Answer:
D. Triangle QRS is an isosceles triangle because QR = RS.
Step-by-step explanation:
Find the length of each side of the triangle using the formula for calculating the distance between two points.
D = √(x2-x1)²+(y2-y1)²
For side RS
R(0,0) and S(5, -3.322)
RS = √(5-0)²+(-3.322-0)²
RS = √25+11.035684
RS = √36.035684
RS = 6.0029
For side RQ
R(0,0) and Q(-3, -5.2)
RQ = √(-3-0)²+(-5.2-0)²
RQ = √9+27.04
RQ = √36.04
RQ = 6.0033
For side QS
Q(-3,-5.2) and S(5, -3.322)
QS = √(5+3)²+(-3.322+5.2)²
QS = √64+3.526884
QS = √67.526884
QS = 8.22
From the calculation it can be seen that RS=QR
Since the two sides f the triangle are equal, hence the triangle is an isosceles triangle. An isosceles triangle is a triangle that has two of its sides equal
Answer: 65 people completed graduate school.
Step-by-step explanation:
25% of 260 is 65.
Answer:
13. 
14. 
15. 
Step-by-step explanation:
Perimeter top one:
5+1+2+3+3+4= 18in
Perimeter bottom one:
6+1+4+3+2+4= 20in
Jaun has to use inverse before using those properties as they does not support subtraction but only addition.
<u>Solution:</u>
Given that , Juan used the expression 16 – 9 – 12 + 22 to find his profit for days 2 and 3.
He rewrote the expression as 16 + (–9) + (–12) + 22
Juan can use the associative and commutative properties to rewrite the expression again.
We have to explain why he had to use the additive inverse before he could use these properties.
Now, Associative property and commutative property true for addition.
i) a + (b + c) = (a + b) + c ---> Associative property of addition
ii) a + b = b + a --> commutative property of addition.
These properties not true for subtraction.
That's the reason Juan used additive inverse before applying these property.
Hence, jaun has to use inverse before using those properties as they does not support subtraction but only addition.
