what is the LCD of 1/a²-1 and 1/a+1​

Answers

Answer 1

Answer:

[tex]a^{2} -1[/tex]

Step-by-step explanation:

The LCD, or the lowest common denominator would be [tex]a^2-1[/tex]

If we multiply the second term [tex]\frac{1}{a+1}[/tex] by [tex]\frac{a-1}{a-1}[/tex] ([tex]\frac{a-1}{a-1}[/tex] is equivalent to 1, so we can do this,) we can see that the denominator would become the same as the first term [tex]\frac{1}{a^2-1}[/tex] by difference of squares. So that creates an LCD of [tex]a^2-1[/tex]

Answer 2

Answer:

see the person above

Step-by-step explanation:


Related Questions

The temperature of one furnace is 1,200°C and cools at a rate of 15°C per minute. The temperature of another furnace is 900°C and is heated at a rate of 5°C per minute. After how many minutes will the furnaces be the same temperature? Write the answer as a whole number or decimal.

Answers

Answer:

I just need points

Step-by-step explanation:

so I'm not sure

giving brainly if you actually checked and didn't guess.
is this correct? specifically not very sure with the 3/7.5 being equal with the rest​

Answers

Answer:

yes that is correct

Step-by-step explanation:

There are 20 students in the algebra class. One-half of the students were boys. One-half of the boys wore T-shirts. How many boys wore T-shirts to the algebra class? Boys wearing T-shirts were what fraction of the students in the class?

Answers

Answer:

¼ of the students

Step-by-step explanation:

½×20 = 10

½ × 10 = 5

[tex] \frac{5}{20} = \frac{1}{4} [/tex]

<3

Answer:

[tex] \frac{1}{4} [/tex]

Step-by-step explanation:

Refer the attachment for explanation

What number could be a common denominator for these two fractions?
3/10 and 1/5

Answers

Answer:

5 could be the common denominator

Step-by-step explanation:

10
The common denominator is 10

PLEASE HELP!!
What is the range of y=x+3^2?
A: all real numbers
B:{3^2}
C: all real numbers except 9.
D:{1,3,9}

Answers

Answer:

A

Step-by-step explanation:

Can someone help me with this?
You may answer as much as you can.​

Answers

Answer:

17 obtuse triangle

Step-by-step explanation:

hope it helps

Answer:

11. corresponding

12. consecutive interior

13. alternate exterior

14. alternate interior

15. corresponding

16. consecutive interior

17. alternate interior

What is the side length of square A?

Answers

Cubic measures?.. I dont know the proper term but my best guess is 5 cubic measures

What is the largest number?

Answers

Answer:

The biggest number referred to regularly is a googolplex (10googol), which works out as 1010^100. To show how ridiculous that number is, mathematician Wolfgang H Nitsche started releasing editions of a book trying to write it down.

Step-by-step explanation:

if this helped plz mark brainliest

5x(x−2)+6x−3(x^2−7)
is equivalent to which of the following expressions?

A) 2x^2+6x−9

B) 2x^2−4x−21

C) 2x^2−16x+21

D) 2x^2−4x+21

Answers

Answer:

D) 2x^2 - 4x + 21

Step-by-step explanation:

5x(x−2)+6x−3(x^2−7) = 2x^2 - 4x + 21

0 = 0

I used a calculator, pls let me know if im incorrect

The given expression 5x(x−2)+6x−3(x²−7) will be equivalent to 2x²- 4x + 21. The correct option is D.

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given expression is 5x(x−2)+6x−3(x²−7). The expression will be solved as below:-

E = 5x(x−2)+6x−3(x²−7)

E = 5x² - 10x + 6x - 3x² + 21

E = 2x² - 4x + 21

Therefore, the given expression 5x(x−2)+6x−3(x²−7) will be equivalent to 2x²- 4x + 21. The correct option is D.

To know more about an expression follow

https://brainly.com/question/24382052

#SPJ2

1b. True or False? Explain your answer without multiplying. 2 points
(2x - 3)(5x^2 - 2x + 6) = (3x-2)(5x^2 - 2x + 6)
ANSWER AND EXPLANATION:​

Answers

Answer:

False

Step-by-step explanation:

Solution 1

The easy way is to compare the leading terms or constants.

LHS

The leading term is:

2x*5x² = 10x³

The constant is:

(-3)*6 = -18RHS

The leading term is:

3x*5x² = 15x³

The constant is:

(-2)*6 = -12

We see both the leading terms (10x³ ≠ 15x³) and constants (-18 ≠ -12) are different so the equation is false.

