Answer:
x=45
Step-by-step explanation:
2x+45+x=180 since it is on a straight line
3x+45=180
3x=135
x= 45
Answer:
First Blank: 5
Second Blank: 5
Third Blank: -1
Fourth Blank: -1
Fifth Blank: 3
Step-by-step explanation:
10x+15y=15
-10x+2y=-32
__________
17y=-17
__ ___
17 17
y=-1
2x+3(-1)=3
2x-3=3
+3 +3
________
2x=6
__ __
2 2
x=3
The perimeter of inside of the track is 536.44m
<h3>Perimeter of a circle and rectangle</h3>
The perimeter of a circle is also known as the circumference of the circle. The formula for calculating the circumference is expressed as:
C = 2πr
where
r is the radius
From the given diagram
r = 46/2 = 23m
C = 2(3.14)(23)
C = 144.44m
Find the perimeter of the rectangle
P = 2(l+w)
p = 2(46+150)
P = 2(196)
P =392m
The perimeter of the inside track = 144.44 + 392
The perimeter of the inside track = 536.44m
Hence the perimeter of inside of the track is 536.44m
Learn more on perimeter of composite shape here: brainly.com/question/16247505
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Answer:
A. 4.2
Step-by-step explanation:
Answer:
see explanation
Step-by-step explanation:
Evaluate the polynomial at x = 1 and x = 2
x = 1 : 1³ + 1 - 3 = 1 + 1 - 3 = - 1
x = 2 : 2³ + 2 - 3 = 8 + 2 - 3 = 7
Then ( 1, - 1 ) → (2, 7 )
Shows the polynomial goes from y = - 1 to y = + 7
The change in sign indicates the graph crosses the x- axis between 1 and 2
Thus indicating a solution between x = 1 and x = 2
