Can someone please help?

Answer:

The correct option is option A

A. The statement is false. Each matrix is row equivalent to one and only one reduced echelon matrix

Step-by-step explanation:

The matrix in echelon form is not in a unique form, as such row reduction can yield an infinite amount of answers. However a row reduced echelon form is unique and will give the same answer in every order that the row operation is performed

The statement is false. Each matrix has only one unique row echelon form, therefore, the correct option is option A.

Answer:

5

Step-by-step explanation:

Answer:

The answer would be 81,000

Step-by-step explanation:

Answer:

The answer is 81,000

Step-by-step explanation:

If you multiply 30x30x30+30x30x60=81,000

Answer:

5x-2

Step-by-step explanation:

2x+3x=5x

5-7=-2

Answer:

5x+-2

Step-by-step explanation:

(2x+5) + (3x-7)

2x+3x=5x

5-7=-2

5x-2

The answer is B (There is evidence that a Type BBB  orange typically weighs more than a Type AAA orange.) this is right on edulastic

Answer: the answer is a

Step-by-step explanation:

Answer:

the answer is A

because translating is just shifting

Answer:

x=12

Step-by-step explanation:

angle a equals 30.964

angle e equals 59.036

This is the key information, from there you can calculate it out anyway you like.

We know the width of the rectangle in the middle of the trapezoid is 24 (from the top of the image), so we can subtract that from the bottom width of the trapezoid to get the combined length of the bottom of both triangles.

[tex]40 - 24 = 16[/tex]

Since this is an isosceles trapezoid, both triangle bases are the same length, so we can cut this value in half to get the length of [tex]GT[/tex] and [tex]EF[/tex]

[tex]\frac{16}{2} = 8[/tex]

Finally, we can use the Pythagorean Theorem to find the length of [tex]AG[/tex]:

[tex]AG^{2} + GT^{2} = AT^{2}[/tex]

[tex]AG^{2} + 8^{2} = 10^{2}[/tex]

[tex]AG^{2} + 64 = 100[/tex]

[tex]AG^{2} = 36[/tex]

[tex]AG = 6[/tex]

Answer:

[tex]Amount = 55440in^3[/tex]

Step-by-step explanation:

Given [Missing piece]

[tex]h = 9in[/tex] --- height

[tex]r = 7in[/tex] --- radius

[tex]n = 120[/tex] --- number of cones

Required

How much foam for 120 cones

First, calculate the volume of 1 cone

[tex]V = \frac{1}{3}\pi r^2h[/tex]

[tex]V = \frac{1}{3} * \frac{22}{7} * 7^2 * 9[/tex]

[tex]V = \frac{1}{3} * 22 * 7 * 9[/tex]

[tex]V = 22 * 7 * 3[/tex]

[tex]V = 462in^3[/tex]

So, the amount of foams needed for 120 is:

[tex]Amount = 120 * V[/tex]

[tex]Amount = 120 * 462in^3[/tex]

[tex]Amount = 55440in^3[/tex]

Answer:

y = 3x + 3

Step-by-step explanation:

m = 3 because the slope rises 3 and runs 1, therefore 3/1 = 3

b = 3 because the y-intercept is (0,3), therefore y-int = 3

y = 3x + 3

Answer:

y=-2x+7

Step-by-step explanation:

You just subtract 2x from both sides to get y alone

Answer:

2x + y = 7

y = 7 -2x

Step-by-step explanation:

Answer:

The general form of the equation is;

25·x + 12·y = 75,000

x + y ≤ 6,250

When they work the same duration, the time the husband and wife works is approximately 2,071 hours each

When they contribute the same amount, the wife, works for x = 1,500 hours, while the husband works for y = 3,125 hours

Step-by-step explanation:

The amount the couple intends to save in 13 years = $75,000

The amount the wife makes  per hour = $25

The amount the husband makes per hour = $12

The number of working hours in 13 years is given as follows;

Total number of hours = 40 hr/week × 52 weeks/year × 13 years = 27,040 hours

However, when the husband alone works, we have;

