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
allsm [11]
3 years ago
14

Solve the system of equations using the elimination method 2x + 9y = -40

Mathematics
1 answer:
Ber [7]3 years ago
7 0
Wait like find the variables number ?
You might be interested in
The product of 5p2q and -4p3q4 is
Nitella [24]

Answer:

-20p^5q^5

Step-by-step explanation:

20p^5q^5 that's your answer

5 0
2 years ago
Please help with 32 and 33, thank you.
PtichkaEL [24]

Answer:

32. ∛((x-7)/4) = f^(-1)(x)

33. -10x - 9

Step-by-step explanation:

32. We want to switch f(x) and x, and then solve for f(x) to get the inverse.

x = 4f(x)³ + 7

subtract 7 from both sides

x -7 = 4f(x)³

divide both sides by 4

(x-7)/4 = f(x)³

cube root both sides

∛((x-7)/4) = f(x)

make f(x) f^(-1)(x) because this is now the inverse

∛((x-7)/4) = f^(-1)(x)

the second answer is correct

33. for composition, we can treat (f · g) (x) as attached picture (content filter!), so we plug g(x) into f(x). This results in

2(-5x-7) + 5

expand

-10x - 14 + 5

add

-10x - 9

the second answer is correct

4 0
3 years ago
Which of the following inequalities is best represented by this graph?
Nataly [62]
For this case, the first thing to do is find the equation of the line correctly and then see which of the inequalities represents the shaded region.
 We have then:
 5x - y = 2
 For x = 0 
 5 (0) - y = 2
 -y = 2
 y = -2
 For y = 0
 5x - 0 = 2
 5x = 2
 x = 2/5 = 0.4
 Therefore the line is:
 5x - y = 2 
 Then, we see that for the point (0, 0)
 5x - y ≥ 2
 5 (0) - (0) ≥ 2
 0 ≥ 2
 The inequality is not met, which is correct because this point is not part of the shaded region.
 Answer:
 The inequality that best is represented by the graph if: 
 5x - y ≥ 2
5 0
3 years ago
PLEASE help me with factorials and exponents. my work is in blue, how are they are all equal? I don't understand how the answer
Fynjy0 [20]
By choosing n = 2 you were able to show that they were the "equal to" part of the inequality.
2! = 1 × 2 = 2 

Try using n = 3
(n!)^{(n!)} =(3!)^{(3!)}=6^{6}=46656
(n!)^{n}=(3!)^{3}=6^{3}=216
n^{n}=3^{3}=27

8 0
3 years ago
The side lengths of a triangle are 5, 3, and 4. Is this a right triangle?<br>​
alina1380 [7]

Answer:

Yes

Step-by-step explanation: If you multiply all the number by the power of 2, you'll see that the two lower numbers equal up to the higher number.

5 0
2 years ago
Read 2 more answers
Other questions:
  • What is the answer to y=4x+3 for x= 1,0,1
    8·1 answer
  • What is 2.75 rounded to the nearest hundredth
    9·1 answer
  • 3( x -5)- 5x= 25+ 6x What is the answer and how do you solve this??
    12·1 answer
  • What is r the common ration in the geometic sequence 2, -14, 98, -687
    12·1 answer
  • Help ! <br><br> Will mark as brainliest
    5·1 answer
  • Use the distributive property to write an equivalent expression.<br><br> 6(s + 3t)<br>​
    7·1 answer
  • What is the volume, in cubic inches, of one cube with an edge length of 1/3 inch
    6·1 answer
  • Maria tiene hielo en su refrigerador a 7c en cierto momento saco la cubeta del congelador y olvido guardarla nuevamente luego de
    6·1 answer
  • Picture Added Triangles <br> AA <br> SSS<br> SAS<br> Not Similar
    13·1 answer
  • DO 11. Find the slope of the line that passes through the points<br> (-4, 7/2) and (3, -21/10)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!