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
sergij07 [2.7K]
3 years ago
14

Solve the quadratic inequalities, by either graphing, or pure algebraic method:

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
6 0

Answer:

less than/equal to -2

Or, greater than/equal to 2.5

Step-by-step explanation:

2x² - x - 10 ≥ 0

2x² - 5x + 4x - 10 ≥ 0

x(2x - 5) + 2(2x - 5) ≥ 0

(x + 2)(2x - 5) ≥ 0

Roots: -2, 5/2

x《 -2 or x》5/2

You might be interested in
(100 points & brainliest!)
Harrizon [31]

Okay so this is a very hard conceptual question. We need to prove that (x, y) is the ordered pair when "f(x) = g(x)".

"f(x) = g(x)" represents the point where the lines share a point or basically the intersection point of the two functions.

To prove that the intersection point is (x, y) let's find the x and y values at the point of intersection.

f(x) ----> the x-value is x and the y-value is f(x)

g(x) -----> the x-value is x and the y-value is g(x)

We know that f(x) = g(x) so we know that the y values match too.

We can also substitute a variable y for f(x) or g(x) (It is simply the y-value when x is plugged in for x. I know it sounds a bit confusing.).

So the solution when f(x) = g(x) is (x, y)!!!

5 0
3 years ago
1000 divided by _____________= 100
Maksim231197 [3]

Answer:

1000 divided by 10 = 100

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

7 0
3 years ago
Read 2 more answers
find the perimeter when 96 triangles are put together in the pattern shown below. Assume that all triangle sides are 1 cm long.
Vikentia [17]

The perimeter when 96 triangles are put together in the pattern shown below will be 98cm

Find the required triangle attached

In the diagram shown, we can see that we have 5 triangles.

The first thing we need to do is add one more triangle to have, six triangles,

Perimeter of the resulting 6 triangles = 6 + 2 = 8cm

For 8 triangles;

Perimter = 8 + 2 = 10cm

For "n" triangles;

Perimeter of n triangles = n + 2

Hence if 96 triangles are put together in the pattern shown below, hence

n = 96

Perimeter of the 96 triangles = 96 + 2

Perimeter of the 96 triangles = 98 cm

Hence the perimeter when 96 triangles are put together in the pattern shown below will be 98cm

Learn more here: brainly.com/question/13362349

4 0
3 years ago
4x-y=2 2x+9y=-12 unsure how to solve
Anna11 [10]
Simple, use the process of elimination to figure this out:

4x-y=2
2x+9y=-12

Convert these, to be able to find either x or y.

2(4x-y=2)   8x-2y=4   multiply by 2.
then
4(2x+9y=-12)  8x+36y=-48

Which makes them

8x-2y=4
-
8x+36y=-48

-38y=52

This simplified makes it y= -26/19.

Then plug y back into the original equation

4x-y=2

4x-(-26/19)=2

Making it x= 3/19.

Thus your Point of Intersection is at (3/19, -26/19)
8 0
3 years ago
Read 2 more answers
What is numerical coefficient of this term -3z
9966 [12]

Answer: -3

The coefficient is the number that is getting multiplied by the variable

5 0
3 years ago
Other questions:
  • The point (12,5) is on the terminal side of angle 0. Cos 0 = Cot 0 =
    6·1 answer
  • A bisector of an angle separates evenly into two parts of 45 degrees that means the two new angles are
    8·1 answer
  • A plane intersects a prism to form a cross section that is a polygon with five sides. The minimum number of sides that the polyg
    14·2 answers
  • And then what is the answer in slope intercept form?
    12·1 answer
  • What is the limit in kilograms? weight limit for checked baggage: 50 pounds.
    6·1 answer
  • Mason brought chocolate and vanilla cupcakes to school for his birthday 12 students decided to take a cupcake and 25% took vanil
    13·1 answer
  • 37. Find the area of each square below. ​
    6·1 answer
  • What do balloon mortgage and ARM have in common?
    5·2 answers
  • Which set of fractions is ordered from least to greatest
    6·1 answer
  • Please hurry!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!