HELPPPPPPP
PLS.
HELP.
-Elizabeth R.
-YT: Lizzy Playz (with an anime girl icon with glasses)
-Dis Cord: Your.Local.Lizzy.Afton

Answer:

1−cos2A=43

⟹cos2A=1−43

⟹cos2A=44−3

⟹cos2A=41

⟹sec2A=4

⟹secA=±2

sorry if wrong

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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Answer: 6, 4.5

Step-by-step explanation:

Answer:

Below

Step-by-step explanation:

Z score is the ± standard deviations from the mean

the speed of light in cold air is 1 x 10⁶ times greater than the speed of sound in cold air. Your answer is C-1×10⁶.

The speed of light in cold air is approximately 3 X 10⁸ meters per second, while the speed of sound in cold air is approximately 3×10² meters per second. Therefore, to find out how many times faster the speed of light is compared to the speed of sound, we need to divide the speed of light by the speed of sound.
3 X 10⁸ meters per second ÷ 3×10² meters per second = 1 X 10⁶
This means that the speed of light in cold air is 1 million times faster than the speed of sound in cold air. Therefore, the answer is C - 1 X 10⁶.
It's important to note that the speed of light is constant in a vacuum and slightly slower in other mediums, while the speed of sound varies depending on the medium it's traveling through. The speed of sound is faster in denser mediums and slower in less dense ones.

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4) reflexive property

5) SSS

Answer:

x =1 08

Step-by-step explanation:

The kind of triangle in the image above is a scalene triangle.

A scalene triangle is a type of triangle that has three sides with different lengths. It is one of the three main types of triangles, the other two being isosceles and equilateral triangles. They also have three different angles.

Scalene triangles do not have any congruent sides or angles, making them the most diverse and versatile type of triangle. They can be used to construct many different shapes and figures, and have many unique properties and characteristics that make them useful in a variety of fields, including mathematics, physics, and engineering.

In the image given, the three sides of the triangle appears to be of different sizes.

Therefore, we can conclude that the triangle is a scalene triangle.

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a) the 90% confidence interval for the proportion of Americans who decide not to go to college because they cannot afford it is 45.1% to 52.9%

b) a sample size of approximately 1629 people would be recommended to achieve a margin of error of about 1.5% for a 90% confidence level

(a) To calculate a 90% confidence interval for the proportion of Americans who decide not to go to college because they cannot afford it, we can use the sample proportion and the standard error formula. The sample proportion is 49% (0.49) and the sample size is 350.

The margin of error (ME) for a 90% confidence level is approximately 1.645 times the standard error. The standard error is calculated as the square root of (p*(1-p)/n), where p is the sample proportion and n is the sample size.

Using these values, the 90% confidence interval can be calculated as:

p ± ME

= 0.49 ± 1.645 * sqrt(0.49*(1-0.49)/350)

= 0.49 ± 0.039

Therefore, the 90% confidence interval for the proportion of Americans who decide not to go to college because they cannot afford it is 45.1% to 52.9%. We are 90% confident that 45.1% to 52.9% of all Americans who decide not to go to college do so because they cannot afford it.

(b) To determine the required sample size to achieve a margin of error of 1.5% for a 90% confidence level, we can use the formula: n = (Z^2 * p * (1-p)) / (ME^2), where Z is the z-score corresponding to the desired confidence level, p is the estimated proportion, and ME is the desired margin of error.

Substituting the values into the formula, we have:

n = (1.645^2 * 0.49 * (1-0.49)) / (0.015^2)

n ≈ 1629

Therefore, a sample size of approximately 1629 people would be recommended to achieve a margin of error of about 1.5% for a 90% confidence level.


