Repost, can someone help?

Answer:

{1, -5/6}

Step-by-step explanation:

(6a+5)(a-1) = 0

6a+5 = 0 (or) a-1 = 0

a = -5/6 (or) a = 1

Answer:

Rational

Step-by-step explanation:

there are very few irrational numbers, such as

[tex] \sqrt{2} [/tex]

or π

most of irrational numbers have a lot of decimal digits. And also numbers with 2 decimal digits are all rational because you can write them as

[tex] \frac{49}{100} [/tex]

The price after the discount but before tax, to the nearest dollar and cent, is $18.4.

Given Information:

Price on the tag = $23

Amount of Discount =20%

A % or Percentage is a figure or ratio that is stated as a fraction of 100 (from the Latin per centum, "by a hundred").  A % lacks dimensions and has no associated unit of measurement.

Percentage Formula =[tex]\frac{value}{Total value} *100[/tex]

Calculating the discount,

There is a 20 % discount on the camera

So, the amount of discount by using the percentage formula = [tex]\frac{20*23}{100} = 4.6[/tex]

Hence, the amount of discount is $4.6

Subtracting the discount to calculate the price after the discount =

Initial Price - Discount amount = $23-$4.6 = $18.4

Thus, the price after the discount is $18.4

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Answer:

Option D.

Step-by-step explanation:

We are given with three function.

Plug in x=-2 in first functionf(x)= 3 so f(-2) = 3Plug in x=-2 in second function.

Answer:

[tex]\frac{377}{165}[/tex]  or    2  [tex]\frac{47}{165}[/tex]

Step-by-step explanation:

Answer:

9

01000101010101010101011101010110110101011010

10101010101010110101101010101011011001010101

10101010100101010101010101101101101010101010

The lengths of the two pieces of a wire will be 19,19.

A square is a closed, two-dimensional object with four equal sides and four vertices. On either side, it has parallel sides.

The square of a square's side determines its area.

Given data -

Length of a wire = 38 m

As the wire is divided into two pieces,

Let the length of two pieces of wire be x and y m respectively.

As per given data, x + y = 38

Therefore, y = 38 - x    

As each piece is bent into a square, area of squares will be

[tex](x/4)^{2}[/tex]  and  [tex](y/4)^{2}[/tex]

Therefore, the sum of areas of two squares will be A = [tex](x/4)^{2}[/tex] +      [tex](y/4)^{2}[/tex]

A = [tex]x^{2}[/tex]/16 + [tex]y^{2}[/tex]/16

A = [tex]x^{2}[/tex]/16 + [tex](38-x)^{2}[/tex]/16

By differentiating, we will get

A' = [tex]\frac{2x}{16}[/tex] - [tex]\frac{2(38-x)}{16}[/tex]

In order to minimize the the sum of the areas of the two squares, we will take A' = 0

0 = x - (38 - x)

2x = 38

x = 19

Therefore y = 19

The length of two pieces of a wire should be 19 m each.

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Answer:

5

Explanation:

When we divide A by B, we are calculating how many Bs fit into A. So, if we want to know how many 2/5s fit into 2 yds, we need to divide 2 by 2/5. So:

So, 2 yds of rope can be divide into 5 ropes of 2/5 yd.

If the first marble is not reinserted into the bag before the second draw, there is 1/15 probability of drawing two pink marbles.

When the result of one event affects the result of another, two events are said to be dependent. The likelihood of two connected events is the sum of the probabilities of the occurrences X and Y that happen after X.

It is given that there are two yellow, three pink and 5 blue marbles.

So, in the first draw, the probability of drawing pink marble is the ratio of the number of pink marbles to the total number of marbles in the bag.

[tex]p_1=\frac{3}{10}[/tex]

Now, in the second draw, the probability of drawing pink marbles will be affected as it is not kept back. So, in the second draw, the probability of drawing pink marble is the ratio of the number of remaining pink marbles to the remaining number of marbles in the bag.

[tex]p_2=\frac{2}{9}[/tex]

Given that both occurrences occur concurrently, multiply the likelihood of the first event by the probability of the second event.

[tex]p=p_1\times p_2\\\\=\frac{3}{10}\times\frac{2}{9}\\\\ =\frac{1}{15}[/tex]

So, If the first marble is not reinserted into the bag before the second draw, there is 1/15 probability of drawing two pink marbles.

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Answer:

-6<v<3

Step-by-step explanation:

hope this helps

Answer:

only 75% of the class or students passed the algebra test

Answer: 75%

Step-by-step explanation: The equation for percentages is: part = percent • whole.

We can use our given values and plug them into the equation to solve for our percent.

In this problem, the “part” is 18, and our “whole” is 24, since the whole class has 24 people, and part of the class (18) passed.

P = % • W

18 = % • 24

(to solve for %, we have to get isolate it, or get rid of the • 24. We use division, the opposite operation, to cancel our • 24.)

18 = % • 24

÷24 ÷24

0.75 = %
Since percents are out of 100, we have to multiply 0.75 by 100.

0.75 • 100 = 75%

I hope this helped!

Answer:

15 hours

Step-by-step explanation:Easy math

Answer:

663

Step-by-step explanation:

Good luck on this

Answer:

96

Step-by-step explanation:

The area of the sector is 6.28 cm².

So, the area of the sector:

Now, substitute the values in the formula as follows:

(Let π be 3.14)

Therefore, the area of the sector is 6.28 cm².

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Answer:

1) 267.45

2) 18.48

3) 3472

Answer:

I don't understand what the question is asking, so just see if you can get something from what I wrote below.

Step-by-step explanation:

Call the first number x and the next one x+2.

