Answer:
x=70°
Step-by-step explanation:
Three triangles can be made out of that shape so total int. angles = 3 x 180°=540°.
so 40 + 110 + 4x + 40 + x = 540°
190+5x=540°
5x=350°
x=350/5=70°
The simplified value of 12.4 x (negative 6.3) is -78.12
<h3>How to simplify the expression?</h3>
The expression is given as:
12.4 x (negative 6.3)
Rewrite properly as:
12.4 x (-6.3)
Evaluate the product using a calculator
-78.12
Hence, the simplified value of 12.4 x (negative 6.3) is -78.12
Read more about expressions at:
brainly.com/question/723406
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Discriminant = b^2 - 4ac; where a = 1, b = 9 and c = 14
d = (9)^2 - 4(1)(14)
d = 81 - 56
d = 25
the discriminant is greater than zero, so there are two real roots
Answer:
14
Step-by-step explanation:
Use Pemdas
Solve in parentheses:
17 - 12 = 5
Multiplication:
2 * 5 = 10
Addition:
10 + 4 = 14
Answer is 14
-3 u +2 v
where
u=< -6,-2>
v=< -2, 3>
-3 u +2 v
-3 * <-6, -2> + 2*<-2, 3>
<-3 *-6 , -3 *-2> + < 2*-2 , 2*3>
<18, 6> + < -4, 6>
<18 + (-4) , 6 +6>
<18-4, 6+6>
<14,12>