Which expressions are equivalent to the given expression?v252

Answers

Answer 1

Answer:

a and b

Step-by-step explanation:


Related Questions

What is the slope of the line 1/7

Answers

Answer:

3/4

Step-by-step explanation:

Well its a incomplete Question but i am solving a realted type Question .

• Find the slope of the line -3x - 4y = 12 :-

Ans ) The given equation can be converted into Slope intercept form , which is y = mx + c , where ,

m is slope c is y Intercept

⇒ -3x -4y = 12

⇒ -4y = 12 +3x

⇒ y = 3x + 12 /4

⇒ y = 3/4x + 12/3

y = ¾x + 4

Comparing to Standard Form

⇒ m = ¾

⇒ c = 4

Hence the slope of the line is 3/4.

Identify the association comparing age of a teacher and the number of students in his or her classroom

Answers

H⁣⁣⁣⁣ere's l⁣⁣⁣ink t⁣⁣⁣o t⁣⁣⁣he a⁣⁣⁣nswer:

bit.[tex]^{}[/tex]ly/3a8Nt8n

The sum of one and the product of 1 and a number X​

Answers

Answer:

1 + x

Step-by-step explanation:

1 + 1(x) = 1 + x

Answer:

[tex]\huge\bold\purple{1 + x}[/tex]

Step-by-step explanation:

[tex]\bold\purple{1 + 1(x) = 1 + x}[/tex]

Solve the equation. 2cos2(x+30°)=1 for 0°≤x≤360°​

Answers

2*[tex]cos(x+30)^{2}[/tex]=1

x = 15

Which of the following sets of vectors in R3 are linearly dependent?
Note. Mark all your choices.

Answers

9514 1404 393

Answer:

  B, C

Step-by-step explanation:

Linearly dependent sets can be found using row-reduction techniques. If a row ends up zero, then the set is linearly dependent. Equivalently, the determinant of a 3×3 matrix can be computed. If it is zero, the set is dependent. The cross-product of two 3-D vectors can be computed. If it is zero, the vectors are dependent.

Any set of vectors that has more elements than each vector does must necessarily be dependent.

It is helpful to be able to use a calculator capable of performing these calculations (as opposed to doing it by hand). The first attachment shows the result of computing the reduced row-echelon form of the first set of 3 vectors. The set is found to be independent.

__

The second set of vectors is clearly dependent, as the second vector is 5 times the first.

__

The third set contains more vectors than there are elements to a vector. Hence at least one of them can be created using some combination of the others. This set is dependent.

__

The cross-product of the fourth set is non-zero, so it is independent. The second attachment shows the result of a row-reduction tool on these vectors.

Find the value of X in the triangle shown below. X° 112° 19°

Answers

The answer is 49,
112+19= 131 which means 180-131 is 49

Alligators perform a spinning​ maneuver, referred to as a​ "death roll," to subdue their prey. In a study of alligator death​ rolls, one of the variables measured was the degree of the angle between the body and head of the alligator while performing the roll. A sample of rolls yielded the data provided​ below, in degrees. At the ​% significance​ level, do the data provide sufficient evidence to conclude​ that, on​ average, the angle between the body and head of an alligator during a death roll is greater than ​? ​(Note: and s. Preliminary data analyses indicate that you can reasonably use a​ t-test to conduct the hypothesis​ test.)

Answers

Complete question :

Alligators perform a spinning maneuver, referred to as a "death roll," to subdue their prey. In a study of alligator death rolls, one of the variables measured was the degree of the angle between the body and head of the alligator while performing the roll. A sample of 20 rolls yielded the data provided below, in degrees. At the 1% significance level, do the data provide sufficient evidence to conclude that, on average, the angle between the body and head of an alligator during a death roll is greater than 45 ? Note: x =46.255° and s = 12.251° Preliminary data analyses indicate that you can reasonably use a t test to conduct the hypothesis test.

