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3 years ago

1.4+u/8=-11.4 solve for U

1 answer:

8 0

$1.4+\dfrac{u}{8}=-11.4\ \ \ \ |\text{subtract 1.4 from both sides}\\\\\dfrac{u}{8}=-12.8\ \ \ \ |\text{multiply both sides by 8}\\\\\boxed{u=-102.4}$

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Tyler has 120 linear feet of fencing to put around his garden. If he uses the fence to border a rectangular garden, what is the

Travka [436]

Answer:

The maximum area is $900\ ft^{2}$

Step-by-step explanation:

Let

x----> the length of rectangle

y---> the width of rectangle

we know that

The perimeter of rectangle is equal to

$P=2(x+y)$

we have

$P=120\ ft$

$120=2(x+y)$

$60=(x+y)$

$y=60-x$ ------> equation A

Remember that

The area of rectangle is equal to

$A=xy$ -----> equation B

substitute equation A in equation B

$A=x(60-x)$

$A=-x^{2} +60x$

This is a vertical parabola open downward

The vertex is a maximum

The y-coordinate of the vertex of the graph is the maximum area of the garden and the x-coordinate is the length for the maximum area

using a graphing tool

The vertex is the point $(30,900)$

see the attached figure

Find the value of y

$y=60-x$ -----> $y=60-30=30\ ft$

The dimensions of the rectangular garden is $30\ ft$ by $30\ ft$

For a maximum area the garden is a square

The maximum area is $900\ ft^{2}$

5 0

3 years ago

16/9 is equal to 2 times which fraction?

xxTIMURxx [149]

Answer:

The answer is 8/9

Hope this helps

6 0

3 years ago

Read 2 more answers

Which expression is equivalent?

chubhunter [2.5K]

It'll be 8 |a^3|.

we don't use modulus on 8 cuz it is obviously positive but we do not know about a^6 when rooted it can be +ve or -ve.

6 0

3 years ago

The ratio of 1 hour to 300 seconds is:<br> (i) 1:12;<br> (i) 12:1; (iii) 1 : 5;<br> (iv) 5:1

DaniilM [7]

Answer:

1:12

Step-by-step explanation:

I hope this helps!

7 0

3 years ago

The equation of the line shown in the graph is y = ?.

Vesna [10]

Equation if the line for the graph is
y = -2x+1

6 0

3 years ago