Answer:
-2?
Step-by-step explanation:
use y2-y1 over x2-x1 to find the answer. So you would do -2--5/3 over 4--2. The two negitives turn into a positive. SO it is now -2+5/3 over 4+2. -2+5/3= -1/3 over 4+2=6 it is now -1/3/6 which equals -2. So I think the answer is -2.<u> I do not know if you should trust me on this but I tried. </u>
If the perimeter of a triangle is 19 cm. The lengths of 3 sides is: a = 8, b = 7, c = 4.
<h3>Parimeter</h3>
Let a = longest
Let b= shortest
Let c= third side
a = 2c
a = (b+ c) - 3
a + 3 = b + c
Using three variables to solve the expression for perimeter
Perimeter= 19 cm
a+ b + c = 19
a + (a + 3) = 19
2a + 3 = 19
2a= 16
Divide both side by 2a
a=16/2
a = 8
a = 2c
8 = 2c
c=8/2
c = 4
a + b + c= 19
8 + b + 4 = 19
12 + b = 19
b=19-12
b = 7
Hence,
a = 8, b = 7, c = 4
Therefore If the perimeter of a triangle is 19 cm. The lengths of 3 sides is: a = 8, b = 7, c = 4.
The complete question is:
Perimeter of triangle is 19cm. If the length of the longest side is twice that of the shortest side and 3 less than the sum of the lengths of the 2 sides find lengths of 3 sides.
Learn more about perimeter here:brainly.com/question/19819849
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Answer:
1,3,5,7,9
Step-by-step explanation:
Odd numbers are 1, 3, 5, 7, 9
Sally will have 15 apples left
The simplification of – 65x + 4.2y + 65x – 2.2y + 5.4 + y – 3y is 5.4
<u>Solution:</u>
Given, expression is – 65x + 4.2y + 65x – 2.2y + 5.4 + y – 3y
We have to solve the above given expression by combining the like terms.
Then, – 65x + 4.2y + 65x – 2.2y + 5.4 + y – 3y
Combining the like terms in above expression we get,
⇒ ( - 65x + 65x ) + ( 4.2y – 2.2y + y – 3y ) + 5.4
⇒ ( 0 ) + ( 2.0y + ( - 2y ) ) + 5.4
⇒ 0 + (2y – 2y) + 5.4
⇒ 0 + 5.4 = 5.4
Hence, the value of the given expression is 5.4
