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
alexandr1967 [171]
3 years ago
6

Please help me !!

Mathematics
2 answers:
aleksley [76]3 years ago
6 0
1)~3x-7-2x+5=6\iff (3x-2x)+(-7+5)=6\iff\\\\ x-2=6\iff x=6+2\iff\boxed{x=8}\\\\
2)~A(x)=\dfrac{f(2)-f(-5)}{(2)-(-5)}=\dfrac{(2^2+7\cdot2+10)-((-5)^2+7\cdot(-5)+10)}{7}\\\\=\dfrac{(4+14+10)-(25-35+10)}{7}=\dfrac{28-0}{7}=\dfrac{28}{7}=4\iff\boxed{A(x)=4}
lilavasa [31]3 years ago
5 0
Number 1 is x=8!! 


2 is pretty confusing so I hope someone else can answer two as I have answered 1!
You might be interested in
Find equations for those tangent lines to<br> the graph of<br> y = x − 3/x
pychu [463]

Step-by-step explanation:

y=X -3/X

y=X/1 -3/x

y= 2x -3/x

y*X= 2x-3

y*X/2 = x-3

7 0
3 years ago
8775 find the prime factorization of the number
OLEGan [10]

8775

/     \

3     2925

/       \

3      975

/       \

3      325

/       \

5      65

/       \

5      13

/       \

13      1


Prime Factors: 3, 3, 3, 5, 5, 13

5 0
3 years ago
I already solved this problem. I just need help with the HINT part.
frutty [35]
x+y=25 \\ y=25-x~~Other~number~in~terms~of~x \\ \\ x^2+y^2=313 \\ x^2+2xy+y^2=313+2xy \\ (x+y)^2=313+2x(25-x) \\ \frac{25^2-313}{2} =25x-x^2 \\ x^2-25x+156 \\ \\ \Delta =(-25)^2-4\times 1\times 156 \\ \Delta =625-624 \\ \sqrt{\Delta}=1 \\ \\ x= \frac{25 \pm 1}{2} \\ x= \left \{ {{x_1=13} \atop {x_2=12}} \right.

     The number "x" is given by:
y= \left \{ {{y_1=25-13 \rightarrow~y_1=12} \atop {y_1=25-12 \rightarrow ~y_1=13}} \right.
  
     Therefore, we have:

\boxed {S=({12,13})} \rightarrow~The~curly~braces~does~not~want~appear~here.
8 0
3 years ago
A dependent system of equations is a system with __________.
andre [41]
The same line is written in two different forms
6 0
3 years ago
How do you rename a mixed number as a fraction khan academy.
elena-s [515]

Answer:

There's no answer choices but I can give you an example.  

Step-by-step explanation:

  1. Let's say you have \frac{25}{4}.  
  2. Think about what the closest whole number 25/4 will give you.  Since 24 and 25 are close you can do 24/4 and get 6.  
  3. Now since you took one number away from the 25 you have a remainder.  
  4. Since the denominator is 4 your final answer would be 6\frac{1}{4}.  

Hopefully this helps.  

5 0
2 years ago
Other questions:
  • the area of a rectangular patio is represented by the expression 6x^2+13-5. the width of the patio is (3x-1) write an expression
    8·1 answer
  • Linh has obtained scores of 82, 79, and 75 on her midterm algebra exams. If the final exam counts twice as much as a midterm, wh
    8·1 answer
  • A box with a square base and no top is to be built with a volume of 4000 in3. find the dimensions of the box that requires the l
    7·1 answer
  • Determine if parallel, perpendicular, or neither. ​
    12·1 answer
  • .<br> Find the 20th term of the arithmetic sequence 15, 9, 3, -3
    15·1 answer
  • Which point best represents V68?<br> A)<br> point A<br> B)<br> point B<br> point<br> D)<br> point D
    10·2 answers
  • Can someone plz help me with this one problem plzzzzz!!!
    7·1 answer
  • Y= -1.4 -1 x intercept?
    5·1 answer
  • The length of the base of a triangle is 7 units and the height is 4
    8·1 answer
  • Write the slope-intercept form of the equation of the line through the given point with the given slope.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!