The answer is -19. i just added the integers
Answer:
B; 15 sides
Step-by-step explanation:
0.3(3 - 0.5)
= 0.3(2.5)
= 0.75
Answer:
-11.55
Step-by-step explanation:
(to get the numbers out of the brackets you have to multiply all the numbers in the brackets to the number that is there, and in this case its 1.5)
1.5x(-2.4)= -3.6
1.5×(-5.3)= -7.95
after that, you add them (because there is a plus sign, not a minus, multiplication sign or a division sign.)
-7.95+ -3.6= -11.55
answer= -11.55
Answer:
∠F = 42° to the nearest degree
Step-by-step explanation:
In this question, we are asked to calculate the value of the angle.
Kindly note that since one of the angles we are dealing with in the triangle is 90°, this means that the triangle is a right-angled triangle
Please check attachment for the diagrammatic representation of the triangle
From the diagram, we can identify that the EF is the hypotenuse and the length FG is the adjacent. Thus , the appropriate trigonometric identity to use is the cosine
mathematically;
Cosine of an angle = length of adjacent/length of hypotenuse
![Cos F = \frac{30}{38}\\Cos F = 0.7895\\F = Cos^{-1} 0.7895\\](https://tex.z-dn.net/?f=Cos%20F%20%3D%20%5Cfrac%7B30%7D%7B38%7D%5C%5CCos%20F%20%3D%20%200.7895%5C%5CF%20%3D%20Cos%5E%7B-1%7D%200.7895%5C%5C)
F = 42.07
∠F = 42° to the nearest degree