pls help me for 18 points

Answer:

a) [tex]x(x+3)[/tex]

b) [tex]2x(x-8)[/tex]

c) [tex]3x(2+3x^{2})[/tex]

d) [tex]4x^{2} (3x-1)[/tex]

Step-by-step explanation:

a) [tex]x^{2} +3x=x(x+3)[/tex]

b) [tex]2x^{2} -8x=2x(x-8)[/tex]

c) [tex]6x+9x^{3} =3x(2+3x^{2})[/tex]

d) [tex]12x^{3} -4x^{2} =4x^{2} (3x-1)[/tex]

Factors of the following algebraic expression are

a. Factors of x² + 3x   are x and x+3

b. Factors of 2x² -8x  are 2, x and ( x-4)

c. Factors of 6x +9x³ are 3, x  and (2 + 3x²)

d. Factors of 12x³ - 4x² are 4, x, x and (3x -41)

The factor of an given algebraic expressions are one or more numbers or linear or other expressions that multiply to form the given algebraic expression and cannot be broken down further into simpler expressions.

For finding factors of an algebraic expression we can simply take out common expressions from all the terms of the expression and try to simplify it.

a. x² + 3x = x( x+3), (taking x common from both terms)

b. 2x² -8x = 2x ( x-4) (taking 2x common from both terms)

c.  6x +9x³ = 3x (2 + 3x²)   ( taking 3x common from both terms)

d.12x³ - 4x² = 4x× x × (3x -41) ( taking 4x²  common from both terms)

Also, Learn more about the factors of the algebraic expression from the link below:

brainly.com/question/1245504

#SPJ1

Answer: 90 visitors per hour

Explanation: "Per hour" means in 1 hour, so we can rewrite the given statement using fractions as 450 visitors/5 hours = __visitors/1 hour.

To find out what goes in the bank, notice that we

have a 1 in the denominator of our second fraction.

So we want to find a fraction that is equivalent

to 450/5 that has a 1 in the denominator.

If we divide the numerator and denominator of 450/5 by 5,

we get the equivalent fraction 90/1 or 90 visitors/1 hour.

So now we have 90 visitors/1 hour = __visitors/1 hour.

So a 90 must go in the blank.

This means that the museum sees 90 visitors per hour.

Answer:

option D; 20/3 OR 6 2/3

Step-by-step explanation:

CONVERT THE HOURS INTO MINUTES;

3/4 × 60 = 45 mins

1hour = 60 mins

45 mins = 5 miles

60 mins = ??

cross multiply;

60 by 5 ÷ 45 to get 20/3.

Answer:

1. yes

2. no

3. yes

Step-by-step explanation:

A monomial is one term.

1. Yes. 7b is one term.

2. No. 5x-11 is not one term. It is 2 terms.

3. Yes. 2020 is one term.

Answer:

1. c = 9/2

2. r = 21/4

3. x = -2/3

4. m = 5/2

Step-by-step explanation:

1.

1 - 2c = -8

Subtract 1 from both sides to isolate the variable:

-2c = -8 - 1 = -9

Divide by -2 to further isolate the variable:

c = (-9) / (-2) = 9/2

So, the answer is c = 9/2.

2.

-8/7r = 6

To isolate the variable, divide both sides by -8/7:

r = (-6) / (-8/7)

Remember that when dividing fractions, it's the same as multiplying by the reciprocal of the divisor, so:

r = (-6) / (-8/7)

r = (-6) * (-7/8) = 42/8 = 21/4

So, the answer is r = 21/4.

3.

4 - 4 * (4 - x) - 4x = 18x

We need to use order of operations and expand the 4 * (4 - x) part first:

4 * (4 - x) = 16 - 4x

Put this back in:

4 - (16 - 4x) - 4x = 18x

4 - 16 + 4x - 4x = 18x

Combine like terms:

-12 = 18x

Divide by 18 on both sides:

x = -12/18 = -2/3

So, the answer is x = -2/3.

4.

1/5m + 3 = 7/5m

Subtract 1/5m from both sides:

3 = 7/5m - 1/5m = 6/5m

Divide both sides by 6/5:

m = 3 ÷ (6/5) = 3 * (5/6) = 15/6 = 5/2

So, the answer is m = 5/2.

