Help me on letter b please

Help Me On Letter B Please

Answers

Answer 1
Use the commutative property to reorder the terms.
Then, simplify the product.
Finally, subtract the numbers.
Your final answer is 3.
Answer 2

Answer:

Answer: 2

Step-by-step explanation:

[tex](a-b)(a+b)=a^{2}- b^{2}[/tex]

[tex](\sqrt{5}-\sqrt{2} )(\sqrt{2}+\sqrt{5} )\\(\sqrt{5})^{2} -(\sqrt{2} )^{2}\\5-2=3[/tex]


Related Questions

Simplify 4(-8x + 5) – (-33x – 26)

Answers

Answer:

the answer is most likely to be (x+46)

Polygon MNP shown on the coordinate planeA dilation centered about the origin will be performed on the polygon with vertices M(- 18, 12) forall(8,10),8(-6,8) and Q(- 8, - 8)

Answers

Answer:

N'(4, 5)

Step-by-step explanation:

The correct question is attached.

Transformation is the movement of a point from its initial location to a new location. Types of transformation are reflection, rotation, dilation and translation.

Dilation is a transformation that changes the size of a figure (i.e. it increases or reduces the size).

If a point A(x, y) is dilated by a factor k, the new point is at A'(kx, ky).

The location of the polygon vertex is at M(-16, 12), N(8, 10), P(-6, 8) and Q(-8, -8).

After dilation, the new location of M is at M'(-8, 6)

M(-16, 12) ⇒ M'(-8, 6)

M(-16, 12) ⇒ M'[1/2(-16), 1/2(12)]

Hence the dilation factor is 1/2. This means that the new vertex is at:

N'(4, 5), P'(-3, 4) and Q'(-4, -4).

A linear regression equation is computed for a sample of n = 13 pairs of X and Y scores. For the analysis of regression testing the significance of the equation, what are the df values for the F-ratio?

Answers

Answer:

The degrees of freedom are

                         ν₁ = n₁ -1 = 13 -1 = 12

                          ν₂= n₂-1 = 13 -1 =12

Step-by-step explanation:

Step(i):-

Given size 'n' = 13

size of sample of X score     n₁ = 13

size of sample of Y score     n₂ = 13

The degrees of freedom are

                         ν₁ = n₁ -1 = 13 -1 = 12

                          ν₂= n₂-1 = 13 -1 =12

Test statistic formula

                    [tex]F = \frac{S_{1} ^{2} }{S_{2} ^{2} } if S_{1} ^{2} > S_{2} ^{2}[/tex]

                       

Please help. Line l is parallel to line m. Find the value of x.

Answers

Answer:

x = 32

Step-by-step explanation:

2x and 64° are corresponding angles and are congruent, thus

2x = 64 ( divide both sides by 2 )

x = 32

Six lines are drawn in the coordinate plane below.
2

Which line has a negative slope?
Select all that applys
A.PR
B.SR
C.PQ
D.PS
E.QS
F.QR

Answers

Answer:

PQ

SR

PR

Step-by-step explanation:

they are all going down while the others rise

THIS IS EASY!! PLS HELP ME! ASAP PLS

Eliza claims that the two squares are congruent. Which statement could be used to prove Eliza's claim?

A) Any two squares are congruent since all squares have angles of 90 degrees

B) The two squares are congruent since a translation carries one square onto the other.

C) Any two squares are congruent since all four sides of any square are congruent.

D) The two squares are congruent since a rotation about the origin carries one square onto the other.

Answers

Answer:

A

Step-by-step explanation:

I Hope this helps you out!

Eliza claims that the two squares are congruent. The statement that could be used to prove Eliza's claim can be found in Option A.

Any two squares are congruent since all squares have angles of 90 degrees.

A figure is said to be congruent if they have similar angles and the position of each shape corresponds to each other.

From the given figure attached to the question, we can see that the two shapes in the figure are squares, and they are located at 2 units each from the origin. The angles of each shape are 90° to the horizontal line and they are perpendicular to each other.

 

The two squares may not be congruent since not only translation carries one square onto the other, from the figure in the question, it may be a reflection and not only translation.

Also, only the sides of a shape cannot be used as a determining factor to determine if a shape is congruent or not.

Therefore, we can conclude that any two squares are congruent since all squares have angles of 90 degrees.

Learn more about congruent angles here:

https://brainly.com/question/16448127?referrer=searchResults

Which of the following is a solution to the system? Show your work.

