1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NeTakaya
3 years ago
12

Help please 40 points per question

Mathematics
1 answer:
lesya [120]3 years ago
7 0
Use FOIL (First, Outside, Inside, Last)

x(x) = x²
x(9) = 9x
-2(x) = -2x
-2(9) = -18

x² + 9x - 2x - 18

simplify by combining like terms

x² + 9x - 2x - 18

x² + 7x - 18

x² + 7x - 18 is your answer

hope this helps
You might be interested in
Sydney needs to earn $35 so she can buy her father a birthday present. her mom said she can make $6 per hour cleaning around the
grin007 [14]
K = 13The smallest zero or root is x = -10
4 0
3 years ago
The graph below shows the solution to a system of inequalities: Solid line joining ordered pairs 0, 3.75 and 15, 0. Shade the po
algol [13]
(0,3.75)(15,0)
slope(m) = (0 - 3.75) / (15 - 0) = -3.75/15 = - 0.25 or -1/4

y = mx + b
slope(m) = -1/4
(15,0)...x = 15 and y = 0
now we sub
0 = -1/4(15) + b
0 = -15/4 + b
15/4 = b

y = -1/4x + 15/4
1/4x + y = 15/4....multiply by 4
x + 4y = 15.....and since it is a solid line, it contains an equal sign...and since it is shaded above the line, it is greater.
so ur inequality is : x + 4y > = 15 (thats greater then or equal)
4 0
3 years ago
Read 2 more answers
How do you simplify 2i<6u ?
marusya05 [52]
In simplifying inequalities, there are a few things that you have to remember. Here are some:

<span>Many simple inequalities can be solved by adding, subtracting, multiplying or dividing both sides until you are left with the variable on its own.
But these things will change direction of the inequality:<span>Don't multiply or divide by a variable (unless you know it is always positive or always negative)

We simplify as follows:
2i/2<6u/2
i<3u</span></span>
5 0
2 years ago
V^2 = u^2+ 2as<br>u = 12<br>a = -3 s = 18<br>Work out a value of v.​
Shkiper50 [21]

Answer:

use math-way

Step-by-step explanation:

6 0
3 years ago
For what value of x is the rational expression below equal to zero 20+2x/5-x
Yuliya22 [10]
\frac{20+2x}{5-x}=0;\ \ \ \ D:x\neq5\\\\\frac{20+2x}{5-x}=0\iff20+2x=0\\\\2x=-20\ \ \ \ /:2\\\\x=-10\in D
4 0
3 years ago
Other questions:
  • Help I​ don't​ know what to do and this is due tomorrow​
    15·2 answers
  • A standard die is rolled 600 times. How many times would you expect to roll a number
    5·2 answers
  • (x6 y3)(5xy2)(−7x5)<br><br> I need the answer<br> pleasseee
    7·2 answers
  • What is the area for all of them
    7·2 answers
  • Sergio is working on a research project involving the ages of students at Brooklyn College. After interviewing 500 students, he
    15·1 answer
  • A bag contains 26 tiles, each marked with a different letter of the alphabet. What is the probability of being able to spell the
    14·1 answer
  • Whats the answer to x+3/4=5/8
    15·2 answers
  • PLEASE HELP ME NOW!!!!!!!
    11·1 answer
  • Kristy asks lonnie of a number add 3 to it multiply the sum by 2 and then subtract 6.Let n stand for Lonnies number.What express
    13·1 answer
  • Please help me with this graph!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!