Answer:

1. c = 9/2

2. r = -21/4

3. x = -2/3

4. m = 5/2

Step-by-step explanation:

1-2c = -8

1 + 8 = 2c

9 = 2c

c = 9/2

-8/7r = 6

r = 6 × 7/-8

r = 3 × 7/-4

r = -21/4

4-4 (4-x) -4x = 18x

4 - 16 + 4x - 4x = 18x

-12 = 18x

x = -12/18

x = -2/3

1/5m + 3 = 7/5m

3 = (7/5 - 1/5)m

3 = 6/5m

m = 3 × 5/6

m = 5/2

Answer:

It is more likely that Danny will make three free throw shots in a row.

Step-by-step explanation:

The probabilities of Craig and Danny making the throw they attempt, is given as:

Probability that Craig will make the throw = 55% = 0.55

Probability that Danny will make the throw = 71% = 0.71

Now, the probabilities that they will miss the throw can be found out by subtracting the probabilities, that they can make the throw, from 1.

Probability that Craig will miss the throw = 1 - 0.55 = 0.45

Probability that Danny will miss the throw = 1 - 0.71 = 029

Now,

Probability that Craig will miss two throws in a row = (0.45)(0.45)  Probability that Craig will miss two throws in a row = 0.2025

And,

Probability that Danny will make three throws in a row = (0.71)(0.71)(0.71)

Probability that Danny will make three throws in a row = 0.3579

Since, the probability of Danny making three throws in a row is higher than the probability of Craig missing two throws in a row.

Thus, it is clear that, it is more likely that Danny will make three free throw shots in a row.

Answer:

C

Step-by-step explanation:

2 x pi x r = circumfrence

2 x 7 x pi = 43.96

Answer: 43.96 m

Step-by-step explanation: To find the circumference of the circle shown here, start with the formula for the circumference of a circle which is shown below.

Circumference = 2πr

Notice that the radius of the circle is 7 meters.

So we can plug in 7 meters for r in the formula.

So we have (2)(π)(7m) which is equal to 14π m.

So the circumference of the circle shown here is 14π m.

Remember that π is approximately equal to 22/7 or 3.14 so we can estimate the value of the circumference by plugging in 3.14 for π.

So we have (14)(3.14) which is equal to 43.96.

So the circumference of the circle is

approximately equal to 43.96 m.

Answer: 9

Step-by-step explanation:

Answer:

tan53=x/14

Step-by-step explanation:

solve after that with inverse tan and simple algebra

Answer:

90km/h

Step-by-step explanation:

speed =distance / time

distace = 6

time = because we have hours we have to convert the minute into an hour so

4/60 so that woul be: 0.06666666666

and 0.06666666666 times 6 is 90

i hope that helps

Answer:

n=2m

Step-by-step explanation:

If she watches 2 movies a month (2m), plug in any number and it will give you how many movies (n) she will watch in however many months.

Answer:

2n

I hope I helped you! If I am correct, please makr me brainiest. Thanks!

Answer: The value of x is  -2.

Step-by-step explanation:

y= 1/2x + 2

y= -3/2x-2

1/2x + 2  = -3/2x -2

         +2               +2

1/2x  + 4 = -3/2x

-1/2x            -1/2x

          4= -2x

   x= -2      

Answer:look at picture

Step-by-step explanation:

Answer:

the sum of the angles pythagorean theorem is a^2+b^2=c^2

Also, the angles of a triangle will add up to 180 degrees

this practice is most commonly found in right triangles

Step-by-step explanation:

Answer:

n = -20

Step-by-step explanation:

[tex]-1 +\frac{n}{2} = -11\\[/tex] add 1 on each side

[tex]\frac{n}{2} = -11 + 1\\\\\frac{n}{2} =-10[/tex]multiply by 2

n = -20

Answer:

1/3 x 12=4

Step-by-step explanation:

The correct answer for 1/3*12 is 4.

1: Times 1/3 by 12

Answer: 4

Hope this helps.

Answer:

x = 24

Step-by-step explanation:

T = 24.93 + 0.21x      Substitute 30.18 for T

30.18 = 24.94 + 0.21x

-24.94  - 24.94              Subtract 24.94 from both sides

5.24 = 0.21x                   Divide both sides by 0.21

x = 24.95 ≈ 24 because you can't have a partial text message.

If this answer is correct, please make me Brainliest!

Answer:

volume

Step-by-step explanation:

The question is not properly written

Correct Question

A standard deck of 52 cards contains 4 suits: hearts, clubs, diamonds, and spades. Each suit consists of cards numbered 2 through 10, a jack, a queen, a king, and an ace.

Anthony decides to pick one card at random from a standard deck of 52 cards. Let A be the events that he chooses an ace and H be the event that he chooses a heart.

