12) = 1200
40x = 1200
Now, divide both sides of the equation to find the value of x.
Divide:
40x = 1200
/40 /40
x = 30
Now we have the percent is fraction form: 30/100
To make it a percentage, simply take the numerator and add the % sign.
Therefore, Martin made 30% of his shots.
!Emergency math question!
Answer:
Equation: P = 1900 + 70n
Answer if 26 copies sold= 3720
Step-by-step explanation:
Answer:
p=1900 +70n
Step-by-step explanation:
simplify (3)(-4) + (3)(4) - 1
Answer:
1
Step-by-step explanation:
Ken’s prediction for December was –5°C. The actual low temperature was 3 degrees higher than his prediction. The actual low temperature in December was _ºC.
Answer:
-2 °C
Step-by-step explanation:
Add 3 °C to get a temperature 3 °C higher.
-5 °C + 3 °C = -2 °C
Answer:
-2
Step-by-step explanation:
hope this helps :)
Bozo the clown brings a total of 20 balloons to Jake’s birthday party. There are 7 yellow, 2 red, and 11 green balloons. He reaches into his pocket and randomly selects a color to make a balloon animal. If he pulls a yellow balloon first, what is the probability of the next color to be selected randomly will also be yellow?
Answer:sorry mabye if you elpan it mire i can help
Step-by-step explanation:
Find the volume of the cylinder to the nearest tenth. Use 3.14 for it.
6 m
15 m
The volume of the cylinder is approximately
m
Answer:
1696.46
Step-by-step explanation:
the formula of a cylinder volume is πr2h. Which is 3.14 x 6squared x 15. And then you'll have the volume.
A jar contains 100 tickets for a drawing. Among those tickets are 7 winning tickets. What are the odds in favor of winning?
A. 7:93
B. 7:100
C. 93:7
D. 93:100
Answer:
i say 7/100
Step-by-step explanation:
if the 100 tickets is your total then its your denominator
the 7 is represents the tickets what are winners
What is the height of the cone below?
3 in.
9 in.
27 in.
75 in.
Answer:
The answer should be 9in.
hope that helped.
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
Write the equation 3x+2y- 5 = 0 in normal form. Then, find the length of the normal and the angle it makes with the
positive x axis.
Answer:
The answer is a
Step-by-step explanation:
You and your friend play the same note. Your friends instrument is in tune and is playing a note it 256 Hz, but your are slightly out of tune and are playing a note at 260Hz. What is the beat frequency
Answer:
In fact, they'll do that if only ONE of them is out of tune.
As long as there's a difference between the two frequencies,
they'll create beats.
Step-by-step explanation:
hope this helps plz brainiest
-7x = 42
I need an answer
Look at the attached picture
Hope it will help you
Answer:
[tex]x = - 6[/tex]
Step-by-step explanation:
[tex] - 7x = 42 \\ \frac{ - 7x}{7} = \frac{42}{ - 7} \\ x = - 6[/tex]
Please answer CORRECTLY !!!!!! WILL MARK BRAINLIEST
Answer:
5
Step-by-step explanation:
7m - 2m = 5m
-5n - 3n = 8n ( just in case you need it (: )
Also, have a great day
Rewrite the function by completing the square.
h(x)=4x^2-36x+81
Answer:
[tex]4(x-4.5)^2+60.75[/tex]
Step-by-step explanation:
[tex]h(x)=4x^2-36x+81\\\\h(x)=4(x^2-9x+20.25)+60.75\\\\h(x)=4(x-4.5)^2+60.75[/tex]
Hope this helps!
Answer:
Step-by-step explanation:
Use the formula
b/2^2
Answer: 4( x- 9/2)^2 + 0
help meeee, i need helppp
Answer: The first one is A. 16 + 10 +10 +10 +10
The second one is 40 units^2
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
When you get all the areas together, the answer is A. Sorry i was late to help
Give 3 angle measures of an obtuse triangle.
Answer:There are many different answers :-) but 100, 40, 40 is one
Step-by-step explanation:
There are quite a few answers, but you need to make sure 1 angle is greater than 90 degrees. The remaining two angles should add up to less than 89 degrees and all 3 angles should total 180 degrees.
i.e. 100, 40, 40
Can you guys help me plsss
I do not get this work
Answer:
160 square units
Step-by-step explanation:
We need to find the surface area of this figure, which is basically the areas of all the exterior sides.
Looking at the pyramid, we notice that we have 4 congruent triangles and 1 square.
Triangles:
The area of a triangle is denoted as A = (1/2) * b * h, where b is the base and h is the height. Here, the base is 8, so b = 8, and the height is 6, so h = 6. Plug these values in to get the area of one triangle:
A = (1/2) * b * h
A = (1/2) * 8 * 6 = (1/2) * 48 = 24
The area of one triangle is 24 square units, so the area of 4 is 24 * 4 = 96 square units.
Square:
The area of a square is denoted by: A = s * s = s². Here, s = 8, so plug that in:
A = s²
A = 8² = 8 * 8 = 64
The area of the square is 64 square units.
Now add up the areas of the triangles and square:
96 + 64 = 160 square units
The surface area is 160 square units.
