Step-by-step explanation:
4 + y + (-2)
= 4 + y - 2
= 4 - 2 + y
= 2 + y
<h2>
Answer:</h2>
Crystal graphed ΔABC using the following points:
On the coordinate plane, consider the point 
. To rotate this point by 90° around the origin in counterclockwise direction, you can always swap the x- and y-coordinates and then multiply the new x-coordinate by -1. In a mathematical language this is as follows:
<h3>
Therefore, for ΔA′B′C′ we have:</h3>
Since ΔA′B′C′ and ΔT′U′V′ ended up having exactly the same points, then:
On the other hand, in clockwise direction we have the following rule:
<h3>
Therefore. we must find to get ΔTUV here, so:</h3>
Answer:
221°
Step-by-step explanation:
Using sine rule
a/sinA = b/sinB = c/sinC
A= 36°
B= 37°
C = 107°
It takes 90 seconds to go from point A to point B. To find a, we will use
a/sinA = c/sinC
a/sin36°= 360/sin 107°
a(sin 107°) = 360sin36°
a = 360sin 36° / sin 107°
a = 360(0.5878) / 0.9563
a = 211.608/0.9563
a = 221.27°
a = 221°
It should be noted that the value of y for the expression for -15y -40 is y = 2.67.
<h3>How to illustrate the information?</h3>
It should be noted that an expression in mathematics simply means the sentence with a minimum of two variables or numbers and at least a mathematical operation.
It should be noted that based on the information, we want to solve the expression which is illustrated as:
-15y -40
Equate the expression to 0
-15y - 40 = 0
-15y = 40
Divide through by -15
-15y/-15 = 40/15
y = 2.67
Therefore, it should be noted that the value of y for the expression for -15y -40 is y = 2.67.
Learn more about expressions on;
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Solve the expression for -15y -40
Answer:
She will have 12 sections per fabric and 36 sections in all
Step-by-step explanation:
Betty buy 3 fabrics of 30 ft²
If she cut each to 2/5 of 1 ft²
The she will have
30 × 2/5
= 6 × 2
= 12
She will have 12 for each fabric and for the 3 fabrics, she will have
12 × 3 = 36