75,000/12 = 6,250 hours

Let 'x' and 'y' represent the number of hours the wife and husband works respectively, we have the following system of equations;

The general form of the equation is;

25·x + 12·y = 75,000

x + y ≤ 6,250

When the couple work equal times

25·x + 12·y = 75,000...(1)

x = y...(2)

From equation (1), we have;

25·x + 12·y = 75,000

25·x + 12·x = 75,000

x = 75,000/37 ≈ 2,071 hours = y

The number of hours each will work is approximately 2,071 hours

When the husband and wife contribute the same amount, we have;

25·x = 12·y = 75,000/2

x = 75,000/(2 × 25) = 1,500

∴ x = 1,500 hours

The number of hours the wife works = 1,500 hours

y = 75,000/(2 × 12) = 3,125

∴ y = 3,125 hours

The number of hors the husband works = 3,125 hours

Answer:

P(A) = 4/7.

Step-by-step explanation:

Probability it does not occur = 3/7 so probability it does is 1 - 3/7.

P(A) = 1 - 3/7 = 4/7.

Answer:

105 degrees

Step-by-step explanation:

Since there mus tbe 180 degrees in a triangle 180-80=100 and then -25 is equal to 75. since the line is 180 degrees, 180-75 = 105

Answer:

Step-by-step explanation:

So this is a quadratic sequence.

3, 12, 22, 33, 45, 58, 72

 9   10   11    12   13   14  

9, 10, 11, 12, 13, 14

 1    1    1    1    1

This means the next one must be 15 so

3, 12, 22, 33, 45, 58, 72, x

 9   10   11   12   13   14   15

x= 72+15

x= 87

Answer:

1/6 is the slope

Step-by-step explanation:

1/6x = y is the equation

Answer:

this is six times bigger larger

Answer:

Step-by-step explanation:

Answer:

Dog - K.C.

Horse - Bo

Bird - Cricket

Cat - Tuffy

The solution is

The name of the dog = K.C.

The name of the horse = Bo

The name of the bird = Cricket

The name of the cat = Tuffy

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A can be calculated as

The species of pets in set A = { Dog , Horse , Bird , Cat }

The names of the pets in set B = { K.C. , Bo , Cricket , Tuffy }

The expressions are

Now , Tuffy and K. C. cannot fly or be ridden

So , Tuffy and K.C. are either the cat or the dog

And , Tuffy runs from the dog

So , Tuffy is the cat and K.C. is the dog from the expression

The bird talks to Bo , so Bo is not the bird

So , from the expression , we get

Therefore , the name of the horse is Bo and name of the bird is Cricket

Hence ,

The name of the dog = K.C.

The name of the horse = Bo

The name of the bird = Cricket

The name of the cat = Tuffy

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ2

Answer:

2.3

Step-by-step explanation:

Answer:

Cicumference, area, diameter, and radius.

Step-by-step explanation:

You asked, I answered.

Hope this helped! :)

Answer:

what's this?

Step-by-step explanation:

Answer:

what the question?

Step-by-step explanation:

im sorry because i dont watch a anime

Answer:

y= -0.2x+14

Step-by-step explanation:

you have to do y2-y1/x2-x1 of any two coordinates or points so you could do 9.8-10.2/21-19 then you get -0.4/2 and that equals -0.2 so -0.2 is now ur slope or M. Next you pick any coordinate like (19,10.2) and you plug that into ur y=mx+b to find the b since you have found the m already from y2-y1/x2-x1. You could do 10.2= 19(-0.2)+b once you do the algebra to solve this you get 14 as your b or y intercept

Answer: 65

Step-by-step explanation:

Since the mean mark of the 9 students is 50. Their total marks will be:

= 9 × 50

= 450

Since the marks obtained by 8 students are given, we add the marks together and this will be:

= 60+40+50+30+80+40+45+40

= 385

The score of the 9th student will be:

= 450 - 385

= 65

Answer:

30. $25.42

31.  $21.48

32. $23.06

Step-by-step explanation:

30.  8.54+7.50+9.38 = 25.42

31.  6.99+5.99+8.50 = 21.48

32.   8.50+5.33+9.23 = 23.06