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
laiz [17]
3 years ago
14

Which expression is equivalent to 2.2 - 2.5?

Mathematics
1 answer:
Fiesta28 [93]3 years ago
7 0

Answer:

C

Step-by-step explanation:

2.2-2.5

Since a + and a - make a minus if we have 2.2+(-2.5) we would get 2.2-2.5. So C is the anwser.

You might be interested in
How many computers must the AB Computer Company sell to break even? Let x be the number of computers.
maksim [4K]

You break even if you spend exactly as much as you gain. In other words, if the cost and the revenue are the same:

C(x)=R(x) \iff 145+0.25x=1.5x

Subtract 0.25 from both sides:

145=1.25x

Divide both sides by 1.25:

x=\dfrac{145}{1.25}=116

So, they must sell 116 computers to break even. If they sell less, they'll lose money. If they sell more, they'll start making profit.

4 0
3 years ago
Look at pic thanks<br> then tell anser
sp2606 [1]

Answer:

thanks for the points

Step-by-step explanation:

it's a lot not "alot" by the way thought you would like to know.

8 0
3 years ago
What is the slope of a line that is perpendicular to the line<br> y = 2x – 6?
Zolol [24]

Answer:

The slope of a line that is perpendicular to the line y = 2x – 6 is -1/2.

Step-by-step explanation:

The slope-intercept form of the line equation

y = mx+b

where

  • m is the slope
  • b is the y-intercept

Step 1:

Finding the slope of the given equation

The given equation is

y = 2x - 6

comparing with the slope-intercept form of the line equation

The slope of the equation is: m = 2

Step 2:

Determining the slope of the perpendicular line

In Mathematics, a line perpendicular to another line has a slope that is the negative reciprocal of the slope of the other line.

  • As the slope of the equation is: m = 2

Therefore, the slope of the new perpendicular line:

-\frac{1}{m}=-\frac{1}{2}

Hence, the slope of a line that is perpendicular to the line y = 2x – 6 is -1/2.

Important Tip:

  • The product of the slopes of perpendicular lines is -1.

<u>Verification:</u>

The slope of the given line:

m_1=2

The slope of the perpendicular line:

m_2=-\frac{1}{2}\:\:\:\:

The product of the slopes is:

\:m_1\times \:m_2\:=2\times -\frac{1}{2}\:\:=-1

As the product of the slopes of perpendicular lines is -1, therefore, the lines are perpendicular.

Thus, the slope of a line that is perpendicular to the line y = 2x – 6 is -1/2.

7 0
3 years ago
Find the area of the shape. Either enter an exact answer in terms of π or use 3.14, point, for π and enter your answer as a deci
vredina [299]

Answer:

25π

Step-by-step explanation:

1) for whole circuit: A=π*r², where r - radius of the given circle;

2) for a quater of the circuit: A=πr²/4;

3) finally, A=π*100/4=25π.

7 0
2 years ago
Determine if the sequence is arithmetic. If it is, find the common difference.
Margaret [11]

Answer:

1) Arithmetic since it decreases by 3 so, -3n + 38.

2) Arithmetic since it decreases by 20 each time, so -20n+17

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • The difference in the measures of two complementary angles is 12 degrees. find the measure of the angles?
    6·2 answers
  • Can someone help me in this thanks
    8·2 answers
  • In the graph, what are the x and y coordinates of the center?
    15·2 answers
  • 3 to the 10th power = 3 to the 7th power times x to the 3rd power (solve for x)
    7·1 answer
  • A quilt piece is designed with four congruent triangles to form a rhombus so that one of the diagonals is equal to the side leng
    12·2 answers
  • For safety reasons, four different alarm systems were installed in the vault containing the safety deposit boxes at a beverly hi
    9·1 answer
  • How to solve y=2x-15 and y=5x
    15·1 answer
  • -4 5/1 as a simplified fraction?
    15·1 answer
  • Identify the independent variable shown on the graph.
    6·1 answer
  • A ladder makes a 35° angle of elevation with the ground. Find the length of the
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!