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
notka56 [123]
3 years ago
11

Can someone help me with letter (a) please I really need help

Mathematics
1 answer:
Maksim231197 [3]3 years ago
6 0

Answer:

Step-by-step explanation:

2x² + 12x - 13 = 2(x² + 6x) - 13

You might be interested in
Solve for x: 2(2a+3)-6=5a+2
coldgirl [10]

Answer:

a=-2

We move all terms to the left:

2(2a+3)-6-(5a+2)=0

We multiply parentheses

4a-(5a+2)+6-6=0

We get rid of parentheses

4a-5a-2+6-6=0

We add all the numbers together, and all the variables

-1a-2=0

We move all terms containing a to the left, all other terms to the right

-a=2

a=2/-1

a=-2

Step-by-step explanation:

We move all terms to the left:

2(2a+3)-6-(5a+2)=0

We multiply parentheses

4a-(5a+2)+6-6=0

We get rid of parentheses

4a-5a-2+6-6=0

We add all the numbers together, and all the variables

-1a-2=0

We move all terms containing a to the left, all other terms to the right

-a=2

a=2/-1

a=-2

Please like and give me Brainliest!

3 0
3 years ago
Read 2 more answers
Let f(x) = 3x + 7 and g(x) = 4x – 2. Find (f composited with g) (–6).<br> A.-71 B.-47 C.-72 D.-46
leonid [27]
Hello :
(fog)(-6) = f(g(-6))
but : g(-6) =4(-6)-2 =-26
(fog)(-6) = f(g(-6)) = f(-26) =3(-26)+7 = -78+7=-71(answer : <span>A.-71 )</span>
4 0
3 years ago
To prove that the triangle are similar by the sss similarity theorem it needs to be shown that
Korolek [52]

For this case, we have that by definition, the triangle similarity theorem related to the angles, establishes that:

  • <em>For two triangles to be similar, the angles of one of them must be congruent to the angles of the other triangle. </em>

On the other hand, we have:

  • <em>For a pair of triangles to be similar, it is sufficient to have a congruent angle between the proportional sides. </em>

In addition, we have the following side theorem (SSS):

  • <em>Two triangles that have the three proportional sides are similar to each other. </em>

ANswer:

Two triangles that have the three proportional sides are similar to each other.

4 0
3 years ago
The profits in hundreds of dollars, P(c), that a company can make from a product is modeled by a function of the price, c, they
Jobisdone [24]
The maximum profit is the y-coordinate of the vertex of the parabola represented by the equation.

P(c)=-20c^2+320c+5120 \\ \\&#10;a=-20 \\&#10;b=320 \\ \\&#10;\hbox{the vertex } (h,k): \\&#10;h=\frac{-b}{2a}=\frac{-320}{2 \times (-20)}=\frac{-320}{-40}=8 \\&#10;k=f(h)=f(8)=-20 \times 8^2+320 \times 8+5120= \\&#10;=-1280+2560+5120=6400

The maximum value is 6400, but the profit is given in hundreds of dollars, so multiply the value by 100.

The maximum profit the company can make is $640,000.
4 0
3 years ago
Read 2 more answers
Clayton climbed down 50 meters. He climbed down in 10-meter intervals. In how many intervals did Clayton make his climb?
Paha777 [63]
Clayton made his climb in 5 intervals, since 50 divided by 10 is 5.
4 0
3 years ago
Other questions:
  • The accepted density of copper is 8.69 g/ml. Calculate the % error if you measured 8.50 g/mL.
    13·1 answer
  • What Fraction Is Equivalent to 3/9
    12·2 answers
  • 3. What is the net amount that a contestant should expect to win per game if the game were to be played many
    11·1 answer
  • I need help with all pls help me
    15·1 answer
  • 7x-4(6-x)+12 if x = 6
    15·1 answer
  • 22 points Please Help!!
    7·1 answer
  • A line can be named by using:
    13·2 answers
  • Which of the following is(are) the solution(s) to | 3 x + 10 |= 10 ?
    15·1 answer
  • At a factory that produces pistons for cars, Machine 1 produced 174 satisfactory pistons and 116 unsatisfactory pistons today. M
    5·1 answer
  • The length of the longer leg of a right triangle is 13 m more than three times the length of the shorter leg. The length of the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!