What’s the correct answer for this?

Answer:

an obtuse angle is an angle more than 90 degrees but less than 180 degrees

Step-by-step explanation:

:)

Answer:

$117

Step-by-step explanation:

Given that:

They buy these books for $105 each and sell them to unsuspecting undergraduates at $222 each

Marginal Profit = Marginal Revenue – Marginal Cost.

Marginal Profit = $222 - $105

Marginal Profit = $117

the marginal profit for a single elementary statistics book $117

For the remaining unsold books in the middle of the semester he bundles them up and sells to vendor in another country for $40 each for which he suffers a marginal loss of $105 - $40 = $65 each

Answer:

A. f(x)= -(x-3)^(2)-2

Step-by-step explanation:

graphing the parabola, using the direction, vertex, focus, an axis of symmetry, we see that the direction it opens is down, like the picture shows. The vertex is at (3, -2), focus is (3,-9/4), axis of symmetry is x=3, and the directrix is y = -7/4 just as the picture shows. Therefore, A is the correct answer.

Hope this helps!!

Answer:

A. [tex]F(x)=-(x-3)^2-2[/tex]

Step-by-step explanation:

For the function F(x) to flip upside-down, there needs to be a negative sign in front. This eliminates answers "B," and "D." The function F(x) shifted 3 units to the right, meaning there needs to be a -3 being subtracted. The function also shifted downwards 2 units, meaning there's a -2 being subtracted.

This makes the correct answer be "A."

Answer:

a. Yes

b. No

Step-by-step explanation:

In a hypothesis​ test, the null hypothesis is in fact true.

a. Is it possible to make a Type I​ error?

Yes, it is possible to make a type I error because a type I error typically occurs if the null is rejected when it is actually true.

b. Is it possible to make a Type II​ error?

It is not possible to make a type II error because the condition for a type II error is that the null is in fact not true but we fail to reject it.

Answer:

0.80 + 0.65 = 1.45

Step-by-step explanation:

apple: 0.80

orange: 0.65

The correct answer is B. What are the ages of all your cousins?

Explanation:

Statistics focus on using numbers to analyze variables in a population or in a specific sample taken from this population. This means statistical questions can be answered by analyzing different features in a population. For example, you can wonder what is the time students on a class spend doing homework?.

According to this, the one that is a statistical question is "What are the ages of all your cousins?" because this question focuses on analyzing one variable or factor in a population; in this case, the ages of your cousins, which requires gathering information and then using numbers to represent and analyze this, which is the objective of statistics.

Answer:

7 nickels, 12 dimes

Step-by-step explanation:

n+d= 19

5n+10d= 155 ⇒ n+2d= 31

comparing the 2 equations we get

d=12, then n= 7

Answer:

No solution

Step-by-step explanation:

Because x = 0

Answer:

9

Step-by-step explanation:

f(x) = x•x

f(-3) = -3*-3

f(-3)= 9

Answer:

true its just a filp with the y and x and resolved

Step-by-step explanation:

Answer:

THE ANSWER OF THIS QUESTION IS CONE

Answer:

B. Cone

Step-by-step explanation:

The flashlight beam is of the shape of a cone

Answer:

8/27

Step-by-step explanation:

4/9 * 2/3

Multiply the numerators

4*2 = 8

Multiply the denominators

9*3 = 27

Put the numerator over the denominator

8/27

This is in simplest form

Answer:

[tex]y-6=2\,(x-4)[/tex]

or in slope y-intercept form :

[tex]y=2x-2[/tex]

Step-by-step explanation:

The easiest way of find the answer for this is to use what is called the "point-slope" form of a line, because you are in fact given the value of the slope (m) and also a point   [tex](x_0,y_0)[/tex]  it goes through:

[tex]y-y_0=m\,(x-x_0)[/tex]

In our case the equation becomes:

[tex]y-y_0=m\,(x-x_0)\\y-6=2\,(x-4)\\[/tex]

This can also be written in the slope-intercept form by solving for "y" and operating to remove the parenthesis:

[tex]y-6=2\,(x-4)\\y=2x-8+6\\y=2x-2[/tex]

Answer:

In geometry, the midpoint is the middle point of a line segment. It is equidistant from both endpoints, and it is the centroid both of the segment and of the endpoints. It bisects the segment. hope that helps love!

Answer:

[tex]\{p_1,p_2\}$ is a basis of Span\{p_1,p_2,p_3\}[/tex]

Step-by-step explanation:

Given the polynomials:

[tex]p_1(t) = 1 + t\\ p_2(t) = 1 -t\\p_3(t) = 2\\[/tex]

On Inspection

[tex](1+t)+(1-t)=1+1+t-t=2\\$Therefore:\\p_1(t)+p_2(t)=p_3(t)[/tex]

By the Spanning Theorem  

If one vector in S is a linear combination of the others, we can delete it and get a subset (one vector smaller) [tex]S' \subseteq S[/tex] that has the same span.