(x+ (x+2))/4 = 1895

Multiply by 4 on both sides...

x+(x+2) = 7580

Simplify on the left side...

2x+2 = 7580

2x = 7578

Divide by 2...

x = 3,789

x+2 = 3791

The expression that is equivalent to \frac{9^5}{9^3} is 9^2.

It should be noted that an expression is simply used to shoe the relationship between the variables that are illustrated.

In this case the given expression is 9^5 / 9^3. It should be noted that when dividing powers, we have to subtract them. Therefore, 5 - 3 = 2.

The value will be:

= 9^5 / 9^3

9^2

The expression is 9^2.

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Answer:

a value that is not yet shown

Step-by-step explanation:

Mark me as branlist to help

The value of the quotient expression 546 ÷ 13 is 42

The expression is given as

546 divided by 13

Rewrite the expression as

546 ÷ 13

By the standard algorithm, we have

The expression can be solved using a calculator and with the use of standard algorithm i.e. partial decomposition

By the rule of partial decomposition, we have

a ÷ b = (c ÷ d) ÷ b

Where

a = c + d

Next, we expand the expression as follows:

546 ÷ 13 = (520 + 26) ÷ 13

Remove the brackets

So, we have

546 ÷ 13 = 520 ÷ 13 + 26 ÷ 13

Evaluate the quotients

So, we have

546 ÷ 13 = 40 + 2

Evaluate the sum

So, we have

546 ÷ 13 = 42

Hence, the solution of 546 ÷ 13 is 42

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Answer:

Step-by-step explanation:

2100 - 1900 =  200

660(200) + 14,400

p = 146400

146,400 people

The answer is B

a) To know the total millilites that sam use to fil the dispenser, we will have to add all the seven amount filled as shown;

Total (in milliliters) = 350 mL + 600 mL + 475 mL + 580mL + 720mL + 500 mL

Total (in milliliters) = 3225mL

Hence the total milliliters that sam use to fill the dispensers is 3225millilitres

b) The amount liters of sanitizer remaining will be 12litres - 3225mL

Convert 3225mL to litres

3225mL = 3225/1000 Litres

3225mL = 3.225litres

The amount liters of sanitizer remaining = 12 - 3.225

The amount liters of sanitizer remaining = 8.775litres

The sales price of washing machine is 250.

The price at which something sells or is offered for sale after having its price lowered is known as sales price. 

A sale price is the reduced cost at which goods or services are offered for sale. Typically, this price is provided for a brief period of time in an effort to boost sales during a slow period or get rid of extra inventory.

The promotional price is indicated as a percentage off of the standard list price.

Let x be the sales price of washing machine, then as per given

17% of x = 42.5

(17/100) * x =42.5

x = 250

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Answer: 2/5 is

Step-by-step explanation: 2/5 is equal to 40% and there is 10 bows

Step-by-step explanation:

option D is correct..

can we become friends???

Step-by-step explanation:

146 × 48 = 48 × 146

due to the commutative law of multiplication the sequence of the operands of a multiplication does not matter.

a × b = b × a

this bases on the fact that a multiplication is nothing else than a special kind of addition

a × b = add a b times; or add b a times.

and as already the addition follows the commutative law

a + b = b + a

so, does then the multiplication.

The most appropriate choice for function and domain and range of a function will be given by -

Domain of y = [tex]\mathbb{R} -[/tex] {[tex]-\frac{1}{2}[/tex]}

Range = [tex]\mathbb{R}-[/tex]{[tex]\frac{1}{2}[/tex]}

What is a function and domain and range of a function?

A function from A to B is a rule that assigns to each element of A a unique element of B. A is called the domain of the function and B is called the codomain of the function.

There are different operations on functions like addition, subtraction, multiplication, division and composition of functions.

The set of  values for which the function is defined is the domain of the function and the values obtained on substituting the values of domain in the function is the range of the function.

y = [tex]\frac{x -5}{2x + 4}\\[/tex]

For domain of y

y is not defined if 2x  +4 = 0

y is not defined if [tex]x = -\frac{1}{2}[/tex]

Domain of y = [tex]\mathbb{R} -[/tex] {[tex]-\frac{1}{2}[/tex]}

For range of y

let [tex]\frac{x -5}{2x + 4}\\[/tex] = z

[tex]x - 5 = z(2x +4)\\x - 5 = 2zx + 4z\\x - 2zx = 4z + 5\\x(1 - 2z) = 4z + 5\\x = \frac{4z + 5}{1 - 2z}[/tex]

If y = [tex]\frac{1}{2}[/tex]

[tex]\frac{x-5}{2x + 4} = \frac{1}{2}\\2x - 10 = 2x + 8\\-10 = 8\\[/tex]

Not possible

[tex]\frac{1}{2}[/tex] is not in the range of y

Range = [tex]\mathbb{R}-[/tex]{[tex]\frac{1}{2}[/tex]}

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The fractional equivalent of the repeating decimal n = 0.1515... is 5/33, with two repeating digits.

A fractional equivalent is a fraction that shares the same equivalent value with a decimal.

For instance, the equivalent fraction of 0.1515 is 303/2000.  But for a repeating decimal like 0.1515..., the equivalent fraction is 5/33.

When numbers or values are said to be equivalent, it means that they are equal.

By their nature, repeating decimals continue endlessly.

Let x = 0.1515... equation 1

100x = 15.1515... equation 2

Subtract equation 1 from equation 2:

100x = 15.1515...

    x =   0.1515...

99x = 15

x = 15/99

x = 5/33

Thus, n = 0.1515... as a repeating decimal or 5/33 as a fraction.

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