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posledela
1 year ago
6

I hate math so I really need help

Mathematics
1 answer:
vivado [14]1 year ago
7 0

Answer:

b. 4.5 cm

a. 42 mm is the answer

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Georgia [21]

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Now plot those points in graph and find intersection hope it helps you.......

8 0
2 years ago
What is the value of x in the equation in ( x + 6)- in (2x-1) =1
ki77a [65]

Answer:

x= -5

Step-by-step explanation:

5 0
3 years ago
Explain why the function is discontinuous at the given number
zaharov [31]

Calculator can help you

6 0
3 years ago
Find the length and width of a rectangle that has the given area and a minimum perimeter. Area: 162 square feet
Gnom [1K]

Answer:

The width and length of rectangle is 12.728 m

Step-by-step explanation:

Let the length of the rectangle = L

let the width of the rectangle = W

The subjective function is given by;

F(p) = 2(L + W)

F = 2L + 2W

Area of the rectangle is given by;

A = LW

LW = 162 ft²

L = 162 / W

Substitute in the value of L into subjective function;

f = 2l + 2w\\\\f = 2(\frac{162}{w} )+2w\\\\f = \frac{324}{w} + 2w\\\\\frac{df}{dw} = \frac{-324}{w^2} +2\\\\

Take the second derivative of the function, to check if it will given a minimum perimeter

\frac{d^2f}{dw^2}= \frac{648}{w^3} \\\\Thus, \frac{d^2f}{dw^2}>0, \ since,\frac{648}{w^3} >0 \ (minimum \ function \ verified)

Determine the critical points of the first derivative;

df/dw = 0

\frac{-324}{w^2} +2 = 0\\\\-324 + 2w^2=0\\\\2w^2 = 324\\\\w^2 = \frac{324}{2} \\\\w^2 = 162\\\\w= \sqrt{162}\\\\w = 12.728 \ m

L = 162 / 12.728

L = 12.728 m

Therefore, the width and length of rectangle is 12.728 m

3 0
2 years ago
Is 8 a solution to 3 over 4 x = 6
SSSSS [86.1K]

Answer:

Yes, 8 is a solution

Step-by-step explanation:

<u>Step 1:  Check if solution</u>

<u />\frac{3}{4} x = 6

\frac{3}{4} (8) = 6

\frac{24}{4} = 6

6=6

Answer:  Yes, 8 is a solution

6 0
3 years ago
Read 2 more answers
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