The null and alternative hypotheses for a hypothesis test of the difference in two population means are:

Answer:

x=3

Step-by-step explanation:

Solve for  x  by cross multiplying.

Answer:

D

Step-by-step explanation:

subsitute each of the x and y values for each of the equations and if they both equal each other It is correct.

Answer:

x = 2, y= -1

Step-by-step explanation:

12x - y = 25

9x + y = 17

add both equations to eliminate y

21x = 42

divide by 21

x = 42/21

x = 2

sub x in equation i to find y

12(2) - y = 25

24 - y = 25

-y = 1

therefore y = -1, x = 2

Answer:

I think it is b or d I'm not sure though

Answer:

Plzzz

Step-by-step explanation:

Zoom innnn plzz

The postfix expression of "7+5-3*2(6*7)/4" is "7 5 + 3 2 * 6 7 * 2 * - 4 /". Evaluating the postfix expression gives the result of the expression. The prefix expression for the given infix expression is "/ - + 7 5 * 3 * 2 ( * 6 7 ) 4".

To convert the infix expression "7+5-3*2(6*7)/4" into postfix expression, we follow the rules of operator precedence and associativity. The postfix expression is obtained by placing operators after their operands.

The postfix expression for the given infix expression is:

"7 5 + 3 2 * 6 7 * 2 * - 4 /"

To evaluate the postfix expression, we use a stack data structure. We scan the postfix expression from left to right and perform the corresponding operations.

Starting with an empty stack, we encounter the operands "7" and "5". We push them onto the stack. Then we encounter the operator "+", so we pop the last two operands from the stack (5 and 7), perform the addition operation (7 + 5 = 12), and push the result back onto the stack.

We continue this process for the remaining operators and operands in the postfix expression. Finally, after evaluating the entire expression, the result left on the stack is the final answer.

To convert the infix expression into prefix expression, we follow similar rules but scan the expression from right to left. The prefix expression is obtained by placing operators before their operands.

The prefix expression for the given infix expression is:

"/ - + 7 5 * 3 * 2 ( * 6 7 ) 4"

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Answer:

17

Step-by-step explanation:

Substitute 5 in place of x

f(5) = 3*5 + 2

Answer:

yes

Step-by-step explanation:

Answer:

Yup it’s rational

Step-by-step explanation:

Have a great night!!

~ jassy ❤️

Answer:

47.5°

Step-by-step explanation:

(2x+10)°+75°= 180°------ sum of angles of a triangle

or, (2x+10°)=180°-75°

or, (2x+10°)=105°

or, 2x=105°-10°

or,2x=95°

or, x= 95÷2

therefore, x=47.5°

Answer:

x=21.25

Step-by-step explanation:

The lower two angles will be equal in an isosceles triangle and all angles in a triangle add up to 180 degrees so:

75+(2x+10)+(2x+10)=180

75+4x+20=180

4x=85

x=21.25

(both lower angles=52.5 degrees)

Proof:

52.5+52.5+75=180

Answer:

B) 3 1/3

Step-by-step explanation:

To divide the fractions, simply follow these steps.

First, flip the second fraction, so that the numerator is the denominator, and the denominator is the numerator. Change the division sign into a multiplication:

(2/3)/(1/5) = (2/3) * (5/1)

Next, multiply straight across:

(2/3) * (5/1) = (2 * 5)/(3 * 1) = 10/3

Finally, simplify. Change the improper fraction into a mixed:

10/3 = 3/3 + 3/3 + 3/3 + 1/3 =  3 1/3

B) 3 1/3 is your answer.

~

Answer:

I got 3 1/3

Step-by-step explanation:

Also to divide fractions do.  Keep Change and Flip

Keep the first fraction, flip the divide sign to the multiply sign.  Then flip the other fraction.  Then multiply

Answer: 6x10°+97

Step-by-step explanation:

6x10°-4-10-1+30-3+7x10+2x10-5

6x10°-4-10-1+30-3+70+2x10-5

6x10°-4-10-1+30-3+70+20-5

6x10°+97

Since the p-value (0.034) is less than the significance level of 0.05, we reject the null hypothesis. This suggests evidence against the claim that the median percent of impurities in the brand of jam is 2.5%.

