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
Morgarella [4.7K]
3 years ago
11

(5n - 3) - (-2n + 7)

Mathematics
1 answer:
AleksandrR [38]3 years ago
4 0

Answer:

7n-10

Step-by-step explanation:

=(5n-3) - (-2n) -7 [Bracket Opens]

=5n - 3 +2n -7 [- × - = +]

=7n - 10 [ addition]

You might be interested in
Find the length of side AB<br> Give answer to 3 significant figures
Rina8888 [55]

Answer:

AB = 8.857 cm

Step-by-step explanation:

Here, we are given a <em>right angle</em> \triangle ABC in which we have the following things:

\angle A = 90 ^\circ\\\angle C = 41 ^\circ\\\text{Side }BC = 13.5 cm

Side <em>BC </em>is the hypotenuse here.

We have to find the side <em>AB</em>.

Trigonometric functions can be helpful to find the value of Side AB here.

Calculating \angle B:

Sum of all the angles in \triangle ABC is 180^\circ.

\Rightarrow \angle A + \angle B + \angle C = 180^\circ\\\Rightarrow 90^\circ + \angle B + 41^\circ = 180^\circ\\\Rightarrow \angle B = 49^\circ

We know that <em>cosine </em>of an angle is:

cos \theta = \dfrac{\text{Base}}{\text{Hypotenuse}}\\\Rightarrow cos B = \dfrac{AB}{BC}\\\Rightarrow cos 49^\circ = \dfrac{AB}{13.5}\\\Rightarrow AB = 13.5 \times 0.656\\\Rightarrow AB = 8.857 cm

So, side AB = 8.857 cm .

6 0
2 years ago
Look at the Screenshot and ANSWER THE QUESTION
ad-work [718]

Answer:

Graph C is the answer.

Step-by-step explanation:

From the graphs attached,

Graph A

Given graph represents a cubic function.

Graph B

This graph represents a piecewise  function.

Graph C

This graph represents an exponential function.

Graph D

Given graph represents a quadratic function.

Graph C is the answer.

6 0
3 years ago
Currently, each student in our school system is assigned a 6-digit (each
N76 [4]

Answer:

26,000,000 codes

Step-by-step explanation:

To find how many unique codes can be created, we just need to check how many possibilities there are for each letter or digit in the code.

Each letter has 26 possible values, and each digit has 10 possible values, so as we have 1 letter and 6 digits, the total number of unique codes are:

26 * 10 * 10 * 10 * 10 * 10 * 10 = 26,000,000 codes.

6 0
3 years ago
Jeene and her friends were selling cookies. They sold four more boxes second week in the than they did the first week . On the t
Georgia [21]

Answer:

i did 352 x 2 witch was 704 so i believe that it is 704 bc it said they sold double the sale of their second week

hoped this helped let me know if it did

8 0
3 years ago
Write down tower more multiples with the answer of 33.642
DENIUS [597]

Answer:

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?
    8·2 answers
  • Yasmine is serving Icecream with the birthday cake at her party she has purchase 19 1\2 pint of ice cream she will serve 3/4 of
    12·2 answers
  • Point P is reflected across two lines. Point E is its reflection image. Which two lines is point P reflected across?
    13·2 answers
  • Find equation of the line
    8·1 answer
  • HELP ASAP!!!!!!!!!!!
    6·2 answers
  • 12^{3}-9x^{2}-4x+3 in factored form by grouping
    11·1 answer
  • Find the slope of a line through the points (0,0) and (2, 9). Round your
    14·1 answer
  • The point E(-1,0) is translated 6 units down what are the coordinates
    13·1 answer
  • D/4 &gt; 5<br> solve for the variable
    9·1 answer
  • Can anyone explain theoretical and experimental portability because math is so difficult
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!