3x+2y=-3

3x-y=6

Group of answer choices

(-1, 0)

(1, -3)

(2, 0)

LaTeX: (0,-\frac{3}{2})

Answers

Answer:

(1, -3) is a solution to the system of equations ⇒ B

Step-by-step explanation:

Let us solve the system of equations

3x + 2y = -3 ⇒ (1)

3x - y = 6 ⇒ (2)

→ Subtract equation (2) from equation (1)

∵ (3x - 3x) + (2y - -y) = (-3 - 6)

∴ (0) + (2y + y) = (-9)

∴ 3y = -9

→ Divide both sides by 3 to find y

y = -3

→ Substitute the value of y in equation (2) to find x

∵ 3x - (-3) = 6

∴ 3x + 3 = 6

→ Subtract 3 from both sides

∵ 3x + 3 - 3 = 6 - 3

∴ 3x = 3

→ Divide both sides by 3 to find x

x = 1

To check the answer substitute the values of x any in each equation if the two sides of the equation are equal, then the solution is right

∵ 3x + 2y = -3

∵ 3(1) + 2(-3) = -3

∴ 3 - 6 = -3

-3 = -3

→ The two sides of the equation are equal

∵ 3x - y = 6

∵ 3(1) - (-3) = 6

∴ 3 + 3 = 6

6 = 6

→ The two sides of the equation are equal

∴ The solution satisfies the two equations

(1, -3) is a solution to the system

Which sets of ordered pairs represent a function? Select all that apply.
A {(3,5), (4, -1), (2, -1), (2, 7), (-3, 6)}
B {(-3, 9), (-2, 4), (-1, 1), (0, 0), (1, 1)}
C {(1, 1), (4, 2), (9, 3), (16, 4), (25, 5)}
D {(9, -3), (4, -2), (1, -1), (0, 0), (1, 1)}

Answers

Answer:

C because X values can't be repeated

Step-by-step explanation:

Please help me on this

Answers

Answer:

a: -1,-1

b: 2,3

c:6,7

d: 5, 7

Step-by-step explanation:

Answer:

A -1,-1

B 2,3

C 6,7

D 5,-3

Step-by-step explanation:

You have to plug in each plotted point into the formula that was given to you.

Ex - A is plotted point is (-4,-3) so you plug in (-4+3,-3+2) which will give you (-1,-1)

Meg is a veterinarian. She found that 10,or 33%,of the dogs she saw this week were boxers. Steve is also a veterinarian. He found that 4 of the 20 he saw this week were boxers. Does each person need to find the​ part, the​ whole, or the​ percent?

Answers

the part not the whole

Find the value of x and y

Answers

Answer:

x=45 degrees

y=45 degrees

Step-by-step explanation:

Answer: y = 50; x = 34

ABCD is a  quadrilateral inscribed in the circle

=> ∠ABD = ∠ACD

⇔ x = 34°

and ∠ADB = ∠ACB

we also have:

∠DCE + ∠ DCB = 180°

⇔ 96° + x + ∠ACB = 180°

⇔ ∠ACB = 180 - 96 - x = 180 - 96 - 34 = 50

because ∠ADB = ∠ACB => y = 50°

Step-by-step explanation:

geo quiz!! don’t understand at all

Answers

3rd one? I’m not 100% sure but good luck

Jordan has traveled 255 miles out of 340 miles on a trip. What percent of the total distance has he traveled?
A. 73%
B. 82%
C.75%
D. 70%

Answers

Answer:

75%

Step-by-step explanation:

Just do long division and get c.75%

Pls mark brainliest

Answer:

75%

Step-by-step explanation:

I swear it is right.

Need these proofs solved ASAP 45 pts I will give brainliest

Answers

Answer:

Step-by-step explanation:

im not sure buddy

The kindergarten section of Lost Valley School has 12 classrooms. If each classroom
has 15 students how many total kindergarten students are at Lost Valley School?

Answers

Answer:

180

Step-by-step explanation:

12x15=180 simple

If AABC = ADFE determine the values of x and y.
B
32.1
99°
38.4
45°
36
A
54
F
(8y -- 5)º
2y + x
D
E

Answers

[tex]8y - 5 = 99 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 8y = 99 + 5 \\ \: \: \: \: \: \: \: \: \: \: 8y = 104 \\ \: \: \: \: \: \: \: \: \: \: \: \: y= \frac{104}{8} \\ \: \: \: \ \: \: \: y = 13[/tex]

[tex] \: \: \: \: \: \: 2y + x = 38.4 \\ 2(13) + x = 38.4 \\ \: \: \: \: \: \: 26 + x = 38.4 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = 38.4 - 26 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = 12.4[/tex]

Pls help ;-;
Which number line shows all the values of x that make the inequality
-3x + 1 < 7 true?​

Answers

Answer:

C

Step-by-step explanation:

A closed circle means inclusive, and -2 is included in values that would make the equation true. Then you just have to test another number greater than and less than -2 to see which way the arrow should point.

