Solve x2 + 32x = –255 by completing the square.

Question 8 options:

x = –17 and x = –15


x = –17 and x = 15


x = 15


No Real Solutions

Answers

Answer 1

Answer:

-15, -17

Step-by-step explanation:

x^2 + 32x = –255 move the -255 to the left

x^2 + 32x +255=0

What two number when multiplied equal 255? Those same two numbers when added make 32. 17*15 make 255 and added is 32

(x+15)(x+17) For x+15=0 move the 15 to the other side. x= -15. Same with x+17=0 is x= -17

x= -15, -17


Related Questions

4/3 divided by 2/5...............

Answers

Answer:

[tex]3 \frac{1}{3}[/tex], or 10/3

Step-by-step explanation:

4/3 ÷ 2/5 = 4/3 × 5/2 = 20/6 = [tex]3 \frac{2}{6} = 3\frac{1}{3}[/tex]

Answer:

3 1/3

Step-by-step explanation:

When we divide two fractions, such as 4/3 ÷ 2/5, we flip the second fraction and then we simply multiply the numerators with each other and the denominator with each other.

We also simplify the answers to fraction problems whenever possible.

So first we will change 2/5 into its reciprocal, in simple words what fraction is it when its flipped over, 5/2 right? So now we change the division into multiplication, you may or may not have heard this phrase:

Keep, Change, Flip

so now our equation looks like this:

4/3 (5/2)

In a multiplication problem it dosent matter if the denominators are the same so we just straight up multiply, which gives us 20/6. We can still simplify this by 2, so 20 divided by 2 is 10, and 6 divided by 2 is 3, so our new fraction is 10/3, now we can simplify it again to make it proper, so its 10 divided by 3, the numerator goes inside and the denominator goes outside, this gives us 3r1, the denominator (the outside number) will becomes the mixed number, the remainder will become the numerator, and the answer will become the denominator, which gives us our final answer of:

3 1/3

What is the Least Common Denominator for the two fractions? 1/4 and 7/10​

Answers

Answer:

1/4

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

a rectangular room is 6 meters longer than it is wide, and it's perimeter is 32 meters. Find the dimensions of the room​

Answers

Answer:

length: 11m. width: 5m. Hope this helps

Please help me please help!!

Answers

Answer:

(1) -27

Step-by-step explanation:

[tex]-2(-3)^2+3(-3)[/tex][tex]-2(9)+(-9)[/tex][tex]-18-9[/tex][tex]-27[/tex]

please help 100 points

Answers

I could be wrong but if she spends $1 each day for chips. She would have 25¢ extra. And she buys 5 bags per week then she would have $1.25 per week. Add that into a graph to get a final answer.

Graph:
X| Y
1 | .25
2| .50
3| .75
4| 1.00
5| 1.25



Answer:

thx

Step-by-step explanation:

1/2(2c - 4) = 1/3(6c - 30)

Please don’t give me a wrong answer

Answers

are you trying to solve for c? if so c=8

what is the distance between piont S (3 -2) and point T (-5, -2)​

Answers

Answer:

8

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

Randall collects postcards that his friends
send him when they travel. He can put
6 cards on one scrapbook page. How
many pages does Randall need to fit
42 postcards? (SHOW YOUR WORK/STEPS)

Answers

Answer:

7pages

Step-by-step explanation:

42÷6= 7

You are dividing how many postcards you have with how many you can fit on one page. If you divide them, you will get your answer.

Randall needs 7 pages to fit 42 postcards.

Use long division to calculate 276 ÷ 15

Answers

Answer:

18.4

Step-by-step explanation:

if there are 250 fish in the lake and 50 more are added each year, write a linear equation

Answers

linear equation: y = 50x + 250

You have 33 math and science problems for homework. You have 7 more math problems than science problems. How many problems do you have in each subject?

For this question type the two equations that you are using and your solution to the system.

Answers

Answer:

x=33/7         m=7+x

Step-by-step explanation:

33 divided by 7 is 5 (when rounded) then you add 5 to 7 and get 12. Hope this helped yu!! Give brainliest.

Answer:

x=33/7         m=7+x

Step-by-step explanation:

so if you divide 33 by 7 you get 4.71428571429 which would be 5 when rounded and then you add 5 to 7 to get 12 I HOPE THIS HELLPEEDD

(29-(-7):
= =a
Look at picture

Answers

Answer:

Four

Step-by-step explanation:

29 plus 7 = 36 divided by 4= 9

Which points on this vertical number line best represent the locations of 2.5 and -
3
G
2
1 H
0
-191
Gand)
Previous
חו
Tyne here to search

Answers

Answer:

i think 1h but wait for someone else to answer to

How much is 2% of 3.50

Answers

Answer:

.07

Step-by-step explanation:

3.50 * 2% = .07

or

3.50 * .02 = .07

9) Choose which postulate proves the triangles congruent. *

A) ASA
B) SSS
C) AAS
D) SAS
E) HL

Answers

ASA. PQR and SQR are equal (A), both share QR (S), and PRQ and SRQ are equal (A).