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Answer: |81 - (-29)|==> C

Step-by-step explanation:

h=high temperature

h=81

l=low temperature

l=-29

d=difference in high and low temperature

h-l=d

81-(-29)=d

81+29=d

d=110 ==> |81 - (-29)|=|81 +29|=|110|=110

|81 - (-29)|==> C

|81 -29|=|52|=52

-29 + 81=81-29=52

Answer:

8:31

Step-by-step explanation:

all of them are equal with 1:4 except 8:31

Answer:

I think that it would be 100^(0.085)

Answer: 6.71

Step-by-step explanation:

\(AB=\sqrt{(-1-5)^{2}+(6-3)^{2}} \approx \boxed{6.71}\)

Answer:

x = 14.5945195193

Step-by-step explanation:

c² = a²+b²

c² = 7²+10² = 49+100

c² =149. ........take both sides by radical

√c²= √149

c= 12.2065556157

c² = a²+b² = x²

x² = 8²+(12.2065556157)²

x² = 64 + 149

x² = 213. .....take both sides by radical

√x² = √213

x = 14.5945195193

Answer:

1/2

Step-by-step explanation:

Even numbers on the dice:

2, 4, 6

Probability of getting even:

3/6

1/2

The absolute value of the test statistic for the analysis of the average change in blood pressure after a yoga session is 3.15 (rounded to 2 decimal places).

To calculate the test statistic, we need to use the formula:

Test statistic = (Sample mean - Population mean) / (Sample standard deviation / √Sample size)

In this case, the sample mean (average change in blood pressure) is -15.67 mmHg, the population mean is unknown, the sample standard deviation is 4.98 mmHg, and the sample size is 20.

Since we don't have the population mean, we assume it to be zero as there is no specified alternative hypothesis. Therefore, the test statistic becomes:

Test statistic = (-15.67 - 0) / (4.98 / √20) = -15.67 / (4.98 / √20)

Calculating the test statistic, we find that the absolute value of the test statistic is approximately 3.15 when rounded to 2 decimal places.

The test statistic measures the difference between the sample mean and the assumed population mean in terms of standard deviation units. In this case, it indicates how significant the average change in blood pressure after the yoga session is compared to a population with no change (population mean of zero). A larger absolute value of the test statistic suggests a more significant difference.

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Answer:

14,400

Step-by-step explanation:

Hope this helpfull..but if it's not,im so sorry

Answer:

9,0

Why?

Another way to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.

A string is wrapped around the edge of a uniform cylinder with a radius of 42 cm and a mass of 5 kg. The cylinder is initially at rest on a frictionless table.

In this scenario, the string wrapped around the cylinder can be used to apply a force and set the cylinder into motion. The tension in the string creates a torque that causes the cylinder to rotate. The key parameters of the cylinder are its radius (r = 42 cm) and mass (m = 5 kg).

To analyze the motion of the cylinder, we can consider the principles of rotational dynamics. The torque exerted on the cylinder is equal to the product of the tension in the string and the radius of the cylinder (τ = T * r). According to Newton's second law for rotation, the torque is also equal to the moment of inertia (I) multiplied by the angular acceleration (α) of the cylinder (τ = I * α).

Since the cylinder is initially at rest, the angular acceleration is zero. Therefore, the torque applied by the tension in the string is also zero. This implies that the tension in the string is zero, and there is no force acting on the cylinder to set it into motion.

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Answer:24-25a

Step-by-step explanation:

Answer:

\(\begin{bmatrix}-1 & 2 \\ \frac{3}{2} & -\frac{5}{2} \end{bmatrix}\)

Step-by-step explanation:

Inverse of a matrix is given by,

\(\begin{bmatrix}a & b\\ c & d\end{bmatrix}=\frac{1}{ad-bc}\begin{bmatrix}d & -b\\ -c & a\end{bmatrix}\)

By using this property,

\(\begin{bmatrix}5 & 4\\ 3 & 2\end{bmatrix}^{-1}=\frac{1}{(5\times 2-4\times 3)}\begin{bmatrix}2 & -4\\ -3 & 5\end{bmatrix}\)