-3(-3) + 1 < 7

9 + 1 < 7

10 < 7 FALSE

-3(0) + 1 < 7

1 < 7 TRUE

All values (including -2) will make this equation true

Question:

Which number line shows all the values of x that make the inequality

-2x - 7 ≥ 13 true?

Solve the system by substitution.

-3x-4y=11

y=2x

Answers

Answer:

x = -1, y = -2

Step-by-step explanation:

-3x-4y=11

y=2x

Plug in 2x for y:

-3x-4(2x)=11

-3x-8x = 11

-11x = 11

x =-1

Plug in x in y = 2x

y = 2(-1)

y = -2

Answer:(-1,-2)

Step-by-step explanation:

Trevor read a total of 36 books over 9 months. If Trevor has read 52 books so far, how many months has he been with his book club? Assume the relationship is directly proportional.

? months
I HAVE MORE QUESTIONS

Answers

The answer is 13 months because if he read 36 books in 9 months then he would read 4 books per month. If you do 52/4 you get 13.

In Beijing in 2008, the Women's 3,000 meter Steeplechase became an Olympic event. What is this distance in kilometers

Answers

Answer:

The distance would be 3 kilometers

Step-by-step explanation:

Each kilometer is 1,000 meters. Divide 3,000/1,000= 3

Complete the explicit formula for the sequence.

42, 47, 52, 57, 62, ...

Answers

Answer:

Step-by-step explanation:

67,72..

A popumation of bacteria quadruples (x4) every hour, the initial population is 30.
A.) Find the population at the end of seven hours.
B.) After how many hours will the population equal 7,864,320?

Answers

I believe A, correct me if I’m wrong

The volume of 100 drops of a liquid is 0.1 fluid ounces what is the volume of 10,000 drops

Answers

Answer:

0.001 fluid oz.

Step-by-step explanation:

100 : 0.1 = 10,000 = 0.001

7.2x10⁷ = (2x10⁴) (3.6x10^n) what is the value of N​

Answers

Answer:

The N value represents a standard value of energy required to penetrate 30 cm into soil by percussion drilling. It is standardized as the energy of a falling hammer from a height of 0,76 m.

Step-by-step explanation:

What is 4and2/14 as an improper fraction in lowest terms

Answers

Answer: 58 14ths

Step-by-step explanation:

multiply 14 by 4 to get 56 14ths, then add the 2

Answer:

58/14

Step-by-step explanation:

4 and 2/14= 4*4*4*4 = 56 + 2 = 58/14

Determine if each sequence is an arithmetic sequence. If yes, find the common difference.
1. 10,12,15,19,…
2. If there is, what is the common difference?

Answers

Answer: Yes, add one more each time you add

Step-by-step explanation:

No, the sequence is not arithmetic.

The difference between 10 and 12 is 2.
The difference between 12 and 15 is 3.
The numbers increase by different amounts each time, not by a constant amount, thus the sequence is not arithmetic.

PLEASEEE HELP ILL GIVE BRAINLIEST btw there are 2 attachments so u could see all the answer choices

Answers

Answer:

1) C

Step-by-step explanation:

Step 1)

First we have to plot ↓

2x ≥ y + 2

And that looks like Image 1

Step 2)

Second we have to plot ↓

2x - 5y ≤ 10

and that looks like Image 2

5 divided by 9/10 as a fraction

Answers

Answer:

5/1. 9/10 ÷ 5 = 9/50

Step-by-step explanation:

a whole number 5 can be written as 5/1. 9/10 ÷ 5 = 9/50 in fraction form.

hope this helped. Let me know if i was right. Im sorry if I was wrong Im not so good at math.

purchased a DVD player on sale. The original selling price was ​$. The sale price was ​$.

Answers

what are the prices?

A haircut cost $15. I left a 20% tip. How much was the haircut including the tip? PLEASE ANSWER WITH WORK

Answers

Answer:

$18

Step-by-step explanation:

15*.2=3

15+3=18

The haircut is $18 with tip included.

Answer:

$18

Step-by-step explanation:

15 haircut tip 20%

15 x .20= 3

15 + 3 =  18

divide the percent by 100 to get it in decimal form.

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