Therefore, since [tex]p_3(t)=p_1(t)+p_2(t)[/tex]

[tex]Span\{p_1,p_2,p_3\}=Span\{p_1,p_2\}[/tex]

[tex]p_1$ and p_2[/tex] are linearly independent because [tex]p_1[/tex] cannot be written in terms of [tex]p_2[/tex].

Therefore, [tex]\{p_1,p_2\}$ is a basis of Span\{p_1,p_2,p_3\}$ as required.[/tex]

A linear dependence relation among the polynomials p₁, p₂, and p₃ is given as p₁ + p₂ = p₃

Polynomial is an algebraic expression that consists of variables and coefficients. Variable are called unknown. We can apply arithmetic operations such as addition, subtraction, etc. But not divisible by variable.

Consider the polynomials are

[tex]\rm p_1(t) = 1 + t\\\\ p_2(t) = 1 -t \\\\ p_3(t) = 2[/tex]

a linear dependence relation among p₁, p₂, and p₃ will be

Let add the  p₁ and p₂, we have

1 + t + 1 -t = 2

We get the polynomial p₃.

Thus the linear relation is p₁ + p₂ = p₃

More about the polynomial link is given below.

https://brainly.com/question/17822016

Answer:

Step-by-step explanation:

We have to perform one sample proportion test. To do so we have to proceed through following steps.

(1) We have to collect data about vehicle sales in last 20 years.

(2) Using random number table or random number generator or otherwise we have to select sample of vehicles from the list of sale. In this step, we have to keep an eye on the fact that sample is to be selected from all years (all of 20). Using stratified random sampling by dividing vehicles sold over different years is an effective way to do so. That means, we may divide vehicles sold into 20 homogeneous strata over 20 years and select sample from each strata.

(3) After selecting sample of vehicles we have to communicate to corresponding vehicle owners to gather information about that particular vehicle.

(4) We have to note number of vehicles which are still on the road.

Suppose, we have selected  n vehicles as sample and after communicating we found that \tiny r of those are still on the road.

We have to test for null hypothesis [tex]H_0:p=0.80[/tex]

against the alternative hypothesis [tex]H_1 \neq 0.80[/tex]

Our test statistic is given

[tex]z=\frac{\hat p - p_0}{\sqrt{p_0(1-p_0)/n} }[/tex]

here,

[tex]\hat p =\frac{r}{n}[/tex]

[tex]p_0 =0.80[/tex]

[tex]z=\frac{r/n-0.80\sqrt{n} }{0.40} \\\\=2.5(\frac{r}{n} -0.8)\sqrt{n}[/tex]

We then calculate corresponding p-value.

We reject our null hypothesis if [tex]\text{p-value}<\alpha[/tex] , level of significance.

According to our obtained p-value and level of significance we proceed to certain conclusion.

Answer:

(0,0)

Step-by-step explanation:

The Graph shows that 0,0 is the first x-y value which is vertex

Answer:c

Step-by-step explanation:

Answer:

From our calculations the large jar is the best value for money because a penny buys more honey

Step-by-step explanation:

We will determine which has the best value for money using the quantity a pound can purchase.  

firstly for the large jar.

if £4.10 will purchase 540g of honey then,

   £1.00 will purchase xg

cross multiplying to find x will have

[tex]x=[/tex]  [tex]\frac{1.00*540g}{4.10}[/tex]

[tex]x= 131.7grams[/tex]

Hence for the large jar a penny would buy 131.7g of honey

secondly for the small jar

if £2.81 will purchase 360g of honey then,

   £1.00 will purchase xg

cross multiplying to find x will have

[tex]x=\frac{1.00*360g}{2.81}\\x= 128.1gram[/tex]

Hence for the small jar a penny would buy 128.1g of honey

Answer:

7.4736

Step-by-step explanation:

A = 144% of 5.19 means: A = (144/100) x 5.19 =  7.4736

Hope this helps!

Answer:

The correct answer to the following question will be Option 1 (All Montana residents).

Step-by-step explanation:

Other choices aren't linked to just the scenario in question. Option 1 seems to be the perfect solution.

Answer:

Kojo had 1800 bags of rice in stock for sale.

In January, he sold 2/3 of it.

=> Number of bag he sold in January: 1800 x 2/3 = 1200

=> The number of bags of rice left: 1800 - 1200 = 600

In February, he sold 3/4 of what was left.

