factor the expression 9r2-4

Answers

Answer 1

Answer: Hieee! So the answer to this problem is (3r-2)(3r+2) I think...

Step-by-step explanation:

Answer 2

Answer:

9(r - 5)(r - 1)

Step-by-step explanation:


Related Questions

Use substitution to solve the system of equations.
3 - 5y = 36
22 + y = -16

Answers

Answer:

(-4, -8)

Step-by-step explanation:

x - 5y = 36; 2x + y = -16

first, rearrange the first equation by adding 5y to both sides to isolate x

x = 5y + 36

then plug that in for x in the second equation and solve for y:

2(5y +36) + y = -16               distribute 2 to (5y + 36)

10y + 72 + y = -16                 combine like terms by adding 10y and y

11y + 72 = -16                        subtract 72 from both sides

11y = -88                                divide both sides by 11

y = -8

next, plug y in and solve for x

x - 5(-8) = 36

x + 40 = 36                          subtract 40 from both sides

x = -4

finally, check the solution by plugging x and y into both equations to see if they equal the expected value

(-4) - 5(-8) = -1 + 40 = 36 = 36 ✓

2(-4) + (-8) = -8 -8 = -16 = -16 ✓

2,416 divided by 6 need the answer

Answers

Answer:

402.66666666667

Step-by-step explanation:

Find UV.
v
2
T
270
U
Write your answer as an integer or as a decimal rounded to the nearest tenth.

Answers

Answer:

UV = 3.9

Step-by-step explanation:

Here, we want to find the value of UV

From the question, we can see a right-triangle

2 faces the angle given and is thus the opposite side

UV represents the adjacent side

mathematically, the trigonometric ratio that relates the opposite to the adjacent is the tangent

It is the ratio of the opposite to the adjacent

Tan 27 = 2/UV

UV = 2/tan 27

UV = 3.9

What is equivalent to 7x(4x-5)

Answers

7x(4x-5)

Distribute

28x^2-35x

Ans : 28x^2-35x

Answer:

28x - 5

Step-by-step explanation:

coeffecients with the same variable can be multiplied added subtracted divided so i multiplied 7 and 4 because they have the same variable which is X so it would be 28x and you can't multiply 7x by 5 because it doesnt have a variable consider multiplying if it has the same variable when it has a variable. so it would just be 28x - 5

Joris pays 8% sales tax on a backpack that costs 68 dollars. How much does the sales tax add to the purchase price?helpppppp

Answers

Answer:

$5.44

Step-by-step explanation:

The sales tax adds $5.44. The total would be $73.44

To get this answer, you just multiply 68 x 0.08, which equals $5.44

hey! please help on this question i'll give brainliest <333 .

Answers

2 1/2 aaa 20 characters

Answer:

9 1/6

Step-by-step explanation:

=(35×3)+(10×6)6×3

=165/18

Simplifying 165/18, the answer is

=9 1/6

The side lengths of the state flag of Colorado are in the ratio 2:3. If a flag is 12 feet long, what is its height?​

Answers

Answer:

5 inches

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

you first divide 12 by 3 then multiply it by 2 to get 8

1 x=5
2x + y = 10

Substitution

Answers

Answer:

Y = 0

Step-by-step explanation:

If x = 5 then 2x + y = 10 is 10 + y = 10 (2*5 = 10) and so 10 + 0 = 10. Y = 0

Donna is saving money to buy a game. The game costs $30, and so far she has saved three-fifths of this cost. How much money has Donna saved?

Answers

Answer:

30*3/5=90/5=$18

Step-by-step explanation:

Please help me !!!!!!!

