False. The statement is not true in general. The sign of sin() or cos() depends on the quadrant in which the angle lies.
For example, in the first quadrant, both sin() and cos() are positive, while in the second quadrant, sin() is positive and cos() is negative. In the third quadrant, both sin() and cos() are negative, while in the fourth quadrant, sin() is negative and cos() is positive.
Therefore, we cannot say for certain whether sin() is negative without knowing the quadrant of the angle. Similarly, we cannot say for certain whether cos() is positive or negative without knowing the quadrant of the angle.
However, if we know the quadrant of the angle and the sign of either sin() or cos(), we can determine the sign of the other trigonometric functions (such as cot()) using the appropriate trigonometric identity. For example, if we know that the angle lies in the second quadrant and sin() is positive, then we can use the identity \(cos^2() + sin^2() = 1\) to find that cos() is negative, and then use the identity cot() = cos() / sin() to find that cot() is negative.\(cos^2() + sin^2() = 1\)
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I have three squares and I want to divide them by 3/4 How many pieces would I have
4²times 4² is ? Explain how you know and simplify please
Answer:
For me, it always helps to break down equations like this. Divide it up into two separate parts.
4^2*4^2=x
4^2=16
Replace both 4^2 with 16
16*16=256
A spherical shell centered at the origin has an inner radius of 3 cm and an outer radius of 5 cm. Write an integral in spherical coordinates giving the mass of the shell (for this representation, do not reduce the domain of the integral by using symmetry; type phi and theta for \phi and \theta)
The integral for the mass of the shell becomes ∫₀^π ∫₀^{2π} ∫₃^₅ ρ(r, θ, φ) r^2 sin φ dr dθ dφ.
To find the mass of the spherical shell, we need to integrate the density over its volume. Let's assume that the density of the shell is constant, denoted by rho.
Using spherical coordinates, the integral for the mass of the shell can be written as:
M = ∫∫∫ ρ(r, θ, φ) r^2 sin φ dr dθ dφ
where,
ρ(r, θ, φ) is the density of the shell, which is assumed to be constant,
r is the radial distance from the origin,
θ is the azimuthal angle, which measures the angle in the xy-plane from the positive x-axis,
φ is the polar angle, which measures the angle from the positive z-axis.
Since the shell is centered at the origin and has an inner radius of 3 cm and an outer radius of 5 cm, the limits of integration are:
3 ≤ r ≤ 5
0 ≤ θ ≤ 2π
0 ≤ φ ≤ π
Thus, the integral for the mass of the shell becomes:
M = ∫∫∫ ρ(r, θ, φ) r^2 sin φ dr dθ dφ
= ∫₀^π ∫₀^{2π} ∫₃^₅ ρ(r, θ, φ) r^2 sin φ dr dθ dφ
the symmetry of the shell, which means that we are integrating over the entire volume of the shell. If the shell had some symmetry, we could have reduced the domain of the integral by exploiting that symmetry.
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Find the area of the shaded region in the picture below
Hint** - The area of a triangle is the base of the triangle times the height divided by 2
Help
Answer:
b
Step-by-step explanation:
i got it correct
Answer:
30 cm²
Step-by-step explanation:
solve for area of rectangle: 12 x 4 = 48 cm²
solve for area of triangle: 9 x 4= 36 / 2 = 18 cm²
subtract: 48- 18 = 30cm²
A Pyramid is placed inside a prism as shown in the pyramid has the same base area B as a prison but half the height H of the prism which expression gives the volume of the pyramid
Answer:
D) V= 1/6 bh
Step-by-step explanation:
The expression that provides the volume of the pyramid is as follows;
As mentioned in the question
It is given that the pyramid put inside a prism
Also the pyramid contains the similar base area but the height is half of the prism
so the base area of the pyramid is b
And, the Height of the pyramid = h ÷ 2
Now as we know that
The volume of the pyramid is
V = 1 ÷3 × base ares × height
= 1 ÷ 3 × b × h ÷ 2
V = 1 ÷ 6 bh
So, the volume is 1 ÷6 bh cube unit.
Answer:
V = 1/6 BH
Step-by-step explanation:
the volume of a pyramid is 1/3 BH , since the pyramid is only half the height of the prism you'll have to multiply 1/3 x 2 = 1/6
What are the outliers for 7,1,9,9,12,25,9,7,7,
pharmaceutical company conducts an experiment in which a subject takes 75 mg of a substance orally. the researchers measure how many seconds it takes for one quarter of the substance to exit the bloodstream. what kind of variable is the company studying?
The pharmaceutical company uses the quantitative variable to conducts an experiment.
Variables:
A variable is a characteristic of an object. Their values may occur more than once for a set of data. We consider just two main types of variables in this course.
