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
Simora [160]
3 years ago
8

(2a+b)^2÷(3b-1) when a= -2 and b=5

Mathematics
1 answer:
WINSTONCH [101]3 years ago
6 0
Evaluate (2 a + b)^2/(3 b - 1) where a = -2 and b = 5:
(2 a + b)^2/(3 b - 1) = (5 - 2×2)^2/(3×5 - 1)

3×5 = 15:
(5 - 2×2)^2/(15 - 1)

 | 1 | 5
- | | 1
 | 1 | 4:
(5 - 2×2)^2/14

2 (-2) = -4:
(-4 + 5)^2/14

5 - 4 = 1:
1^2/14

1^2 = 1:

Answer: 1/14
You might be interested in
Which equation, when graphed, has x-intercepts at (-1,0) and (-5,0) and a y-intercept at (0, -30)?
Vladimir [108]

If a function has roots -1 and -5, it must be in the form

f(x)=a(x+1)(x+5)

We can fix the coefficient a by imposing the passing through (0,-30):

f(0)=-30=a(1)(5)\iff a=-6

So, the function is

f(x)=-6(x+1)(x+5)

7 0
3 years ago
Which one of these is the correct answer?
sukhopar [10]

Answer:

the top answer.............

8 0
2 years ago
The amount​ (in megawatts) of energy generated in a country from wind power can be modeled by the function ​W(t)equalsw0​(1.90​)
Ad libitum [116K]

Answer with Step-by-step explanation:

We are given that

W(t)=W_0(1.90)^t

Where t corresponds to the year 2000=0

a.W(0)=2540MW

Substitute the values

2540\times 10^6=W_0(1.90)^0=W_0

W_0=2540MW

b.In  2004

t=4

W(4)=2540(1.90)^4

W(4)=33101.534 MW

c.In 2013

t=13

W(13)=2540(1.9)^{13}=10.68\times 10^6MW

6 0
3 years ago
Can anyone help me with this?
Vika [28.1K]

Answer:

x = 51

Step-by-step explanation:

The figure shown is a pentagon

The angles in a pentagon add up to equal 540

Which means that 77 + 107 + 156 + 149 + x = 540

                                    ^ ( note that we just created an equation that we can      

                                        use to solve for x )

We then solve for x using that equation

77 + 107 + 156 + 149 + x = 540  

step 1 combine like terms

77 + 107 + 156 + 149 = 489

we now have 489 + x = 540

step 2 subtract 489 from each side

489 - 489 cancels out

540 - 489 = 51

we're left with x = 51

3 0
2 years ago
If you roll 3 dice (one white, one black, and one red), find the probability that
zheka24 [161]
<span>respon en los comentario y escribe bien la pregunta para responderte

respond in the comments and write the question well to answer
</span>
3 0
3 years ago
Other questions:
  • 9^y-3=8<br><br> JUST DO IT!<br> PLZ...
    6·1 answer
  • Express the polynomial as a product of linear factors. 3x^3+12x^2+3x-18
    11·2 answers
  • Suppose c and d vary inversely, and d = 2 when c = 17.
    10·1 answer
  • the side length of a cube can be represented by the expression 2x^5. if the side length is doubled, write an expression to repre
    13·1 answer
  • According to this diagram, what is tan 74°?
    6·1 answer
  • 50 points will give BRAINLIEST ASAP<br> Graph the function<br> f (x) = 3√x−2
    13·1 answer
  • Find the missing side of the triangle.
    13·1 answer
  • Compound interest compounded quarterly is given every ______ months. *<br> 1 point<br> 1<br> 3<br> 6
    10·1 answer
  • Add 8.563 and 4.8292. then times the answer by 9.183 divide it 2 times by 1.192. Add to the answer with this number after your f
    14·2 answers
  • a buret is a tool designed to transfer precise amounts of liquid .A buret initially contains 70.00 millimeters of a solution and
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!