Answers

Answer:

C. Both (1,11) and (-1,-5)

Step-by-step explanation:

Ok so,

let's try to plug in the first ordered pair into the equation. It should look like this:

11 = 8+3

11=11      CORRECT

now let's try to plug in the second ordered pair. it should look like this:

-5 = -8+3

-5 = -5      CORRECT

hope this helps. have a good day!!

please i need help again

Answers

Answer:

8^2*(2+6)/4= 64*8/4 = 512/4 =128

Answer:

128

Step-by-step explanation:

First add 2+6 because it's in parenthesis

Second, square 8 and get 64

third, multiply 64 times 8

last divide 64 times 8 (which is 512) by 4

USE PEMDAS OR GEMS TO DECIDE THE ORDER

GEMS:

G- groups (parenthesis)

E- exponents

M- multiplication and division (go in order of what comes first in equation)

S- subtraction and addition  (go in order of what comes first in equation)

my number is the largest 2 digit number that is a multipull of both 4 and 3

Answers

Answer:

96.

Step-by-step explanation:

4*4*3 = 48

2 * 48

= 96

Calculate the rate of interest if principle is 6000 time is two years and interest 3000

Answers

Answer:

We conclude that the interest rate required to  accumulate simple interest of $3,000 from a principal of $ 6,000.00  over 2 years is 25% per year.

Step-by-step explanation:

Given

Principle P = 6000

Time period t = 2 years

Interest I = 3000

To determine

Interest rate r = ?

Using the formula

I = Prt

r = I / Pt

substituting P = 6000 , t = 2, and  I = 3000

r = 3000 / ( 6000 × 2 )

r =  3000 / 12000

r = 0.25

convering the decimal into percentage: 0.25×100 = 25%

r = 25%

Therefore, we conclude that the interest rate required to  accumulate simple interest of $3,000 from a principal of $ 6,000.00  over 2 years is 25% per year.

Suppose that you have $5,000 to invest. Which investment yields the greater return over a 10 year period: 7.74% compounded daily or 7.8% compounded quarterly? Find the total amount of the investment after 10 years if $5,000 is invested at 7.74% compounded daily. $ (Round to the nearest cent as needed.)​

Answers

Answer:

We should invest in 7.74% compounded daily as it yields a higher return.

The total investment after 10 years is $10,841.22.

Step-by-step explanation:

a.) at 7.74% compounded daily

[tex]final = principal(1 + \frac{i}{m} )^{m \times n} \\ = 5000(1 + \frac{0.0774}{365} )^{365 \times 10} \\ = 10 \: 841.2235[/tex]

I assumed there are 365 days in a year.

b.) at 7.8% compounded quarterly

[tex]final = principal(1 + \frac{i}{m}) ^{m \times n} \\ = 5000 (1 + \frac{.078}{4} )^{4 \times 10} \\ = 10 \: 762.2505[/tex]

Complete the statement with , or =.

5/5 ___ 1

Answers

Answer:

=

Step-by-step explanation:

Answer:

5/5=1

Step-by-step explanation:

p−3=−4

Helppppp

Meeee

Plzzz

Answers

sorry i had the wrong answer...

What are the coordinates for Point S?

Answers

The coordinates of point S are (2,-2)

Answer:

(2, -2)

Step-by-step explanation:

its positive 2 on the x axis and negative 2 on the y axis


Liam has 8/9 pound of clay. He will use 1/3 pound to make each action figure. How many action figures can he make?​

Answers

Answer:

Step-by-step explanation:

8/9

1/3= 3/9

8/9 / 3/9

8x 9

9   3

8x9=72

9x3=27

72/27=2.666666

Liam can make 2 action figures

Ruby stands at 5 feet tall her shadow is 6 feet long how far is it form the top of her head to the end of the shadow

Answers

Answer: 7.81 feet

Step-by-step explanation:

This scenario forms a right-angled triangle where Ruby's height of 5 feet is the height of the triangle. Her 6 feet long shadow is the length of the triangle and the distance from the top of her head to the end of the shadow is the hypotenuse.