Quantitative Variables - Variables whose values result from counting or measuring something.
Qualitative Variables - Variables that are not measurement variables. Their values do not result from measuring or counting.
Given,
A pharmaceutical company conducts an experiment in which a subject takes 75 mg of a substance orally.
And the researchers measure how many seconds it takes for one quarter of the substance to exit the bloodstream.
Here we need to find the kind of variable is the company studying.
Here the company uses the Qualitative Variable because here they measure the effects of the medicine not the measurement.
So, the experiment uses the Qualitative Variable.
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Miguel volunteers at his local food pantry and takes note of how much money is donated each day during a 10-day fundraising phone-a-thon. Below is the graph that represents the data that he collected. The slope of the line that represents the data that Miguel collected is 25, and the y-intercept is 50. What do the slope and y-intercept represent in Miguel’s situation?
Answer: Your welcome!
Step-by-step explanation:
The slope of the line represents the amount of money that is donated each day, which is 25. The y-intercept represents the amount of money donated on the first day, which is 50.
I need helppp plzzz :((
Answer:
u=8
3u+5u=64
8u=64
u=8
finish
Hey there!
FIRST: you have to SIMPLIFY BOTH SIDES of your given EQUATION (there’s approximately 3 ways but we will use 2)
• 3u = 64 – 5u
• 3u = –5u + 64
SECOND: ADD by 5u on BOTH SIDES
• 3u + 5u = –5u + 64 + 5u
• CANCEL: –5u + 5u because that gives you 0
• KEEP: 3u + 5u because it can help us solve for you u-value
“3u + 5u = 8u”
New equation: 8u = 64
THIRD: DIVIDE by 8 on BOTH SIDES
• 8u/8 = 64/8
• CANCEL out: 8u/8 because that gives you 1
• KEEP: 64/8 because that gives you your u-value
“64/8 = u”
“64/8 = 8”
• Therefore your ANSWER: u = 8 ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
How to divide exponents with different bases and powers.
To divide exponents with different bases and powers, you need to first factor out the common factors from the exponents. This will help you simplify the expression and make it easier to solve.
For example, let's say you have the expression 4x^3 / 2x^2. To divide these exponents, you need to factor out the common factors. In this case, the common factor is x^2, so you can simplify the expression as follows:
4x^3 / 2x^2 = (4/2) * (x^3/x^2) = 2x^(3-2) = 2x
So the answer is 2x.
In general, to divide exponents with different bases and powers, you need to:
1. Factor out the common factors from the exponents
2. Divide the coefficients (if there are any)
3. Subtract the exponents of the common factors
By following these steps, you can easily divide exponents with different bases and powers.
To divide exponents with different bases and powers, follow these steps:
1. Convert the bases to their prime factorization (if needed).
2. Divide the exponents with the same base by subtracting the exponent in the denominator from the exponent in the numerator.
3. Combine the results back together as a simplified expression.
Remember, you can only directly divide exponents with the same base. If bases are different, you'll need to factorize them to find common factors.
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Yvonne is comparing the weights of a semi-truck trailer tire and a mobile home. a semi-truck trailer tire weighs about 102 pounds, and a mobile home weighs about 104 pounds. what is the ratio of the weight of a semi-truck trailer tire compared to the weight of a mobile home?
The ratio of the weight of a semi-truck trailer tire compared to the weight of a mobile home will be 51: 52.
What is the ratio?The utilization of two or more additional numbers that compares is known as the ratio.
The weight of the semi-truck trailer tire is 102 pounds.
The weight of the mobile home is 104 pounds.
The ratio of the weight of a semi-truck trailer tire to a mobile home is given as.
Ratio = 102 / 104
Ratio = 51 / 52
Ratio = 51: 52
The ratio of the weight of a semi-truck trailer tire to a mobile home will be 51: 52.
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I need help solving #9 & #11! It's geometry but I'm just really stuck
Answer:
9)x=11 y=3
11)x=18 y=5
Step-by-step explanation:
9) 9x+25=13x+19 13x-19+17y+5=180
9x+44=13x 129+17y=180
44=4x 17y=51
11=x y=3
11) 49+3x=7x-23 3x=11y-1
what is 7/20 as a percent?
Answer:
35%
Step-by-step explanation:
Answer:
35 percent
Step-by-step explanation:
Which angle measures 40
Check the picture below.
¿cuántas raíces cuadradas tiene el número 0?
Answer:
one
Step-by-step explanation:
Zero has one square root which is 0.
Negative numbers don't have real square roots since a square is either positive or 0.
A coat that usually costs $120.00 is marked 1/3 off. What is the sale price of the coat?