Answer:
160
Step-by-step explanation:
Surface area = 4 triangles + square
4(½ × 6 × 8) + 8²
96 + 64
160 units²
Jill’s coach used a computer program to help her improve the distance she can throw a softball. The computer gave a readout of the path of her best throw. The path of this throw was represented by the quadratic equation y = –0.15x2 + 1.3x + 4, where x represents the number of feet the ball traveled and y represents the height of the ball in feet. Use the graphing calculator to graph the equation. At what distance did the ball hit the ground? Round your answer to the nearest hundredth. feet
Answer:
11.08 feet
Step-by-step explanation: I just got it wrong and it told me the answer. :/
Answer:
11.08 feet
Step-by-step explanation:
Got it right on edge
The safe fluoride-to-water ratio is 0.5 to 1.4 parts per million (ppm) gallons. What is the range in parts of fluoride that could be added to 500,000 gallons of water?
Answer:
250,000 to 700,000 parts
Step-by-step explanation:
For the lower ratio of 0.5, we have to get 0.5 flouride parts/1 gallon of water equivalent to (some fluoride parts)/ (500,000 gallons of water). we can multiply 500,000 by 0.5 to get 250,000 as our lower limit. Similarly, we can multiply 500,000 by 1.4 to get 700,000 as our upper limit
find the value of 1÷3x when X=1
1÷3x when x=1
1÷3×1=1÷3≈0.67
If U is the set of all natural numbers less than 10, A is its subset containing all natural numbers less than 6 and B⊂U consists of all natural numbers greater than 4 (and of course smaller than 10), draw Venn diagram showing these sets. List elements of sets A, B, their union, and their intersection.
Answer:
U = {1,2,3,4,5,6,7,8,9}
A = {1,2,3,4,5}
B = {5,6,7,8,9}
Step-by-step explanation:
The graph represents this system of equations.
What is the solution to the system of equations?
Sv=4-x
v=x-2
(-2,4)
(1,3)
(2,4)
(3, 1)
-5 -4 -3 -2
Answer:
(3, 1 )
Step-by-step explanation:
The solution to a system of equations give graphically is at the point of intersection of the 2 lines.
The point of intersection is (3, 1 )
Thus solution is (3, 1 )
Jermaine went to the Adventureland Park with $40 to spend. His ticket cost $16. Write and solve an inequality to show how much he might spend on souvenirs and snacks.
Please help me do this ❤️
Answer:
24$ left
Step-by-step explanation:
40-16=24$
he has 24$ left for snacks
make me brainiest and hope this helps
There are 9 friends playing a card game in which all of the 52 cards in a standard deck are distributed to the players. How many cards does each person get?
Answer:5 and 7 left
Step-by-step explanation:
Answer:
Each person would get 5 cards, withe 7 left over.
Step-by-step explanation:
This is because 52/9 is 5.7777. So then you would multiply 9 by 5 and get 45. You finally do 52-45 and get the 7 leftovers.
Given sec A =
✓97/9
and that angle A is in Quadrant I, find the exact value of tan A
in simplest radical form using a rational denominator.
Answer: 4/9
Step-by-step explanation:
9^2+B^2= 97
81+b^2=97
b^2=16
B=4
opposite=4
adj=9
tan= opposite/adj = 4/9
Find the volume of the prism.
The volume is
cubic inches.
So the right answer is 3/10 cubic inches.
Look at the attached picture
Hope it will help you
Good luck on your assignment
Question 18(Multiple Choice Worth 1 points) Using the given zero, find all other zeros of f(x). -2i is a zero of f(x) = x4 - 45x2 - 196
The picture shows the zeros of f(x). -2i is a zero of f(x) = x4 - 45x2 - 196
He buys 1 quart of milk and one eighth
gallon of milk. How many cups of milk does he buy?
Answer:
He bought six cups of milk
Step-by-step explanation:
1 quart is 4 cups and one eighth of a gallon is 2 cups.
Identify the constant term in 14x + 6y - 5. A. 14 B. 6y C. -5 D. 5
Answer:
D
Step-by-step explanation:
Answer:
C. -5
Step-by-step explanation:
14x and 6y both have variables attached to them
the most basic form for a function like this is ax+by+c
the definition of constant is a fixed value. the reason your constant has to be a solo number, not attached to a variable, is that these variables change the number!! so, -5, the only number that won't change in the function, is the constant.
HELP!
This pattern follows the rule divide by 5. What is the next number in the pattern?
875, 175, 35, ________
A. 17
B. 12
C. 7
D. 3
Answer: C
Step-by-step explanation:
What is the volume of a hemisphere with a radius of 29.6 in, rounded to the nearest tenth of a cubic inch?
Answer:
V = 54316.7 in³
Step-by-step explanation:
V = 54316.7463 in³
The solution is, the volume of a hemisphere with a radius of 29.6 in, rounded to the nearest tenth of a cubic inch is, 54289.2 cubic inches.
What is volume?In mathematics, volume is the space taken by an object. Volume is a measure of three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units. The definition of length is interrelated with volume.
here, we have,
a hemisphere with a radius of 29.6 in,
i.e. The radius is 29.6.
now, we know that,
the volume of a hemisphere = 2/3 * pi* r^3
using the formula, we get,
V = 2/3 * 3.14 * 29.6³
=54289.2100267
now, rounded to the nearest tenth we get,
54289.2100267 ≈ 54289.2
The volume of the hemisphere should be 54289.2 cubic inches.
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