Answer:
Step-by-step explanation:
32 - 7(6+12) / 4^2
25 + 18 /4^2
43 / 16
2.6875 when you round it you get 2.7
Step-by-step explanation:
-0.5x >= 4
x <= -8 (divide by -0.5, flip the inequality sign)
Hence the correct number line is the 2nd one.
Answer: 79°
Explanation:
1) Law of cosines:
In a triangle with sides a, b, c whose opposite angles are, respectively, A, B and C, the law of cosines states:
c² = a² + b² - 2 a×b×cos (C)
2) In the triangle of the figure you have
c = 9
C = X
a = 6
b = 8
⇒ 9² = 6² + 8² - 2(6)(8) cos(X)
⇒ 81 = 36 + 64 - 96cos(X)
⇒ 96cos(X) = 36 + 64 - 81 = 19
⇒ cos(X) = 19 / 96
⇒ X = arccos(19/26) = 78.6° ≈ 79°
In triangle PQR, by the law of cosines we have
In triangle PMQ, we have
<u>Since I don't see the graphs</u>:
⇒ I am going to answer by the general format of what you should see
<u>The function has zeros at -3, 4</u>:
⇒ which means that the function must interest the x-axis at x = -3 and
x = 4
Hope that helps!
⇒look at the image I uploaded which shows a possible answer