To perform the sign test, we compare the observed values to the hypothesized median value and count the number of times the observed values are greater or less than the hypothesized median. Here's how we can proceed:

State the null and alternative hypotheses:

Null hypothesis (H0): The median percent of impurities in the brand of jam is 2.5%.

Alternative hypothesis (Ha): The median percent of impurities in the brand of jam is not 2.5%.

Determine the number of observations that are greater or less than the hypothesized median:

From the given data, we can observe that 5 jars have impurity percentages less than 2.5% and 11 jars have impurity percentages greater than 2.5%.

Calculate the p-value:

Since we are performing a two-tailed test, we need to consider both the number of observations greater and less than the hypothesized median. We use the binomial distribution to calculate the probability of observing the given number of successes (jars with impurity percentages greater or less than 2.5%) under the null hypothesis.

Using the binomial distribution with n = 16 and p = 0.5 (under the null hypothesis), we can calculate the probability of observing 11 or more successes (jars with impurity percentages greater than 2.5%) as well as 5 or fewer successes (jars with impurity percentages less than 2.5%). Summing up these probabilities will give us the p-value.

Compare the p-value to the significance level:

Since the significance level is 0.05, if the p-value is less than 0.05, we reject the null hypothesis. Otherwise, we fail to reject the null hypothesis.

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Answer:10

Step-by-step explanation:

Each chicken egg is 5

so day 2 and 5 combined is 15

and day 3 is 25

so subtract 25-15 its 10

Answer:

I think pretty sure its 2

Step-by-step explanation:

If you add the eggs from pen 2 and 5 you get 3 eggs in total. Then you gather all the eggs from pen 3 and minus the eggs you got from pen 2 and 5 which would be 5-3 which would then equal 2 eggs in total. I hope this helped :).

Answer: brandons assets are the stamp collection, the bank account, and the skate board .

Step-by-step explanation:

Answer:

80

Step-by-step explanation:

40×40=1600

Go the cal and check it yrself plss

I'm just trying to help

Brainliest plss

If u like to

Thnx_Helperoverhere

Answer:

#1. 2 miles

Step-by-step explanation:

explanation is in picture

(27d^(2))/(8c^(2)) contains the C term with the same exponent and the d term with a different exponent as compared to the given expression.  The correct is option (C).

The given expression is ((3C^(4)d^(4))/(2d^(9)))^(3).

We need to find the expression that is equivalent to the given expression. Here, we will use the properties of exponents to simplify the given expression, and then we will compare it with the expressions .

Let us simplify the given expression.

((3C^(4)d^(4))/(2d^(9)))^(3) = (3C^(4)d^(4)/2d^(9))^(3) = (3/2)(C^(4)d^(4-9))^(3) = (3/2)(C^(4)d^(-5))^(3) = (3/2)C^(4*3)d^(-5*3) = (3/2)C^(12)/d^(15)

Now, we need to compare this expression with the expressions given in the answer choices.

Option (A) (3d^(4))/(2c^(2)) cannot be the equivalent expression because it does not contain C and d terms with the same exponents.

Option (B) (81d^(6))/(8C^(6)) cannot be the equivalent expression because it contains the C term with a different exponent as compared to the given expression.

Option (C) (27d^(2))/(8c^(2)) contains the C term with the same exponent and the d term with a different exponent as compared to the given expression. Hence, this expression is equivalent to the given expression.

Hence, this expression is equivalent to the given expression .Therefore, the correct is option (C) (27d^(2))/(8c^(2)).

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The APR, or stated rate, is calculated as the annualized interest rate expressed as a percentage.

The APR, or stated rate, represents the annualized interest rate on a loan or investment, expressed as a percentage.

To calculate the APR, we need to consider the nominal interest rate and the compounding frequency. The formula to calculate the APR is:

APR = (1 + nominal interest rate/compounding periods)^(compounding periods) - 1

The nominal interest rate is the stated rate without taking compounding into account.

The compounding periods refer to the number of times interest is compounded in a year, typically based on daily, monthly, or quarterly periods.

By applying the formula and considering the appropriate compounding periods, we can determine the APR.