              \(=-\frac{1}{2}\begin{bmatrix}2 & -4\\ -3 & 5\end{bmatrix}\)

              \(=\begin{bmatrix}-1 & 2 \\ \frac{3}{2} & -\frac{5}{2} \end{bmatrix}\)

Therefore, inverse of the given matrix will be \(\begin{bmatrix}-1 & 2 \\ \frac{3}{2} & -\frac{5}{2} \end{bmatrix}\)

Given:

System of equations is

\(y=6x+1\)

\(y=mx+1\)

To find:

A value of M that will give you a system of equations with exactly one solution.

Solution:

A system of equation has exactly one solution if the graph of the equation is neither parallel nor coincident.

Slope of parallel lines are same. But in the given equations if slopes are same then both the system of equations have two same equations which represent coincident lines.

For one solution, \(m\neq 6\).

So, the value of m can be any real number except 6 because for m=6.

Thus, \(m=R-{6}\).

1 is a real number which is not equal to 6.

Therefore, one possible value of m is 1.

Answer & Step-by-step explanation:

On a six-sided die, there are 4 numbers less than 5. So, we can write this as a fraction.

\(\frac{4}{6}\) or we can write this fraction as \(\frac{2}{3}\)

So, the probability of rolling a number less than 5 is \(\frac{2}{3}\)

Answer:

$15

Step-by-step explanation:

25% of 12 is 3 so just add that to the original value

Answer:

$15

Step-by-step explanation:

Multiply the cost by the percentage mark up

12 × 25%

Convert the percentage into a decimal

12 × 0.25

3

Add the mark up to the original price

12 + 3

15

The test statistic for the given sample is 1.26.

In order to solve this question, we need to use the z-test equation:

z = (\(\bar x\) - μ)/ (σ/√n)

where:

\(\bar x\) = sample mean (678 BD)

μ = population mean (566 BD)

σ = population standard deviation (130)

n = sample size (169)

Plugging in the numbers:

z= (678- 566)/ (130/√169)

z = 1.26

Therefore, the test statistic for the given sample is 1.26.

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The disadvantage of buying "used-car" from "private-seller" is : (a) It can be expensive than dealership can offer, (b) It may have problems seller did not disclose, (c) It does not come with warranty, the correct option is (d) All the above.

Option (a) : It may be more expensive than a dealership can offer: Private sellers may price their used-cars higher than what a dealership can offer. Dealerships often have the advantage of bulk purchasing, negotiation power, and the ability to offer financing options that can make their prices more competitive.

Option (b) : It may have problems the seller did not disclose: When buying from a private seller, there is a risk that the seller may not disclose all the problems or issues with the vehicle.

Option (c) : It does not come with a warranty: Unlike buying from a dealership, where used cars often come with warranties or extended warranty options, purchasing from a private seller does not include any warranty coverage. This means that if any mechanical problems arise after purchase, the buyer will be responsible for repair costs.

Therefore, the correct option is (d).

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The given question is incomplete, the complete question is

One potential disadvantage to buying a used car from a private seller is:

(a) It may be more expensive than a dealership can offer

(b) It may have problems the seller did not disclose

(c) It does not come with a warranty

(d) All the above

Answer: The answer is 110 cookies

Step-by-step explanation: 176 divided by 8 = 22 cookies per cup.

22 x 5 = 110 cookies

Hope this helps ^o^

Answer: it would be 2.53

Step-by-step explanation: best answer

The radius of the circle is approximately 10.17 units (rounded to two decimal places).

To find the radius of the circle, we need to use the formula that relates the central angle to the length of the arc and the radius of the circle. The formula is given as:

arc length = radius x central angle

In this case, the arc length is given as 24.4 and the central angle is given as 2.4 radians. Substituting these values in the formula, we get:

24.4 = r x 2.4

Solving for r, we get:

r = 24.4 / 2.4

r ≈ 10.17

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