Answer:

H0 : μ = 45

H1 : μ > 45

T statistic = 0.4472

Pvalue = 0.3299

We fail to reject the Null

Step-by-step explanation:

H0 : μ = 45

H1 : μ > 45

Test statistic, T :

(xbar - μ) ÷ (s/√n)

(46.225 - 45) ÷ (12.251/√20)

1.225 ÷ 2.7394068

= 0.4472

Using the Pvalue calculator, the Pvalue can be obtained using the test statistic and degree of freedom

Degree of freedom, df = 20 - 1 = 19

Tscore = 0.4472

α = 0.01

Pvalue = 0.3299

Pvalue > α

0.3299 > 0.01 ; Hence, we fail to reject the Null

We fail to reject the Null; The data does not provide sufficient evidence to conclude that average angle between alligator's body and its head is greater than the 45

A chi-square test of independence was conducted to investigate whether there is an association between the location where a person lives in a city (north, south, east, or west) and who the person planned to vote for in the upcoming mayoral election (the incumbent or the challenger). A random sample of 100 potential voters was selected, and the hypothesis test had a chi-square test statistic of x^2=9.84 with a p-value of 0.02. Which of the following statements is the correct interpretation of the pp-value in context?

a. There is a 2 percent chance that where a person lives and who that person plans to vote for are independent.
b. There is a 2 percent chance that where a person lives and who that person plans to vote for are dependent.
c. There is a 2 percent chance of making a Type IIII error.
d. Assuming that the location of where a person lives and who that person plans to vote for are dependent, there is a 2 percent chance of finding a test statistic that is 9.84 or greater.
e. Assuming that the location of where a person lives and who that person plans to vote for are independent, there is a 2 percent chance of finding a test statistic that is 9.84 or greater.

Answers

Answer:

The answer is "Option e".

Step-by-step explanation:

The Chi-Square Independence Test determines if the variables or linked among measurement items factors. It test is indeed not symmetric. It is also known as Interaction Chi-Square Test. Therefore it is also a 2% likelihood of obtaining a test statistic which is 9.84 or higher unless the place where a person is living, but for whom each plans to vote is different.

plz help for brianly

Answers

Answer:

190.

Step-by-step explanation:

help please please please ​

Answers

Answer:

they are both going in the same dirrection but this does not mean they are parrallel or perpendicular.

Step-by-step explanation:

So just say neither

Answer:

they are not parallel nor perpendicular to each other i am assuming you can write out the full sentsentence your self

Step-by-step explanation:

GIVING BRAINLEST PLEASE ANSWER ALL :)

Answers

Imm noottttt sure sryyy

A kangaroo hops 2 kilometers in 3 minutes. At this rate, the kangaroo will travel kilometers in 15 minutes.

Answers

Answer:

the kangaroo will travel 10 kilometers

Step-by-step explanation:

15/3=5

5×2=10

Answer:

10

Step-by-step explanation:

We can use the ratio:

3:2

15:?

15/3 is 5

2*5 is 10.

An eight-sided die has the numbers 1 through 8 on its eight faces. What is 2 points
the expected value when rolling the die? *
O 3.6
04
4.5
06

Answers

Answer:

4.5

Step-by-step explanation:

(1/8)*1 + (1/8)*2 + (1/8)*3 + ... +(1/8)*8

or

(1/8)*(1  2 + 3 + 4 + 5 + 6 + 7 + 8) = (1/8)*36 = 4.5

We can use a shortcut to sum the numbers 1 through 8.  It is given by 8*(8+1)/2.

In a video game a centipede follows a path that can be particularly modeled by the function f(x)=x(x-5)(x-3) what are the zeros of this function

Answers

Answer
D) 0 , 5 , 3
Explanation

The zeros of the given polynomial function are 0, 5 and 3. Therefore, option D is the correct answer.

What are the zeros of the polynomial function?

The zeros of polynomial refer to the values of the variables present in the polynomial equation for which the polynomial equals 0.

The given polynomial function is f(x)=x(x-5)(x-3).