The APR is an important metric as it allows for easy comparison of interest rates across different financial products.

It helps consumers and investors understand the true cost or yield associated with a loan or investment and enables them to make informed decisions.

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Answer:

x=-3/2

Step-by-step explanation:

2x+3=0

2x=-3

x=-3/2

Given statement solution is :- Tangent Length GH equals 60 units.

To find the length of GH, we can use the fact that tangents drawn to a circle from an external point are equal in length. Therefore, GH must be equal to GI.

Given that OI is the radius of the circle, we can set up a right triangle OIG, where OG is the hypotenuse and OH is one of the legs.

Using the Pythagorean theorem, we can find the length of OI:

\(OI^2 = OG^2 - OH^2\)

\(OI^2 = 65^2 - 25^2\)

\(OI^2\) = 4225 - 625

\(OI^2\) = 3600

OI = 60

Since GH is equal to GI, GH = OI = 60.

Therefore, Tangent Length GH equals 60 units.

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Answer:

The angle measures \(\frac\pi2\) radians, or 90°

Step-by-step explanation:

In radians, the measure of an angle is defined as the length of the arc divide by the radius of the circle of which that arc is part of. In our case

\(\angle XOY = \frac {\overarc{XY}}{OX} = \frac{16\pi}{32} = \frac\pi2\)

Answer:

angle XOY = \(\frac{\pi}{2}\) (in radians) or 90° (in degrees)

Step-by-step explanation:

So firstly we need to consider that the unit of measurement is radians, not degrees, as represented by the 'measures 16π cm'.

Next, since we have the length of arc XY given as 16π cm, we can apply the formula for the length of an arc, in radians, which is \(l=r\theta\).

I'm assuming that you know how to derive the formula for arc length since you are getting questions about arc length like this, but if not, then you can just search on the internet: "derivation for the formula of arc length in radians"

Therefore: we should let ∠XOY = ∅ and so,

\(l=16\pi\) and \(r=32\)

\(16\pi =32\theta\\\frac{16\pi}{32}=\theta\\ \frac{\pi}{2}=\theta\)

∴∠XOY = \(\frac{\pi}{2}\\\) radians

(Unless otherwise stated, return your answer in the same unit of measurement as the measurements in the question)

Answer:

0+8

Step-by-step explanation:

add 8 each time

it is 0 because in times table if you have 8, 16 and 24 then you don't need to add it on or take away from it, so it will be 0.

I hope that helped.

Answer:

C.15

Step-by-step explanation:

one box has 5 chocolates so 3*5=15

Answer:

To add fractions, find the LCD and then combine.

3/4 + (1/4−16)= −15

Step-by-step explanation:

Answer: x < 1

--------------------    

Answer:

The two angles of ΔABC are equal to the two respective angles of ΔFED. Also, the sum of all interior angles of a triangle is 180º. Therefore, third angle of both triangles will also be equal in measure.

Answer:

\(2x + 6 = 4x + -2\)

\(\Longrightarrow2x+6-6=4x-2-6\)

\(\Longrightarrow 2x=4x-8\)

\(\Longrightarrow 2x-4x=4x-8-4x\)

\(\Longrightarrow -2x=-8\)

\(\Longrightarrow \frac{-2x}{-2}=\frac{-8}{-2}\)

\(\hookrightarrow \underline{ANSWER: x=4}\)

-------------------------

hope it helps...

have a great day!!

The given values are 2,6,5,3,0,3,4,3,2,4,5,2,4

There are the following values as shown in the given data.

To find the mode first we have to assign each value that how many times it appears.

1. 2-3 the number 2 appears only Three times.

2. 6-1 the number 6 appears one time.

3. 5-2 the number 5 appears only two times.

4. 3-3 the number 3 appears only three times.

5. 0-1 the number 1 appears only one time.

6. 4-3 the number 4 appears only Three times.

So, the mode of the given data is 4,3,2 as it appears the most number of times.

If a given set of values with two modes is bimodal, a given set of numbers with three modes is trimodal, and any set of numbers with more than one mode is multimodal.

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Answer:

56.25

Step-by-step explanation:

7.5x7.5=56.25