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Nana76 [90]
3 years ago
12

What are the solutions of the equation (2x + 3)2 + 8(2x + 3) + 11 = 0? Use u substitution and the quadratic formula to

Mathematics
2 answers:
Vesnalui [34]3 years ago
7 0

Answer:

b

Step-by-step explanation:

Assoli18 [71]3 years ago
5 0

Answer:

x=  −41 /20

Step-by-step explanation:

(2x+3)(2)+8(2x+3)+11=0

(4x+16x)+(6+24+11)=0(Combine Like Terms)

20x+41=0

20x+41=0

Step 2: Subtract 41 from both sides.

20x+41−41=0−41

20x=−41

Step 3: Divide both sides by 20.

20x /20  =  −41 /20

x= −41 /20

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Katrina drinks .5 gallons of water per day which expression shows how to find the number of cups of water she drinks in a week
Sav [38]

Answer:

8w = 3.5gal

Step-by-step explanation:

1 gal = 16c

0.5gal = 8c

W = 7

8w = 3.5gal

8 0
3 years ago
If oscar the ostrich travels 76 miles in 2 hours on land how fast does he travel
Vikentia [17]
I think the answer is 38 miles I hope this helped!
3 0
3 years ago
Help and explain
krok68 [10]

Answer:

The surface area of the composite figure is 1108 square inches.

Step-by-step explanation:

The surface area of the composite figure (A_{T}) is equal to the sum of external faces of the rectangular and triangular prisms, all measured in square inches:

A_{T} = 20\,in \times 12\,in + 2\times 5\,in \times 12\,in + 2\times 20\,in \times 5\,in  + 2\times 20\,in \times 11\,in + 2\times \frac{1}{2}\times 12\,in \times 9\,in

A_{T} = 1108\,in^{2}

The surface area of the composite figure is 1108 square inches.

5 0
3 years ago
Which statement is true about the equation fraction 3 over 4z = fraction 1 over 4z − 3 + 5?
SashulF [63]

Answer:

It has two solutions.

Step-by-step explanation:

Let as consider the given options are  

It has no solution.

It has one solution.

It has two solutions.

It has infinitely many solutions.

The given equation is

\dfrac{3}{4z}=\dfrac{1}{4z-3}+5

Multiply both sides by 4z(4z-3).

3(4z-3)=4z+5(4z(4z-3))

12x-9=4z+80z^2-60z

0=-12x+9+80z^2-56z

0=80z^2-68z+9

It is a quadratic equation.

Therefore, it has two solutions.

6 0
3 years ago
True or false. To solve the equation 5x=20 you can use the multiplication property of Equality. Explain your reasoning
yulyashka [42]
False. you divide the 5 from its self and also divide the 20 by 5 and you get x=4

5 0
3 years ago
Read 2 more answers
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