=> Number of bag he sold in February: 600 x 3/4 =450

=> Total number of bags he sold in January and February:

1200 + 450 = 1650

=> The number of bags of rice left at the end of February: 600 - 450 = 150

Hope this helps!

:)

Answer:

A. It provides health insurance for people who are retired or disabled.

Step-by-step explanation:

FICA stands for Federal Insurance Contributions Act, which is a law. It is a compulsory tax from the payroll of all employees in the United State to provide health insurance for retired as well as disabled people. It has a definite percentage with no conditional or exemption deductions to assist the government to fund social security and medicare.

This make it possible for the government to cater for the two sects of people  in the society that are registered easily.

Answer:

B

Step-by-step explanation:

the negative on the outside makes it a reflection over the x-axis

Answer:

b

Step-by-step explanation:

because if you say make up points the plot them then youll see there across from each other

Question:

For the following exercise, determine the range (possible values) of the random variable. A batch of 500 machined parts contains 10 that do not conform to customer requirements. Parts are selected successively, without replacement, until a nonconforming part is obtained. The random variable is the number of parts selected.

Answer:

Possible values are all integers from 1 to 491.

{1,2,...........491}

Step-by-step explanation:

Given:

Total number of machined parts = 500

Number that do not conform to customers requirements = 10

Number that conforms to customers requirements = 500 - 10 = 490

Since, parts are selected successively, without replacement, until a nonconforming part is obtained, the range of the random variable (number of parts selected) here will be all integers from 1 to 491 ie {1,2,...........,491}.

Here, we have a total of 490 conforming parts, and 10 non conforming parts, there must be a non-conforming part among 491 selections, considering the fact that total number of parts are 500

There will be one non-confirming part in the 491 selections and this can be determined by using the given data.

Given :

Given that the total number of parts is 500 that contains 10 that do not conform to customer requirements. So, the total number of parts that conform to customer requirements is (500 - 10) 490.

It is also given that parts are selected successively, without replacement, until a nonconforming part is obtained so, the range of the random variables is [1,491]

So, there will be one non-confirming part in the 491 selections.

For more information, refer to the link given below:

https://brainly.com/question/23044118

Answer:

Step-by-step explanation:

3x-4y=65

3x=65+4y

x=(65+4y)/3, when y=4

x=(65+4*4)/3

x=(65+16)/3

x=81/3

x=27

Answer:

.250 L

Step-by-step explanation:

We know that 1 L = 1000 mL

250 mL * 1L /1000 mL = .250 L

Answer:

Step-by-step explanation:

its 1/25 or .25 liters. A milliliter (ml) is one thousandth of a liter, so 1000 ml would be 1 liter. Btw, why is he measuring broccoli in ml?

Answer:

Step-by-step explanation:

A) We are given two pairs of (t, P): (0, 48000), (8, 44880). We can use these with the 2-point form of the equation of a line:

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

  P = (44880 -48000)/(8 -0)(t -0) +48000

  P = -3120/8t +48000

  P = -390t +48000

__

B) In 2003, t = 11, so we have ...

  P = -390(11) +48000 = 43710

The population in 2003 is predicted to be 43,710.

Answer:

[tex] Range = 60-5=55[/tex]

In order to find the variance and deviation we need to find the mean with this formula:

[tex] \bar X = \frac{\sum_{i=1}^n X_i}{n}[/tex]

And replacing we got:

[tex] \bar X =36.07 [/tex]

Now we can find the variance with the following formula:

[tex]s^2 =\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}[/tex]

And replacing we got:

[tex] s^2=357.610[/tex]

And the standard deviation would be:

[tex] s = \sqrt{357.610}= 18.911[/tex]

For this case since the range observed is large is better to use a measure of variation in order to check the spread of the values and take a decision useful

Step-by-step explanation:

For this case we have the following dataset:

60 58 55 53 47 45 44 43 25 25 20 18 7 5

We can find the range with this formula:

[tex] Range = Max-Min[/tex]

And replacing we got:

[tex] Range = 60-5=55[/tex]

In order to find the variance and deviation we need to find the mean with this formula:

[tex] \bar X = \frac{\sum_{i=1}^n X_i}{n}[/tex]

And replacing we got:

[tex] \bar X =36.07 [/tex]

Now we can find the variance with the following formula:

[tex]s^2 =\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}[/tex]

And replacing we got:

[tex] s^2=357.610[/tex]

And the standard deviation would be:

[tex] s = \sqrt{357.610}= 18.911[/tex]

For this case since the range observed is large is better to use a measure of variation in order to check the spread of the values and take a decision useful

Step-by-step explanation:

use the formula in picture