Solution 2

We see one of the factors is same on both sides:

5x² - 2x + 6

The other factors are:

2x - 3 = 3x - 2

Since this factor is different on both sides, the equation is false

False

How?

Let 5x^2-2x+6 be A

The expression will be

[tex]\\ \sf\longmapsto A(2x-3)=A(3x-2)[/tex]

[tex]\\ \sf\longmapsto 2x-3=3x-2[/tex]

But it's impossible

[tex]\\ \sf\longmapsto 2x-3\neq 3x-2[/tex]

A gift shop sells souvenir magnets. The store is selling 3 magnets for $10. At this price, how much will it cost to buy 8 magnets? PLEASE HELP ITS A TEST I GIVE BRAINLIEST

Answers

So if it’s 3 for 10 you have to find the average. Divide 10 by 3 to get you 3.33 $ per magnet. But we need 8 magnets! So 8x3.33= 26.64$

At this price. The cost to buy 8 magnets will be $26.67.

What are ratio and proportion?

A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.

A gift shop sells souvenir magnets. The store is selling 3 magnets for $10. At this price. The cost to buy 8 magnets will be

Let x be the cost of 8 magnets.

We know that the ratio of the cost and the number of magnets will be constant. Then we have

x / 8 = 10 / 3

x = $26.67

At this price. The cost to buy 8 magnets will be $26.67.

More about the ratio and the proportion link is given below.

https://brainly.com/question/14335762

#SPJ6

f(x) = 4x + 7. Find the inverse of f(x).
A. f '(x) = 7 - 4.3
B. f 1(x) = 4x - 7
4
IT
c. f '(2)
x= 4
D. f '(x) =
7

Answers

Answer:

f '(x) = 4

Step-by-step explanation:

download photo math on your phone

PLEASE HELP ASAP!!!!! <333

Answers

Answer: Scientific notations

1) 4.4822 x 10^10

2) 1.05 x 10^-5

3) 9.5 x 10^-4

4) 4.2035 x 10^5

5) 2 x 10^4

Step-by-step explanation:

Answer:

1. 4.4822 x 10^10

2. 1.05 x 10^-5

3. 9.5 • 10^-4

4. 4.2035 x 10^8

5. 2 x 10^4

6. 0.092 x 10^6

7. 0.5014 x 10^-3

8. 400 x 10^-14

9. 0.77 x 10^8

10. 0.0215 x 10^1

Мне нужна помощь с 79% из 67 миль - это что?

Answers

Answer:

52.93 miles

Step-by-step explanation:

79% of 67 miles =

0.79 * 67 = 52.93

52.93 miles

-Chetan K

What is the domain and range of the function?
Domain:

Answers

Answer:

Domain: {x∈R}

Range: {f(x)∈R | f(x) ≥ 0}

Step-by-step explanation:

The domain of a function is, in simple terms, all the possible x values of a function (input values), and as the graph shows that all x values are possible (x, 0 and -x) meaning x can be any rational number, represented by the R and the subset symbol (∈).

The range is all the possible f(x) values (outputs/y values) and if you look at the graph you see that it isn't possible for the f(x)/output/y values to be negative so we write:

{f{x}∈R (f(x)/output/y value is rational) | (and) f(x) ≥ 0 (f(x)/output/y value is bigger or equal to 0, not negative)}

Hope I helped :)

A street sign that is 8 feet tall casts a shadow that is 5 feet long. At the same time, a nearby tree casts a shadow that is 28 feet long. What is the height of the tree?​

Answers

Answer:

44.8 feet

Step-by-step explanation:

PLEASE HELPPP!!!!!! NO LINKS

Answers

Answer:

1/2 of an answer is zero answer.i dont know

Step-by-step explanation:

Can someone pls help me

Answers

>> Answer

__________

[tex] \: [/tex]

b² = c² - a²

b² = 10² - (√19)²

b² = 100 - 19

b² = 81

b = √81

b = 9

what fraction of a clockwise revolution does the hour of a clock turn through when it goes from a) 4 to 7 b) 8 to 2 c) 1 to 10 ​

Answers

Answer:

a) 3/12 = 1/4

b) 6/12 = 1/2

c) 9/12 = 3/4

Step-by-step explanation:

To find the distance traveled by the hour hand, subtract the beginning position from the ending position. For example, in a, the distance traveled between 4:00 and 7:00 is three hours. Since there are 12 total hours on a clock, the fraction would be 3/12 (traveled/whole revolution). Simplify further to get 1/4.