What is P ( A or H), the probability that the card Anthony chooses is either an ace or a heart?​

Answer:

2/13

Step-by-step explanation:

From the question, we have in total, 52 cards.

Step 1

We find the probability that Anthony chooses an Ace.

Number of ace cards in each of four suits namely spades, hearts, diamonds and clubs = 1

Therefore, total number of ace cards out of 52 cards = 4

P(A) = 4/52

Step 2

We find the probability that Anthony chooses an Ace.

Probability that Anthony chooses an heart P(H) = 4/52

Step 3

The probability that the card Anthony chooses is either an ace or a heart

P ( A or H) = P(A) + P(H)

= 4/52 + 4/52

= 8/ 52 = 2 /13

Answer:

24th floor

Step-by-step explanation:

To get the number of the floor you were originally on, you add the number of floors you went down to the current floor you are on so 16 + 8 = 24

Answer:

24

Step-by-step explanation:

x-8=16

16+8=24

Answer:

3.75

Step-by-step explanation:

The hundredth is the 2 number after the decimal point so round that up.

Answer:

3.75

Step-by-step explanation:

the hundreths place is the second number to the left of the decimle, because the number to the left of the hundreths place is less than five. You leave the hundreths place number as it is. This leaves you with your awnser: 3.75

Answer:

$5150

Step-by-step explanation:

p = 5000

r = 0.03

t = 1

5000 * (1.03) = 5150

Answer:

ax+b

Step-by-step explanation:

Answer: Substitute the given value for the (variable)

Use the (order of operations) to simplify

First class complete (multiplication) inside the parentheses

Next, complete the (subtract) inside the parentheses

The value is (8)

Step-by-step explanation:

Answer:

x = 9

y = 6

Step-by-step explanation:

3x+6i=27+yi

The real components have to be equal and the imaginary components have to be equal

3x = 27

divide by 3

3x/3 = 27/3

x=9

6i = yi

Divide by i

6 = y

Answer:

x=9, y=6

Step-by-step explanation:

Step-by-step explanation:

we have

3x+6i=27+yi

Equate the Real Numbers

3x=27

solve for x

Divide by 3 both sides

x=27/3=9

Equate the  Imaginary Numbers

6i=yi

Simplify

6=y

Rewrite

y=6

therefore

x=9, y=6

You can use a graphing calculator to have a function y = x^(1/3) and see what the y values are for the particular x values shown. Alternatively you can compute each input to get (-8)^(1/3) = -2, and (-1)^(1/3) = -1 and so on. The exponent of 1/3 is another way of writing cube root.

The cube root is the opposite of cubing something. If we go from 2 to 2^3 = 8, then reversing this has us go from 8 to 2. Think of a block of clay that is 2 by 2 by 2. The volume of this block is 8 cubic units. If you want to find the side length, then you would apply the cube root (or do guess and check).

Answer:

64

Step-by-step explanation:

put branileist

Answer:

Step-by-step explanation:

72 cuz u multiply 6x3x4=72

Answer:

b = -5  

Step-by-step explanation:

[tex]\begin{array}{rcll}(y^{-9})^{b} & = & y^{45}& \\y^{-9b} & = & y^{45} & \text{Multiplied exponents}\\-9b \ln y & =& 45 \ln y & \text{Took the ln of each side}\\-9b & = & 45 & \text{Divided each side by ln y}\\b & = & \mathbf{-5} & \text{Divided each side by -9}\\\end{array}[/tex]

Answer:

512

Step-by-step explanation:

Answer: F(x, y) = 40x + 25y

Step-by-step explanation:

Given the following :

x = number of leather wallets

y = number of canvas wallets

PROFIT on canvas wallet = $25

PROFIT on leather wallet = $40

Function that calculates the total profit on both wallets:

Profit on each wallet type is the product of the profit per wallet and the number of wallet.

The total profit generated on each wallet type is given by :

F(x) = 40x - - - - (1) leather wallet

F(y) = 25y - - - - (2) canvas wallet

Adding (1) and (2) to get total profit on both wallets:

F(x, y) = 40x + 25y

Answer:

11 years on Edg

Step-by-step explanation:

Answer:

11 years

Step-by-step explanation:

Answer:

[tex]2( \frac{1}{2} \times 15 \times 28 ) + ( 25 \times 30 ) + ( 17 \times 30) + ( 28 \times 30 ) \\ = 2520 {cm}^{2}[/tex]