This can therefore be solved by the Pythagorean formula:

c² = a² + b²

where ;

c = hypotenuse

a = height

b = length

c² = 5² + 6²

c² = 25 + 36

c² = 61

c = √61

c = 7.81 feet

Michael has $1,017.59 in his checking account. He is going to spend $540.68 on a new television, and he will spend the rest on
speakers that cost $41.00 each. Which of the following inequalities would determine the maximum number of speakers, x, Michael
can buy without spending more money than he has in his account?
A. $1,017.59 < $41.00x + $1,017.59
B. $1,017.59 + $540.68 > $41.00 +X
C. $41.00x + $540.68 < $1,017.59
D. $540.68 + $41.00 + x < $1,017.59

Answers

Answer: B

Step-by-step explanation:

Find the L.C.M of 150,180and 240 leaving your answer as product of prime factors​

Answers

Answer:

2^4·3²·5²  = 3600

Step-by-step explanation:

need help solving this problem down below.​

Answers

Answer:

1 / We have the area of a rectangle ABCD = 8 x 16 = 128 ft²

2 / Find the area of an isosceles Δ DEF:

The base of the isosceles ΔDEF => DF = DC- FC = 16 -12 = 4 ft

So the area of Δ DEF = 1/2 (DF x EH) = 1/2 (4 x 6) = 12 ft²

3 / Area of the irregular shape = area ABCB + Area DEF = 128 + 12 = 140 ft²

Step-by-step explanation:

Find the logarithms of the following numbers to the base 1/3: 1

Answers

Answer:

6.644

Step-by-step explanation:

1 = (⅓)⁰
log(base ⅓) of 1 = log(base ⅓) of (⅓)⁰ = 0

Pls help i need this quickly ill give brainliest
factor the following completely: x^3*y^2-x^2*y^3

Answers

Answer:

Step-by-step explanation:

x³y² = x * x * x * y * y

x²y³ = x * x     * y  *y * y

GCF = x * x * y * y = x²y²

x³y² - x²y³ = x²y² ( x - y)

Multiply 13.5 x 12.1 using a regrouping strategy. Explain your answer and each step that you take.

Answers

Answer:

163.485

Step-by-step explanation:

multiply 13.5 x 12.11

Find the side of cube whose total surface area is 486 sq.cm

Answers

Answer:

9 cm

Step-by-step explanation:

The cube has 6 square faces.

Divide surface area by 6 to find area of 1 face

area = 486 ÷ 6 = 81 cm²

The area of a square = s² ( s is the side length ) , then

s² = 81 ( take the square root of both sides )

s = [tex]\sqrt{81}[/tex] = 9 cm

Can someone please help me with this

Answers

Answer:

D

Step-by-step explanation:

A has the rate of change of 3

B has the rate of change of 5

C has the rate of change of 9

D has the rate of change of 20

A has a rate of change of 3
B has a rate of change of 5
C has a rate of change of 9
D has a rate of change of 20

Therefore D has the highest rate of change. Hope this helps! :)

Loretta grew 54 watermelons in her garden last year. This year, that number increased by 5/9. Which expression shows the number of watermelons loretta grew this year?

Answers

Answer:

[tex]54+\frac{5}{9}\times 54[/tex]

Step-by-step explanation:

We are given that

Loretta grew  watermelons in her garden last year=54

We have to find the expression which shows the number of watermelons Loretta grew this year.

To find the expression which shows the  number of watermelons Loretta grew this year by adding watermelons grew in her garden last year and number of watermelons increased .

According to question

5/9 of 54=[tex]\frac{5}{9}\times 54[/tex]

Therefore, the expression which shows the  number of watermelons Loretta grew this year

=[tex]54+\frac{5}{9}\times 54[/tex]

Jenny spends 3 hours each week practicing soccer and 5 hours each week practicing piano. Write the ratio of hours spent practicing soccer to hours spent practicing piano.

Answers

3 hours of soccer to 5 hours of piano

It would be written as 3:5

Answer:

3:5 or 3/5

Step-by-step explanation:

y=xe^x how do you find the domain of the following function ​

Answers

9514 1404 393

Answer:

  all real numbers

Step-by-step explanation:

Basically, you look for any values of x for which the function is not defined. There are none. So, the domain is "all real numbers."

__

The function is the product of a polynomial (x) and an exponential function (e^x). Each of those kinds of functions has a domain of "all real numbers". Multiplication is also defined for all real numbers, so there is nothing about this product that would restrict the domain.

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