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
Alex
4 years ago
8

Simplify, THEN evaluate for x = 3, y = -4, and z= -2. 7(x - y) - 3(2 + 2x)

Mathematics
1 answer:
Tamiku [17]4 years ago
8 0

Answer:  25

<u>Step-by-step explanation:</u>

   7(x - y) - 3(2 + 2x)

= 7x - 7y  - 6  - 6x

=   x - 7y  - 6

for x = 3, y = -4

      3 - 7(-4) - 6

=     3 + 28  - 6

=         31     - 6

=             25

You might be interested in
A sequence of two transformations that can be used to show that polygon ABCDE is congruent to polygon GFJIH
Burka [1]

Two transformations that can be used to show that polygon ABCDE is congruent to polygon GFJIH : <u>rotation -90° and translation (0,2)</u>

<h3>Further explanation</h3>

There are several forms of transformation, including translation, dilation, rotation or reflection

There are 2 shapes of geometry:

Similar figures:

the same shape but different in size,

Congruent figures:

the same size and the same shape

Both polygons will appear congruent if, after being transformed, the two polygons will map exactly to each other

A sequence of two transformations e can do is :

1. rotation -90°

Let point H(4,1) from polygon GFJIH , we rotate -90°

\left[\begin{array}{ccc}x'\\y'\end{array}\right]=\left[\begin{array}{ccc}0&1\\-1&0\end{array}\right]\left[\begin{array}{ccc}4-6\\1+1\end{array}\right]+\left[\begin{array}{ccc}6\\-1\end{array}\right]\\\\=\left[\begin{array}{ccc}0&1\\-1&0\end{array}\right]\left[\begin{array}{ccc}-2\\2\end{array}\right]+\left[\begin{array}{ccc}6\\-1\end{array}\right]\\\\=\left[\begin{array}{ccc}8\\1\end{array}\right]

2. translation (0,2)

\left[\begin{array}{ccc}8\\1\end{array}\right]+\left[\begin{array}{ccc}0\\2\end{array}\right]=\left[\begin{array}{ccc}8\\3\end{array}\right]

<h3 /><h3>Learn more</h3>

brainly.com/question/13715226

Keywords: transformation, translation, rotation

#LearnWithBrainly

7 0
3 years ago
Read 2 more answers
If 1 cm = 0.394 inches, how many inches are in 1 kilometer?
Marta_Voda [28]
Since 1 km is 100,000 cm there are 39,400 inches in a kilometer
8 0
3 years ago
Read 2 more answers
Olivia has 6 cups of trail mix. She plans to put 23 of a cup in each bowl at a party. How many bowls will Olivia need? Use paper
steposvetlana [31]

Answer:

so I think its 138 bowls so ya cause 6 times 23 is 138

4 0
3 years ago
Read 2 more answers
If the triangle are similar, write a similarity
Vesna [10]

Answer:

The triangles are similar due to AAA

Step-by-step explanation:

'The triangles ABC and DBE are similar because they have a common angle < B, and also angle < E is marked as congruent to angle < A. Then the third angle <C is going to be congruent to angle D as well due to the property of addition of internal angles of a triangle must add to 180 degrees.

Then the triangles are similar due to AAA

6 0
3 years ago
17. Write interval notation for the given graph.
Volgvan

Answer:

<u>D</u>

Step-by-step explanation:

The interval notation for the graph :

  • -5 ≤ x ≤ 7
  • <u>[5, 7]</u>
7 0
2 years ago
Read 2 more answers
Other questions:
  • Please explain!! 20 points and I will mark brainliest
    6·1 answer
  • Thirty million;two hundred twenty thousand, six hundred seventeen
    15·2 answers
  • The table of values below shows data for a five-word spelling test. Number of Letters vs. Percentage who Spelled Correctly Word
    9·2 answers
  • X+1.5 (x-3)=5/2 solve pls help me it's an immediate thing I will give 20 p for it
    14·1 answer
  • The lengths of plate glass parts are measured to the nearest tenth of a millimeter. The lengths are uniformly distributed with v
    11·1 answer
  • Determine if the given equations are parallel perpendicular or neither 3x+2y=6 and y=-3/2x+5
    12·2 answers
  • It took Jill two hours to drive 100 miles. what was her average speed?
    5·2 answers
  • Show all Work; Solve using the substitution method:<br><br> y=x-6<br> 3x-2y=8
    15·1 answer
  • PLEASE ANSWER THIS QUESTION ILL MARK YOU AS THE BRAINLIEST
    6·2 answers
  • Sheldon needs to buy 7 gallons of ice cream for a family reunion. the table shows the prices for different sizes of two brands o
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!