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
Savatey [412]
3 years ago
9

(2ab-7a-4) - (7ab-4) Hi plz help

Mathematics
1 answer:
choli [55]3 years ago
6 0

Step-by-step explanation:

(2ab-7a-4) - (7ab-4)

= 2ab - 7a - 4 - 7ab +4

(-) × (-) = (+)

(-) × (-) = (+)-(-4)= +4

then 4 will be cancelled

= 2ab - 7ab - 7a

= -5ab -7a

You might be interested in
What is this I need the answer
Archy [21]
<h3>Answer is  0</h3>

===========================================================

Explanation:

Logarithms are used to solve exponential equations. Specifically if you have a variable in the exponent, then you use a log to isolate the variable.

If we set the given log expression to x, then we can rewrite it into 8^x = 1. The only value of x that works is x = 0.

------------

Or put another way,

8^x = 1

8^x = 8^0 ... replace the 1 with 8^0

x = 0 ... the bases are equal (to 8) so the exponents must be equal

------------

You can use the change of base formula to directly calculate this log

\log_8(1) = \frac{\log(1)}{\log(8)} = \frac{0}{0.903} = 0

8 0
3 years ago
How to set up and solve a system of equations to solve a problem
Paladinen [302]

Answer:

Step-by-step explanation:

Step 1: Solve one of the equations for one of the variables.

Step 2: Substitute that equation into the other equation, and solve for x.

Step 3: Substitute x values into one of the original equations, and solve for y.

6 0
3 years ago
Given a polynomial f(x), if (x − 1) is a factor, what else must be true?
Vaselesa [24]
It has to be a recursive equation
7 0
3 years ago
Which binomial is a factor of 9x2 - 64?<br> COM<br> 3x - 8<br> 9x - 32<br> 3x + 32<br> 9x + 8
tresset_1 [31]

Answer:

3x - 8

Step-by-step explanation:

9x² - 64 is a perfect square binomial

3x - 8 and 3x + 8 are the factors

3 0
3 years ago
Read 2 more answers
Penny translate a trapezoid so that one of the vertices is at the origin. if the pre-image has a perimeter of 44 units what is t
WINSTONCH [101]

<span>Translations are part of rigid motions which also include reflection and rotation. For these three, we can then assume that neither the perimeter nor the area of an object would change. This means that, once an object is translated it is not biased or distorted (either enlarged or diminished). Thus, making the perimeter of the original and the image are equal. So for this problem, the perimeter of the image would be the same as the pre-image, and that would be 44 units. </span>

5 0
4 years ago
Other questions:
  • Simplify. 8/ 9+(−5/6)1/6 Enter your answer, in simplest form, in the boxes.
    14·1 answer
  • Triangle fgh is a right triangle? true or false
    6·2 answers
  • Can someone please help
    14·2 answers
  • The number 75,361,665 rounded to the nearest hundred is
    5·2 answers
  • Bill and Ellen have $65.00 total to go out to dinner. Knowing they need to leave 15% of their bill as a tip for the waiter, what
    11·2 answers
  • If the equation y=-5x+12 is translated up five units, what would the new equation be?
    8·2 answers
  • The height (in feet) of a certain rocket t seconds after it leaves the ground is modeled by
    13·1 answer
  • What is the area of trapezoid DEFG with coordinates D (2, 3), E (5, 3), F (3, 1), and G (2.1)? O 2 square units O 3 square units
    10·1 answer
  • A bag contains 6 red marbles. The ratio of red marbles to blue marbles is 2 for every 5. Find the number of blue marbles in the
    6·1 answer
  • Find the surface area of the triangular prism the base of the prism is an isosceles triangle 42cm 37cm 35cm 24cm
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!