Answer:
$120 + -33% = $80.40
Step-by-step explanation:
write 10 rational numbers between -1/3 and 1/3
Step-by-step explanation:
-1/4, -1/5, -1/6, -1/7, -1/8, 1/8, 1/7, 1/6, 1/5, 1/4
calculate the value of each of the following
Answer:
104.7664068
Step-by-step explanation:
4. Which graph shows a non-proportional linear
relationship between x and y?
A.
В.
Answer:
I think ( b) is non proportional linear
Please help me with THIS! :(((
Answer:
<C = <F
<B = < E
<A = < D
AB = DE
CA = FD
BC = EF
The triangles are basically the same, they are in corresponding order.
Hope I helped! Brainliest Appreciated!
An employee receives a 2% raise once per year. If the employee's initial salary is $52,400.00, What will the employee's salary be after 16 years?
The employee will receive a percentage raise after 16 years is $69,168
How to calculate the employee salary after 16 years ?The first step is to calculate the percentage raise of the salary per year
= 2/100 × 52,400
= 0.02 × 52,400
= 1,048
The next step is to multiply 1,048 by the number of years
= 1048 × 16
= 16,768
The salary after 16 years can be calculated as follows
= 52,400 + 16,768
= 69,168
Hence the employee salary after 16 years is $69,168
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can someone please help
Answer:
I think its Your Values, but try and a get a second opinion
What is the remainder when x 3 1 is divided by x 3 x 1?
The remainder when x³ - 1 is divided by (x + 3) is -28
How to determine the remainder of the polynomial division?The functions are given as
x 3 1 is divided by x 3
Rewrite them as
f(x) = x³ - 1 is divided by (x + 3)
Set the divisor to 0
So, we have
x + 3 = 0
Determine the value of x
This gives
x = -3
By the remainder theorem
Substitute x = -3 in the function f(x)
So, we have
f(-3) = (-3)³ - 1
Evaluate the expression
f(-3) = -28
By the remainder theorem, this represents the remainder
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2 pints
4 quarts
gallon
gallon
1
16
8 cups
19 quart
1 gallon
B
1 quart
2
(FO
>
1 cup
(0
(W)
None
D
ee
The answer to the given question is You have a total of 40 cups.
How to solve
Convert each measurement to cups:
2 pints = 4 cups (1 pint = 2 cups)
4 quarts = 16 cups (1 quart = 4 cups)
1 gallon = 16 cups (1 gallon = 4 quarts = 16 cups)
1 quart = 4 cups
Add up the total cups:
4 cups (from 2 pints) + 16 cups (from 4 quarts) + 16 cups (from 1 gallon) + 4 cups (from 1 quart) = 40 cups
Answer: You have a total of 40 cups.
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If you have 2 pints, 4 quarts, 1 gallon, and 1 quart, how many total cups do you have?
One erving of grapefruit juice i 3/4 cup. Gemma ha a pitcher with 3 1/4 cup of grapefruit juice. How many erving of grapefruit juice are in the pitcher? i-ready
Answer:
4
Step-by-step explanation:
3 1/4 cup = 13/4 cup = 3.25
3/4 cup = 0.75
3.25 / 0.75 = 4.33333
suzie purchased a dress on sale for 18.74. this is 70% of the original price. what was the original price?
Answer:
26.7
Step-by-step explanation:
Do you play any sports? (if not do you watch any sports?) (.Free .Points)
Answer:
Football and golf
Step-by-step explanation:
Answer:
THANKS MAN
Step-by-step explanation:
help :< I got 8 but idk if that's right
Answer:
8 is correct!
Step-by-step explanation:
each table can seat 5 people (3+2=5) then figure out how many tables that can seat 5 you will need for 40 people, do this by multiplication 5×8=40 so you need 8 tables
Please help!!! I’m so confused on how to solve this!
Let's first write the equation given
x²+6x-13=0
They have told us to use "Completing the square" method.
So we need write x²+6x-13 as a whole square.
x²+6x-13=0
x²+(2*3*x)-9-4 = 0
x²+(2*3*x)-3²=4
Now we can write the LHS as:
(x - 3)²=2²
Hence,
x-3 can either be 2 or -2
Now,
x - 3=2
x=5
Or,
x - 3=-2
x=1
Therefore now we know that x can either be 1 or 5. So the correct answer is Option B.
Step-by-step explanation:
x squared+6x-13=0
carry over that into the other side of the equal sign and then make the other side of the equal sign a perfect square
x squared +6x+3 squared=13+9(3 squared)
find the square root of both sides
(x+3)=class plus or minus
The expression 15n + 2(3p) represents the amount Isaiah spent buying gasoline and snacks, where n represents the price of each gallon of gasoline and p represents the cost of each snack that he bought. Which statement is true about the amount Isaiah spent?
Answer:
p= 2.5
Step-by-step explanation:
maybe you meant 15=2(3p)
so that would be the answer