Here, x(x-5)(x-3)=0

x=0, x-5=0, x-3=0

x=0, x=5 and x=3

The zeros of the given polynomial function are 0, 5 and 3. Therefore, option D is the correct answer.

To learn more about the polynomial function visit:

https://brainly.com/question/12976257.

#SPJ2

Solve each system by eliminating one of the variables by addition or
subtraction.

Answers

Answer:

Step-by-step explanation:

hello :

here is an solution

Please help!!!? Find m

Answers

Answer:

Step-by-step explanation:

[tex]m\angle F =tan^{-1}\frac{4}{6}\\m\angle F =33.690067526\degree\\m\angle F =33.7\degree[/tex]

Question 7 of 10 What is the interquartile range (IQR) of the data set represented by this box plot? ਤੇ 61 B9 ਮ A. 37 E. 5 C 1​

Answers

Answer:

Find an interquartile range for an odd set of numbers: Second ... — (1, 2, 5, 6, 7, 9), (9, 12, 15, 18, 19, ... Box Plot interquartile range: How ... Example question: Find the interquartile ... Q1 is represented by the left ... (GPA) in the following data set: ... The “1” in this Excel formula(A2:A10,1) represents the ...

Step-by-step explanation:

Answer:

D. 22

Step-by-step explanation:

Your answer is correct sir :)

Order these fraction from to : 2/3 , 7/12 , 3/4

Answers

I didn't really know whether to do it from least to greatest or greatest to least, so I did it from least to greatest.

Steps:

1. Find a common denominator

Let's do 12

2. Convert

7/12 is already in its simplest form, so 2/3 = 8/12 and 3/4 = 9/12

3. Order

7/12, 8/12, 9/12

4. Back to original form

7/12, 2/3, 3/4

ANSWER: 7/12, 2/3, 3/4

Answer:

2/3, 3/4, 7/12

Step-by-step explanation:

Least to greatest. Sorry if this was not what u were asking for.

20 Points Please help me

Answers

Answer:

98 inches

Step-by-step explanation:

Multiply the top length by the bottom length

what is the slope of the line

Answers

Answer:

3

Step-by-step explanation:

3/1

Represent each of these temperatures in degrees Fahrenheit with a positive or negative number. 5 degrees above zero 3 degrees below zero 6 degrees above zero 234 2 3 4 degrees below zero Order the temperatures above from the coldest to the warmest.

Answers

Answer:

5 degrees above Zero = greater than 0 = + 5

3 degrees below Zero = less than 0 = - 3

6 degrees above Zero = greater Than 0 = + 6

2 3/4 degree below Zero = less than 0 = - 2 3/4

-3 ; - 2 3/4 ; + 5 ; + 6

Step-by-step explanation:

5 degrees above Zero = greater than 0 = + 5

3 degrees below Zero = less than 0 = - 3

6 degrees above Zero = greater Than 0 = + 6

2 3/4 degree below Zero = less than 0 = - 2 3/4

The least temperature value implies the coldest while the highest implies the warmest :

Therefore.

Least temperature = - 3 ; then - 2 3/4 ; then + 5 ; then + 6

-3 ; - 2 3/4 ; + 5 ; + 6

The irrational number square root 67 is less than [blank]

Answers

Answer:

The square root of 67 is less than the whole number of 9

Step-by-step explanation:

8 squared is 64

9 squared is 81

67 is in between them

An object was launched from a given height. The
equation for the object's height over time is given
as: h= -16t^2 + 19.6t +58.8. What was the
object's initial height?

Answers

Answer:

Nut Gonna Help!

Keep Learning!

Step-by-step explanation:

An object was launched from a given height. The

equation for the object's height over time is given

as: h= -16t^2 + 19.6t +58.8. What was the

object's initial height?

I have no idea how to draw these please help

Answers

9514 1404 393

Answer:

  1, 2: draw x as the altitude of a right triangle

  3: draw x as double the altitude of the right triangle

Step-by-step explanation:

Consider the right-triangle geometry in the attachment. All of the right triangles are similar, so the ratios of corresponding sides are equal.

  short side / long side = x/r = s/x

You may notice this compares to the required relation in problem 1.

