Mathematics High School

PLEASE HELP ME


Factor the quadratic equation x2 + 2x – 15 into the following format: (x + a) (x -b)

PLEASE HELP ME Factor The Quadratic Equation X2 + 2x 15 Into The Following Format: (x + A) (x -b)

Answers

Answer 1

Answer:

(x+5) (x-3)

Step-by-step explanation:

5 times -3= -15

5 + -3 = 2

Related Questions

Please help WHAT IS THE PERCENT OF 39.8 out of 200 QUICK PLEASE

Answers

Answer:

19.9%

Step-by-step explanation:

39.8/200 = 0.199 (move decimal two times)

19.9%

or you can just see what number get 200 to 100, which is by dividing by 2. What you do to the bottom you do to the top so 39.8/200 (divide both sides by 2)  = 19.9/100

which is 19.9%.

Ace Carlos

What is the final price of an item that cost $38 with 90% mark-up

Answers

Answer:

$342.00

Step-by-step explanation:

38 x 90  = 3420

Answer:

72.2

Step-by-step explanation:

38 * 190%

What is 5/7 x 14/20 equal

Answers

Answer:

5/7 x 14/20= 1/2 or 0.5

Write 264 as a product of primes. Use index notation when giving your answer.

Answers

Answer:

2^3 times 11 times 3

Step-by-step explanation:

264

/     /

2    132

       /  /

      2  66

          /  /

         2  33

             /  /       11 and 3

Work out the surface area of the solid cuboid.
8m
5m
2m

Answers

Answer:

Step-by-step explanation:

T.S.A=2(LXW) + 2(LXH) + 2(WXH)

=2(8mx5m) + 2(8mx2m) + 2(5mx2m)

=(2x40m²) + (2x16m²) + (2x10m²)

=80m² + 32m² + 20m²

=132m²

if anyone knows could u please help

Answers

multiply the input by -4 ..

PLEASE HELP ME ASAP!!!!

Answers

answer is d. to identify if a graph has a function or not, you have to look if there are two points of the same x value. (0,2) and (2,2) have the same x value of 2.

Acute angle illustration?

Answers

Step-by-step explanation:

Acute angles measure less than 90 degrees. Right angles measure 90 degrees

Answer:

∠

it has to be 89° or less, i dont know what your asking, try asking g00gle

After the 4th half life how much of the sample is left if the mass is 100g.

Answers

Answer:

[tex]\huge\boxed{\sf 6.25 \ g}[/tex]

Step-by-step explanation:

After every Half life , Half of the mass is left.

After 1st Half life = 100 g / 2 = 50 g

After 2nd Half life = 50 / 2 = 25 g

After 3rd Half life = 25 / 2 = 12.5 g

After 4th Half life = 12.5 / 2 = 6.25 g

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

3^(4x-5) = (1/27)^(2x+10) show your work

Answers

Answer:

3^4x-5=1/27^2x+10

We move all terms to the left:

3^4x-5-(1/27^2x+10)=0

Domain of the equation: 27^2x+10)!=0

x∈R

We get rid of parentheses

3^4x-1/27^2x-10-5=0

We multiply all the terms by the denominator

3^4x*27^2x-10*27^2x-5*27^2x-1=0

Wy multiply elements

81x^6-270x^2-135x^2-1=0

We do not support expression: x^6    

   

Step-by-step explanation:

A line with a slope of 1/3 passes through (-5,r) and (4,1).
To make this work correctly, the value of r=

Answers

Answer:

r=-2

Step-by-step explanation:

your welcome :D also if there's another answer could you give me brainliest pls

THIS IS URGENT PLZ HELP!!

Answers

Answer:

a^-b= 1/a^b

a^b/a^c= a^b-c

a^c/b^c= (a/b)^c

Step-by-step explanation:

Those are the right answers.

At a sleepover, three friends are 5/8 of a pizza. For a snack the next day, the friends at 1/2 if the leftover pizza. What fraction of the pizza was not eaten?

Answers

Answer:

if im thinking right (i dunno if i am) but im pretty sure its 3/16

Step-by-step explanation:

bc if 5 of the slices were eaten  that would be 3/8 and if they ate half of that the its 3/16 or 0.1875  I THINK im right but  double check

help fast please :) :) :) :) :)

Answers

Yeah I’m also not %100 but I agree with the first person, #3

Lauren has a bag containing 6 red, 8 blue, 5 green, 9 yellow, and 2 white marbles that are all the same size and shape. What is the probability or randomly choosing a white marble on the first pick, not replacing it, and then randomly choosing a green marble on the second pick?

