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uranmaximum [27]
4 years ago
9

Please help!! 20 points

Mathematics
2 answers:
Effectus [21]4 years ago
7 0

A = 2w² + 40w

If the w = width and the length is 40 more than twice the width, we can write the dimensions of the soccer field as follows:  

w for the width and (2w + 40) for the lenth.  We multiply these two together to find the equation above for area

Marianna [84]4 years ago
6 0

If the width is w then the length = 2w + 40, so the area

= w(2w + 40)

= 2w^2 + 40 w


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If -1 < x < 0 which of the following has the smallest value?
Katyanochek1 [597]

Answer: (B) x^3

Explanation:

If you compare the graphs of

  • y = x^2
  • y = x^3
  • y = x^4

all on the interval -1 < x < 0, you'll find that y = x^3 is the smallest when x = -1

Squaring a negative number leads to a positive result, and similarly that happens with x^4 as well. This is because x^4 = (x^2)^2.

Plugging x = -1 into x^3 leads to y = -1 as a result.

6 0
3 years ago
Find the co-ordinates of the point of trisection of the line joining the points A(1,8) and B(4,2).
Licemer1 [7]

<u>coordinates of the point are (2,6) and (3,4)</u>

Answer:

Solution given:

let the given point be A(1,8) and B(4,2).

P and Q are the two points on AB such that

AP=PQ=QB=k

now

comparing AP and PB

AP=k

PB=2k

ratio of AP and PB =\frac{1k}{2k}= ratio 1:2

now

finding p

for this

(m_1,m_2)=(1,2)

For AB

(x_1,y_1)=(1,8)

(x_2,y_2)=(4,2)

now by using division formula

(x,y)=(\frac{m_1x_2+m_2x_1}{m_1+m2},\frac{m_1y_2+m_2y_1}{m_1+m2})

=(\frac{1*4+2*1}{1+2},\frac{1*2+2*8}{1+2})=(2,6)

similarly

Q divides AB

Ratio of AQ and QB =\frac{2k}{1k}= ratio 2:1

(x_1,y_1)=(1,8)

(x_2,y_2)=(4,2)

(m_1,m_2)=(2,1)

by using division formula

(a,b)=(\frac{m_1x_2+m_2x_1}{m_1+m2},\frac{m_1y_2+m_2y_1}{m_1+m2})

=(\frac{2*4+1*1}{2+1},\frac{2*2+1*8}{2+1})=(3,4)

4 0
3 years ago
Are the lines x -2y = -6 And 4y + 4 = 2x perpendicular?
olasank [31]
No, they are parallel.
7 0
3 years ago
Read 2 more answers
Esme plans to flip a fair coin 3 times and record the results of each flip.
MariettaO [177]

Answer:

<h3 /><h3><u>Required</u><u> </u><u>Answer</u><u>:</u><u>-</u></h3>

Sample space=s={HHH,TTT,HTT,THT,HHT,TTH}

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7 0
3 years ago
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Mademuasel [1]

Answer:

Step-by-step explanation:

The answer is A. 16+10+20= 46

8 0
2 years ago
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