__

If you multiply this out, you get ...

  x² = rs   ⇒   x = √(rs)

This compares to the required relation in problem 2.

__

So, you append the two line segments to each other so they make segment AB, find their midpoint D (using a perpendicular bisector construction), then draw the (semi-)circle centered at that midpoint. The perpendicular at X will intersect the circle at C, a distance of x from the line rs. (A perpendicular to a line at a point construction is required to create XC.)

__

For problem 3, you simply need to double the length √(rs) that you found in the previous constructions. A simple way to do this is to draw a circle, not a semicircle. Then point C' on the lower half of the circle will be 2√(rs) from point C.

_____

In the attached, we have shown right triangle ABC for discussion purposes above. Segments AC and BC are not needed for your purpose.

Point of clarification: AX = r, BX = s, CX = x.

V 153
Given tan A= - and that angle A is in Quadrant IV, find the exact value of
sec A in simplest radical form using a rational denominator.
4

Answers

The secant of the angle A is 13/4

How to determine the value of sec(A)?

The given parameter is:

[tex]\tan(A) = -\frac{\sqrt{153}}{4}[/tex]

Using the trigonometry identity, we have:

[tex]\sec^2(A) = \tan^2(A) + 1[/tex]

This gives

[tex]\sec^2(A) = (-\frac{\sqrt{153}}{4})^2 + 1[/tex]

Evaluate the exponent

[tex]\sec^2(A) = \frac{153}{16} + 1[/tex]

Evaluate the sum

[tex]\sec^2(A) = \frac{169}{16}[/tex]

Take the square root of both sides

[tex]\sec(A) = \pm \frac{13}{4}[/tex]

Secant in quadrant IV is positive.

So, we have:

[tex]\sec(A) = \frac{13}{4}[/tex]

Hence, the secant of angle A is 13/4

Read more about trigonometry ratios at:

https://brainly.com/question/11967894

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What is the center of the circle given by the equation
(x - 2)^2 + (y + 4)^2 = 6?

A. (-2,-4)
B. (2,-4)
C. (-2,4)
D. (2,4)

Answers

Answer:

B: (2,-4)

Step-by-step explanation:

x-2=0

x=2

y+4=0

y=-4

Which equation best describes the functional
relationship in the data set?
[(-3,-7), (0, -1), (2,3))
A y= -4x-5
B y= -2x- 1
C y= 2x - 1
D y= 3x + 2

Answers

Answer:

C

Step-by-step explanation:

y=2x-1 your welcome I need to put more characters so skdjdnnn

Answer:

Y=2x-1

Step-by-step explanation:

the three data sets all work for y=2x-1

-7=-6-1

-7=-7

or

-1=0-1

-1=-1

or

3=4-1

3=3

The principal of the school is looking over grade reports, specifically scores on math quizzes.

This box-and-whisker plot shows the results.

Find median and range in the given box plot:





Answers

Answer:

Range = 45

Median = 75

Step-by-step explanation:

Based on the attached box and whisker plot :

From the plot :

Maximum value = 95

Minimum value = 50

The median value can be obtained from the box and whisker plot. The median value from the plot is ; the green dotted point inside the box :

This point is marked 75.

Hence, median value = 75

Range = maximum - minimum

Range =. 95 - 50 = 45

Luke build a storage box in the shape of a right rectangular prism dimensions inside the box are

Width-4 feet
Length-8 feet
Height- 3 1/2 feet

What is the total volume in cubic feet of the inside of the box
Also I’m not opening up links so please don’t put a link

Answers

Answer:

112 feet

Step-by-step explanation:

To find the volume of a rectangular prism do this equation: W x L x H = V

so for this question you would do, 4 x 8 x 3.5 which equals 112

answer and give proof and ill give brainliest

Answers

Answer:

I'm giving you the steps

Step-by-step explanation:

Add all the numbers shown then round them

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