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MAVERICK [17]
3 years ago
7

Help me plz this is my first doing slopes

Mathematics
1 answer:
Andrews [41]3 years ago
5 0
The answer to this has to be -1/2
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What is the approximate circumference of a circular garden with a radius of 20 ft?
ruslelena [56]

Answer:If you wish to know the equation for finding the circumference, it's quite simple actually. the equation is: 2πr. it's best to write down important equation if you cant remember them very well.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A rectangle is constructed with its base on the​ x-axis and two of its vertices on the parabola yequals25minusxsquared. What are
Karolina [17]

Answer:

The answer is "\bold{\frac{32}{3}}\\"

Step-by-step explanation:

The rectangle should also be symmetrical to it because of the symmetry to the y-axis  The pole of the y-axis.  Its lower two vertices are (-x,0). it means that  

and (-x,0), and (x,0). Therefore the base measurement of the rectangle is 2x. The top vertices on the parabola are as follows:  

The calculation of the height of the rectangle also is clearly 16-x^2, (-x,16,-x^2) and (x,16,-x^2).  

The area of the rectangle:

A(x)=(2x)(16-x^2)\\\\A(x)=32x-2x^3

The local extremes of this function are where the first derivative is 0:

A'(x)=32-6x^2\\\\32-6x^2=0\\\\x= \pm\sqrt{\frac{32}{6}}\\\\x= \pm\frac{4\sqrt{3}}{3}\\\\

Simply ignore the negative root because we need a positive length calculation

It wants a maximum, this we want to see if the second derivative's profit at the end is negative.

A''\frac{4\sqrt{3}}{3} = -12\frac{4\sqrt{3}}{3}

8 0
3 years ago
Below are the steps to solve an equation: Step 1: |x − 5| + 2 = 5 Step 2: |x − 5| = 5 − 2 Step 3: |x − 5| = 3 Which of the follo
mamaluj [8]
The next correct step would be to open the absolute value signs. To do so, the equation would need to be put equal to two values wich both need to be solved to find the correct answers.

Equation 1: x-5=3
Equation 2: x-5=-3

The answers would be x=8 and x=2.
7 0
4 years ago
Read 2 more answers
What number is 9.5% of 20?
mars1129 [50]
1.9


9.5% = 0.095

0.095* 20 = 1.9
7 0
3 years ago
For the following right triangle, find the side length x. Round your answer to the nearest hundredth.
jarptica [38.1K]

Answer:

xx=\sqrt{19^2-10^2}=\sqrt{361-100}  =\sqrt{261} \approx16.15549\\\approx16.16

Step-by-step explanation:

x=\sqrt{19^2-10^2}=\sqrt{361-100}  =\sqrt{261} \approx16.15549\\\approx16.16

4 0
3 years ago
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