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
gregori [183]
3 years ago
7

9x – 5 < –41 or 3x + 13 > 7

Mathematics
2 answers:
aev [14]3 years ago
5 0
9x - 5 < -41
    +5      +5
9x < -36
x < -4

3x + 13 > 7
       -13   -13
3x      > -6
x > -2

x < -4 OR x >2
Elis [28]3 years ago
4 0
9x-5<-41                  or          3x+13>7
9x-5+5<-41+5                        3x+13-13>7-13 
9x/9<-36/9                             3x/3>-6 /3 
x<-4                                      x>-2
You might be interested in
Write 3 tens 9 ones in another way
Vsevolod [243]
3 tens is 3 * 10 = 30
9 ones is 9 * 1 = 9
30 + 9 = 39
Answer: 39

5 0
3 years ago
PLEASE ANSWER SOON<br> Has a picture of question
earnstyle [38]
The answer is 21 which comes from 7 * 3.

Draw the four points in a complex plane. From the drawing you can see that the lenght is 4i - (-3i) = 4i + 3i = 7i, and the width is 1 - (-2) = 1 + 2 = 3.

So, the area is 7 * 3 = 21.




8 0
3 years ago
Question 8<br> Calculate the difference (4x2 + x - 5) – (5x2 - 1).
Rufina [12.5K]

Answer:

x - 6

Step-by-step explanation:

(4x2 + x - 5) - (5x2 - 1)

According to the order of operations, parenthesis come first so we will solve what is in the parenthesis first.

Then we do the multiplication because it comes before addition and subtraction.

4x2 = 8

Now we have 8 + x - 5

Combine like terms and 8-5=3 so we have 3 + x

Now for the second one.

5x2=10

10-1=9

Subtracting this from the first expression we have:

3+x-9 =

x - 6

7 0
2 years ago
Two cars simultaneously left Points A and B and headed towards each other, and met after 2 hours and 45 minutes. The distance be
Oksana_A [137]
<h2>Hello!</h2>

The answers are:

FirstCarSpeed=41mph\\SecondCarSpeed=55mph

<h2>Why?</h2>

To calculate the speed of the cars, we need to write two equations, one for each car, in order to create a relation between the two speeds and be able to calculate one in function of the other.

So,

Tet be the first car speed "x" and the second car speed "y", writing the equations we have:

For the first car:

x_{FirstCar}=x_o+v*t

For the second car:

We know that the speed of the second car is the speed of the first car plus 14 mph, so:

x_{SecondCar}=x_o+(v+14mph)*t

Now, from the statement that both cars met after 2 hours and 45 minutes, and the distance between to cover (between A and B) is 264 miles,  so, we can calculate the relative speed between them:

If the cars are moving towards each other the relative speed will be:

RelativeSpeed=FirstCarSpeed-(-SecondCarspeed)\\\\RelativeSpeed=x-(-x-14mph)=2x+14mph

Then, since we know that they covered a combined distance equal to 264 miles in 2 hours + 45 minutes, we have:

2hours+45minutes=120minutes+45minutes=165minutes\\\\\frac{165minutes*1hour}{60minutes}=2.75hours

Writing the equation:

264miles=(2x+14mph)*t\\\\264miles=(2x+14mph)*2.75hours\\\\2x+14mph=\frac{264miles}{2.75hours}\\\\2x=96mph-14mph\\\\x=\frac{82mph}{2}=41mph

So, the speed of the first car is equal to 41 mph.

Now, for the second car we have that:

SecondCarSpeed=FirstCarSpeed+14mph\\\\SecondCarSpeed=41mph+14mph=55mph

We have that the speed of the second car is equal to 55 mph.

Hence, the answers are:

FirstCarSpeed=41mph\\SecondCarSpeed=55mph

Have a nice day!

7 0
3 years ago
What is the solution to this system of equations<br>A. (4,2)<br>B. (8,4)<br>C. (4,8)<br>D. (2,4)​
svlad2 [7]

Answer:

B. (8,4)

Step-by-step explanation:

To find the solution of the system, look at where the lines intersect. The intersecting point is (8,4). The solution to the system of equations is (8,4).

5 0
3 years ago
Read 2 more answers
Other questions:
  • PLZ HELP ME ASAP.. Which is the correct algebraic expression after combining like terms?
    9·1 answer
  • If 40 percent of a movie ticket costs $5.00 what is 20 percent of the cost of two tickets
    8·1 answer
  • Please help answer this thanks
    15·1 answer
  • Suppose you are working with a data set that is normally distributed, with a mean of 200 and a standard deviation of 47. Determi
    13·1 answer
  • -6.1 , 2.2. On a graph
    7·2 answers
  • Big Red Gymnastics Academy charges an initial fee of $200 to rent its gym for birthday parties. The academy then charges an addi
    9·2 answers
  • Can someone please help with . Thank u
    13·1 answer
  • Determine a series of transformations that would map Figure C onto Figure D plz help asap
    8·1 answer
  • If 12 out of 15 people recycle aluminum cans, how many people out of 1 million would you expect to recycle? ( Answer fast please
    5·1 answer
  • Find the exact value of each expression.<br> sin0 , if cos 0 =3/5 and 270° ≤0 ≤360°
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!