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d1i1m1o1n [39]
3 years ago
12

A gallon of water weighs 8 1/3 pounds. how much does 7 gallons weigh

Mathematics
2 answers:
Darya [45]3 years ago
5 0
7 gallons of water =58.31 Pounds
snow_lady [41]3 years ago
4 0
Here we go! In order to find the answer, you simply multiply the weight of one gallon times the amount of desired gallons. So:

[8 1/3 x 7] ≈ 58.3

7 Gallons weigh approximately 58.3 pounds.
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F(x)=9 x^{3} +2x^2-5x+4 and g(x)=5x^3-7x+4. What is f(x)-g(x)? Show all of your steps and write your finial answer in factored f
olasank [31]

Answer:

{ -0.5 - √2,  0,  -.5 + √2 }

Step-by-step explanation:

Let's rewrite these two functions in a vertical column:

 f(x)=9 x^{3} +2x^2-5x+4

-g(x)=5x^3-7x+4

Now combine (through subtraction) like terms, in order of descending powers of x:

f(x) - g(x) = 4x^ 3 + 2x^2 + 2x

Let's do some preliminary factoring here.  Factor 2x out of each term, obtaining

f(x) - g(x) = 2x(2x^2 + x + 1)

First setting 2x = 0, we find that x = 0 is one solution.

Applying the quadratic formula to 2x^2 + x + 1, we see that a = 2, b = 1 and c = 1.  Then the two roots of this quadratic are:

      -1 plus or minus √(1^2 - 4(2)(1) )        -1 ± √(8)

x = ----------------------------------------------- = ---------------

                         2(1)                                         2

This simplifies to:

      -1 plus or minus √(1^2 - 4(2)(1) )        -1 ± 2√(2)

x = ----------------------------------------------- = ---------------

                         2(1)                                         2

Thus, the roots of f(x) - g(x) are { -0.5 - √2,  0,  -.5 + √2 }

7 0
3 years ago
N/-3 - 2 = 8 n=___ help
lys-0071 [83]

Answer:

-30

Step-by-step explanation:

\frac{N}{-3} -2 =8 ( Add 2 on both sides)

\frac{N}{-3} = 10 ( Multiply by -3 on both sides)

N = -30

<u>Verify:</u>

<u />\frac{-30}{-3} =10 (Correct<u>)</u>

7 0
3 years ago
Read 2 more answers
25/75 +25/125 write in the lowest terms
SpyIntel [72]
To exact form:

8/15

To decimal form:

0.53¬ repeating.

7 0
3 years ago
Read 2 more answers
Which integers are closest to 41
Jobisdone [24]

Answer:

the answer is 40

Step-by-step explanation:

because when you estimate 1 it will give you zero for example from 1234=0 56789 =1 so 1=to zero so the answer is 40

7 0
3 years ago
1. Perry ran 30 miles more than DeShawn last month. Perry ran 46 miles. Write and solve an ADDITION equation to represent how ma
a_sh-v [17]

Answer:

30+46=76

Step-by-step explanation:

so you want to draw out a model and write the two numbers and add them.

3 0
3 years ago
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