Answers

the possibility it’s low because the yellow marbles have 9 nd the blue has 8 and the red one has 6 so green will be the second to last option

Answer:

can someone give us the answer if its independent or dependent

Step-by-step explanation:

Hey guys I need help on this one!!

Answers

Answer:

...........................................................

Step-by-step explanation:

Answer:

I would go for the last one

RST reflection across the y-axis will make it 2 units above UVW and so you go down 2 units

HELP ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

For Which expression is of trinomial degree 1?
6+X-y
For what is the value of M
5

Simplify the expression:
k–3k+5k

Answers

Answer:

3k

Step-by-step explanation:

k-3k = -2k

-2k+5k = 3k

..........

hereeee lol& thanks again<3!

Answers

Answer:

-1/2 is the slope. This means that the graph moves down one unit, and right 2 units (over and over again)

-1 is the y-intercept. This is where the line hits the y-axis

start by plotting the y-intercept (0,-1)

then move down one unit, and right two units, and plot another point.

this is the line y=-1/2x-1

Step-by-step explanation:

Step-by-step explanation:

hope it helps

............

Ready
Practice Unit Races for Ratios with Fractions - Practice - Level
Porter is on the swim team. In addition to swimming, he runs as part of his training.
Porter checks his heart rate halfway through his training session, as shown in the table.

Answers

Answer: 168

Step-by-step explanation:

Answer:

168

Step-by-step explanation:

159 bpm when he swims.

what is 10 +20-9+2+8-3

first to answer will get brainlyest

Answers

28!!!!!!!!!!!!!!!!!!!!

What is the Greatest Common Factor of 16 and 72?

Answers

Answer:

8

Step-by-step explanation:

there really isn't a huge explanation just that both can have 8 go into it equally lol

4) Which expression is equivalent to 9(9m + 3t) ? 6.EE.A.3"
5 points
A) 18m + 3t
B) 81m + 3t
C) 18m + 12
D) 81m + 271

Answers

The answer is D; could you make me the brainiest? Because the answer is 81m+27t

PLS HELP NEED ANSWER ASAP PLSSSS

Eva left her home and drove for 4.3 hours due north at a rate of 60 miles per hour. After visiting a beach, she drove due south for 3.4 hours at 55 miles per hour.


How many miles is Eva from her home?

Answers

Answer:

166

Step-by-step explanation:

Identify the three similar right triangles in the given diagram.

Α. ΔΕFH, ΔEFG, ΔΕGH
Β. ΔEFH, ΔEGF, ΔFGH
C. ΔEHF, ΔEGF, ΔFGH
D. ΔΕFH, ΔEFG,ΔFGH

Answers

The answer is B, it’s not D because it is set up wrong

Answer:

Β. ΔEFH, ΔEGF, ΔFGH

A chemist is using 348 milliliters of a solution of acid and water. If 14.4% of the solution is acid, how many milliliters of acid are there? Round your answer to
the nearest tenth.
milliliters
Х
5
?

Answers

Answer:

50.1 milliliters

Step-by-step explanation:

hope this helps!

1. An initial population of 10 cats triples every year. How many cats will there be in 5 years? Make a table and
graph your results.

Answers

Answer:

150

Step-by-step explanation:

file is graph

What is the slope of the line shown below?

(4,8)
(2, 4)

Answers

Answer: The slope of the line is 2.

Step-by-step explanation:

Slope = change in y/change in x

Slope = (8-4)/(4-2)

Slope = (4)/(2)

Slope = 2

Answer:

1/2

Step-by-step explanation:

The relationship between the number of boxes of printer paper purchased and total cost is represented in the table below.What is the cost of 1 box of paper?

Use the on-screen keyboard to type the correct answer in the box below.

Answers

Answer:Cost of 1 box of paper is 7.25

Step-by-step explanation:When you look at the table all you really need to do is divide 2 and 14.50 and you'll get you answer

Dr. Montgomery recently graduated from medical school and his wife bought him an engraved stethoscope. The stethoscope cost $160.00. The sales tax in his city is 8%. What is the total cost of the stethoscope in dollars and cents including sales tax?

Answers

Answer:

172.8

Step-by-step explanation:

Answer:

172.8

Step-by-step explanation: Dont Trust Me But Its Right B)

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