Factoring

solve this and show the steps please, i know the answer but not the steps

25x^2-81

Answer:

can you he lp me

Step-by-step explanation:

Answer:

1. 0.019

2. 4-28

3. 4

4. 6:00

5. 6

6. 16

7. 7

8. >

9. <

10. >

Answer:

Im pretty sure its 50

Step-by-step explanation:

A line is 180° so you add

65 + 65 = 130

Then subtract 180

180 - 130 = 50

Hope that helps

Answer:

50

Step-by-step explanation:

The total degrees is 180 so

use the equation 65+65+x=180

simplify

130+x=180

minus 130 on both sides

x=50

Answer:

Lesser x is -13.

Greater x is 1.

Step-by-step explanation:

We have the function:

[tex]f(x)=(x+6)^2-49[/tex]

And we want to find the zeros of the function.

So, set f(x) to 0 and solve for x:

[tex](x+6)^2-49=0[/tex]

Add 49 to both sides:

[tex](x+6)^2=49[/tex]

Take the square root of both sides. Since we're taking an even root, we will need plus/minus:

[tex]x+6=\pm 7[/tex]

Subtract 6 from both sides:

[tex]x=\pm7-6[/tex]

Evaluate for each case:

Case 1; 7 is positive:

[tex]x=7-6=1[/tex]

Case 2; 7 is negative:

[tex]x=-7-6=-13[/tex]

So, our zeros are:

[tex]\{x|-13, 1\}[/tex]

Our lesser x is -13, and our greater x is 1.

And we're done!

Answer:

The answer is 6

Step-by-step explanation:

To solve this expression you use PEMDAS

16÷4=4

4×3=12

12-6=6

Answer:

(16/4)3 - 6 = ?

=> (16 * 3/ 4 * 3) - 6 = ?

=> (48 / 12) - 6 = ?

=> 4 - 6 = ?

=> -2 = ?

Therefore, (16/4)3 - 6 = -2

If my answer helped, kindly mark me as the brainliest!!

Thank You!!

Answer:

5.8 × 10-3

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the

10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

Answer: 5.7 slices

Step-by-step explanation:

7x=40. x represents number of slices per day, 7 is because you eat pizza every day and there's 7 days in a week.

Divide both sides by 7:

7x/7 = 40/7

x= 5.7

Answer:

6 to 8 percent

Step-by-step explanation:

Answer:

170 tickets were sold in advance

Step-by-step explanation:

Let x represent the = number of tickets sold at the door.

Let y represent the = number of tickets sold in advance

Tickets to a school play cost $2 if bought in advance and $3 at the door. By selling all 400 tickets, $1,030 was

collected.

Hence, we have two equations

x + y = 400 tickets

$3 × x + $2 × y = $1,030

x + y = 400.... Equation 1

x = 400 - y

3x + 2y = 1030........ Equation 2

Substitute 400 - y for x in Equation 2

3(400 - y) + 2y = 1030

1200 - 3y + 2y = 1030

Collect like terms

-y = 1030 -1200

-y = -170

y = 170

Since y represent the number of tickets sold in advance, therefore, 170 tickets were sold in advance.

Answer:

see below

Step-by-step explanation:

f(x)= -0.08x(x^2-11x+18)

Factor

f(x)= -0.08x(x-9)(x-2)

Using the zero product property to find the zeros

0= -0.08x(x-2)(x-9)

-0.8x =0    x-2 =0  x-9 =0

x=0            x=2           x=9

Multiply out

f(x) =  -0.08 x^3 + 0.88 x^2 - 1.44 x

The highest power is x^3

f(-∞) = -0.08( -∞)^3 = - ( -∞) = ∞

As x goes to -∞  f(x) goes to +∞

f(∞) = -0.08( ∞)^3 = - ( ∞) = -∞

As x goes to ∞  f(x) goes to -∞

Answer:

Option C or the third graph is the correct choice

Edg 2020

Answer:

15 hours

Step-by-step explanation:

By dividing $179.30 by the 11 hours she worked, we know that she makes $16.30 per hour. By using that same wage, we can take her goal earnings of $244.50 and divide it by her wage.

$244.50/$16.30 = 15 hours.

Hope this helps!

Answer:

15 hours

Step-by-step explanation:

By dividing $179.30 by the 11 hours she worked, we know that she makes $16.30 per hour. By using that same wage, we can take her goal earnings of $244.50 and divide it by her wage.

$244.50/$16.30 = 15 hours.

Hope this helps!

Answer:

Because of the y intercept, you would first plot a point at (0,2). This means that you would put the point when x does not from the origin (middle of the lines) and 2 points up from it. After, for every 2 points going to the right, you go only 1 up on y. This is because the slope is 1/2. I recommend you watch Khan Academy.

Step-by-step explanation:

Answer:

8x-5

Step-by-step explanation:

8$ per hour and he works 6 hours gives you 48$. Since he buys lunch, take away 5 from 48 and youll get 43$. Filo will take 43$ home.

Answer: 17000

Step-by-step explanation: Multiply the mass value by 1000

Step-by-step explanation:

that's a part to part ratio

Answer:

he will pay 55.16

Answer:

D. y = 76x

Step-by-step explanation:

First you find the gradient, by using the gradient formula

rise over run

380 - 228

---------------- <- division sign

   5 - 3

152/2 = 76

Hence y = 76x + c

Find c by subbing points in. I am going to use this as an example (5, 380)

380 = 76(5) + c

380 -380 = c

c = 0

Hence,  y = 76x

Answer:

Step-by-step explanation:

given that the function to predict the price is

y = 5.92x + 119.21

x= the number of year,

given that we are predicting from 1995-2015

the difference is 20years

So put x=20 in the expression we have

y = 5.92(20) + 119.21

y=118.4+119.21

y=237.61

the median price is $237.61

Answer:

65%

Step-by-step explanation:

26/40 x 100= 65%

hope this helps!

Answer:

use calculator soup. com

Step-by-step explanation:

this will help u

Answer:

the answer is 7 hope this helps

Answer:7

Step-by-step explanation:

Answer:

1)A.{2,3,5,7,11,13}

2) A.{t| t>4}

Step-by-step explanation:

Choose the correct solution in roster form.

1. S is the set of prime numbers that are less than 15

The Definition of a prime number is given as follows:

A prime number can be defined as the number number that can only be divisible of divided by 1 and itself

Hence the list of prime number below 15 is given as:

2, 3, 5, 7, 11 and 13

Hence, option A.{2,3,5,7,11,13} is correct

2. Write the solution to the inequality in set-builder notation.

9t-4>32

Solving for the given inequality

9t > 32 + 4

9t > 36

t >36/9

t > 4

Therefore, the solution to the inequality in set-builder notation is:

Option A.{t| t>4}

Answer:  0.0509km 60.5m 5700cm

Greatest to least

Step-by-step explanation:

x=-1/2

Step-by-step explanation:

if you want explanation let me know?

You can set up a system of equations for this problem. Let x = number of coach tickets and y = number of first class tickets. Then:

330x + 1220y = 12730 (cost of coach tickets plus cost of first class tickets is total budget)

x + y = 17 (number of coach tickets plus number of first class tickets is total number of people)

Solve the second equation for y to get y = 17 - x, then plug that into the first equation and solve for x:

330x + 1220(17 - x) = 12730

330x + 20740 - 1220x = 12730

-890x + 20740 = 12730

-890x = -8010

x = 9

Sarah bought x = 9 coach tickets. Plug that into the second equation and solve for y:

9 + y = 17

y = 8

Sarah bought y = 8 first class tickets.