The other two problems are very similar to the explanation above. Treat the second problem's ending time as 14:00, since it is two hours after 12:00.

Hope this helps!

negative five divided by five sevenths

Answers

Answer:

-7

Step-by-step explanation:

-5 ÷ 5/7

⇒ -5 × 7/5

⇒ -7

hope this helps !

pls mark as brainliest :))

[tex]\\ \sf\longmapsto -5\div \dfrac{5}{7}[/tex]

[tex]\\ \sf\longmapsto -5\times \dfrac{7}{5}[/tex]

[tex]\\ \sf\longmapsto -1(7)[/tex]

[tex]\\ \sf\longmapsto -7[/tex]

In a bag of marbles there are 3 red, 4 green, and 3 blue marbles. Which probabilities represent Nora's chances of NOT picking a green marble? (pick three boxes) *
Answer choice :: (numbers)
²/₅
6%
40%
60%
³/₁₀
.3
3%
³/₅
30%
4%
.6
.4

Answers

Answer:

3/5

Step-by-step explanation:

Red + blue marbles/ Total marbles

POSS
Given a cone with height of 10 cm and a base radius of 9 cm, what is the volume of the cone? Use 3.14 for 7. Round your answer to th
O 8.4 cm2
O 8.4 cm
O 8.47 cm?
O 847.8 cm3
1
2
3
4
5
6
7

Answers

Answer:

847.8cm3

Step-by-step explanation:

formula for volume of cone is 1/3πr^2h

through: (-1, 4) and (-4, 2)

Answers

Midpoint= (-2.5, 3)

[tex] distance \: = \sqrt{13} [/tex]

Equation:

[tex]y = \frac{2x}{3} + \frac{14}{3} [/tex]

Answer:

[tex]First \: you \: find \: the \: gradient \: of \: the \\ \: line \: using \: the \: formula[/tex]

[tex] \frac{ {y}{2} - y1}{x2 - x1} [/tex]

[tex] \frac{ 4 - 2}{ - 1 - - 4} = \frac{2}{3} = 0.66666666666[/tex]

[tex]Next, use \: the \: equation \: of \: a \: line \: \\ which \: is[/tex]

[tex](y - y1) = m(x - x1)where \: m \: is \: the \: gradient.[/tex]

[tex](y - 4) = 0.66666666666(x - - 1)[/tex]

[tex] = y - 4 = x + 0.66666666666[/tex]

[tex]Therefore,[/tex]

[tex]y = x + 4.66666667[/tex]

Step-by-step explanation:

[tex]Sry \: if \: it \: is \: wrong...[/tex]

[tex]\huge\red{T}\pink{H}\orange{A}{N}\blue{K}\gray{S}........[/tex]

what's the formula for calculating the surface are of a cylinder​

Answers

Answer:

The general formula for the total surface area of a cylinder is T. S. A. =2πrh+2πr2 .

Answer:

the surface area of a cylinder:

TSA=2[tex]\pi \\[/tex]r(r+h)

Step-by-step explanation:

Find the slope of each graph by comparing the ratio of the rise over the run. (only do #3)

Answers

Answer: undefined

Step-by-step explanation:

Question 3 is undefined.

rise/0 is undefined.

For detailed, step-by-step explanations you can visit my fiverr account: kesja_

I provide detailed explanations for math questions for as little as $1!

can you help me with number 11 its fine the slope of of the line that passes through each pair of points​

Answers

Answer:

is the question complete!

If f(x) = √ x + 3, then f' (1) =

Answers

Answer:

4

Step-by-step explanation:

Do you see f(x) (f of x)? if the (x) part is a number, plug that number in as x on the other side of the equal sign. If I plug 1 in, I get 4, because the square root of 1 is 1, and 1+3=4.

Ight Ight please answer please please!!

Answers

Answer:

y=x^2+1 is the answer i believe!

Step-by-step explanation:

this is because it is a parabola (quadratic) = not a line!

hope this helps!

next term in each sequence 1,4,20,120,...​

Answers

1 x 4 = 4
4 x 5 = 20
20 x 6 = 120
120 x 7 = 840

So the answer is 840

Answe840is the answers for the question

Step-by-step explanation:

please mark me as brainlest

Work out the value of

n

1

4

÷



2

=

2

n

Give your answer as an improper fraction.

Answers

Answer:

0

Step-by-step explanation:

Multiply to remove the fraction, then set equal to  0  and solve.

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