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Arisa [49]
2 years ago
12

The weight of a bass varies jointly as its girth and the square of its length (Girth is the distance around the body of the fish

.) A prize-winning bass weighed in at 21.8 lb and
measured 33 in long with a 19-in girth. How much to the nearest tenth of a pound) would a bass 34 in long with a 21-in girth weigh?
The bass would weigh approximately
(Do not round until the final answer. Then round to the nearest tenth as needed.)
Mathematics
1 answer:
earnstyle [38]2 years ago
6 0

The new girth is 22 inches; the reference girth is 20 inches. The weight is proportional to the girth, so the reference weight will get multiplied by 22/20 = 11/10.

Step-by-step explanation:

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Find the x-intercept of the parabola of with vertex (1,20) and the y-intercept (0,16). write your answer in this form: (x1,y1),(
svetoff [14.1K]
I assume that the parabola in this particular problem is one whose axis of symmetry is parallel to the y axis. The formula we're going to use in this case is (x-h)2=4p(y-k). We know variables h and k from the vertex (1,20) but p is not given. However, we can solve for p by substituting values x and y in the formula with the y-intercept:

(0-1)^2=4p(16-20)

Solving for p, p=-1/16.

Going back to the formula, we can finally solve for the x-intercepts. Simply fill in variables p, h and k then set y to zero:

(x-1)^2=4(-1/16)(0-20)
(x-1)^2=5
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x=(+-)sqrt(5)+1

Here, we have two values of x

x=sqrt(5)+1 and
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5 0
3 years ago
What is the value of x
il63 [147K]

the 2 angles are congruent so...

x+40=3x    set the 2 equations equal to each other

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20=x     divide by 2

x=20 is the final answer

Have a blessed day!


5 0
3 years ago
Read 2 more answers
What is the sum of the first 9 terms of 7+21+63+...
attashe74 [19]

Answer:

Step-by-step explanation:

7

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7 0
3 years ago
2x^2+9x+6=0 quadtratic equation
Studentka2010 [4]

Hello from MrBillDoesMath!

Answer:

x = ( -9 + sqrt(33) ) /4

and

x = ( -9 - sqrt(33) ) /4

Discussion:

Using the quadratic formula with a = 2, b = 9 and c = 6 gives

x = ( -b +\- sqrt(b^2-4ac) )/2a

x = ( -9 +\- sqrt(9^2 - 4*2*6)) / (2*2)   =>

x = ( -9 +\- sqrt (81- 48)) / 4                 =>

x = ( -9 +\- sqrt(33) ) /4

Thank you,

MrB

5 0
3 years ago
a student spends the same amount each week for bus fare. In 5 weeks, he spends $115. Write an equation for his relationship. Let
dem82 [27]

Answer:

f(x) = ($23/week)(x)

Step-by-step explanation:

Hello!

Let's determine the unit rate.  I'd suggest finding the cost per week, rather than the weeks covered by a certain amount of money.

Then:

$115

-------- = $23 per week

Then the amount spent as a function of the # of weeks would be:

f(x) = ($23/week)(x)

5 wk

4 0
3 years ago
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