If Tamair has $100 & gives $40 to her best friend Tsion, but Tsion gives $20 to Tamair, how much money does Tamair have left?

A) 90
B) 80
C) Tamair is broke
D) Tsion is broke

Answers

Answer:

B) 80

Step-by-step explanation:

Thats my bestie so dont mess with her or its gonna be a problem

HELP only answer to give right answer pleaseeee

Answers

Answer:

B=4

Step-by-step explanation:

The Y intercept is where the line meets with the middle of the graph

B=4!!!
The y-intercept of the line is B4

PLEASE HELP QUICKLY AS POSSIBLE THANK YOU :) ​

Answers

Answer:

12

Step-by-step explanation:

Answer: 12

Step-by-step explanation: Subtract 6 - 4 = 2. 2 * 2 = 4. 4 + 5 = 9. 9 - 3  = 6. 6 +6 = 12

Is y = 9x + 1/2 proportional?

Answers

Answer:

Yes it is

Step-by-step explanation:

The equation is proportional since as the value of x is increasing, y is also increasing

Equations can either be direct, inverse, or even joint. For instance, if y is directly proportional to x, this is expressed as:

y = kx

k is the variation constant

For a proportional equation, there an increase in a variable will lead to a decrease or increase in other variables

Given the expression y = 9x + 1/2,

when x = 1

y = 9(1) + 1/2

y = 9.5

when x = 2

y = 9(2) + 1/2

y = 18.5

We can see that the equation is proportional since as the value of x is increasing, y is also increasing

Learn more here: https://brainly.com/question/21284698

What is the value of the expression?

Answers

Answer:

Option D

Step-by-step explanation:

I evaluated the numbers in the parentheses and multiply both of them. Then I found the answer that is equivalent to mine. I got 7/10, which is also equal to 7.0 x 10^-1.

Hope this helps! :)


[tex] \frac{ - 2 + 3 \times 6} 5[/tex]
I need help please ​

Answers

-2 + 3 x 6

-2 + 18

16

16/5 or 3.2

Answer:

Step-by-step explanation:

we do first the multiplication 3*6=18

-2+18=16

16/5 is your answer or 3.2

Can anyone help me I’m struggling with this I would appreciate

Answers

I THINK 4x + 10y = -20 is the answer, bec there is no way u can answers that .

What is the total including sales tax for an item that cost 75.25 at a tax rate of 8%

Answers

Answer:

$81.27

Step-by-step explanation:

75.25 X 8% = $6.02 + 75.25 = $81.27

I give brainlest! 20 points! First place 5 stars and a heart! Second place 4 stars and a heart!

Write the percent as a fraction in simplest form and as a decimal. 36%

The fraction is

The decimal is

Answers

Fraction: 36/100 | Simplified: 9/25

Decimal: 0.36

I hope this helps, and Happy Holidays! :)

Answer:

fraction: 36/100 = 9/25

decimal: 0.36

Step-by-step explanation:

what is the quotient of -0.05 ÷ -5/16​

Answers

Answer:

Step-by-step explanation:

-0.05 you will multiply with reversal of -5/16

-0.05 x (-16/5)= 0.01x16=0.16

Find the slope-intercept equation of the line that
passes through (0,4) and has a slope of 1.

Answers

Answer:

y=1x+4 is the answer :))))

Answer:

y = x + 4

Step-by-step explanation:

slope intercept equation: y = mx + b

m = slope

b = y-intercept(when x =0)

use the points given; (0,4) and m = 1

to find b

y = mx + b

4 = 1(0) + b

4 = b

now put your equation together.

y = 1x + 4

or y = x + 4

Expand the expression 2(y + 5x)

Answers

Answer:

2y+10x

Step-by-step explanation:

distribute the 2 into the rest of the equation

can someone help me‼️

Answers

Answer:

55°

Step-by-step explanation:

180° - 125° = 55°

so angle 2 is 55 degrees

I think the answer is 55 degrees

Plz help ASAP!!!! I NEED IT!!!!!If you don't know the answer plz don't use an answer to say "oh idk" or sum like that

The shape we are referring to is the singular one

Which shapes are similar but not congruent to shape I?

The choices are the groups

Answers

Answer:

I wanna say the first picture second answer choice. Please tell me if I am right.

Step-by-step explanation:

Answer: The first group is the correct answer

Step-by-step explanation:

I took a test with this question got it right

Solve the equation
56 ÷ (-8)= ?

Answers

Answer:

-7

Step-by-step explanation:

Because for dividing one positive and one negative number, the rule is that the answer is going to be negative. So, what you can do is just do 56÷8 which equals 7 then add the negative sign to make it -7.

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