Answer:
1. y = 12
x = 7.9
2. AB = 5
AC = 5√3
Step-by-step explanation:
1. If you call the straight up line of both triangles is z, then
(9 + 7)^2 = y^2 + z^2
=> z^2 = 256 - y^2
x^2 + 7^2 = z^2
=> z^2 = x^2 + 49
so 256 - y^2 = x^2 + 49
x^2 = 207 - y^2
for the left smaller triangle: 9^2 + x^2 = y^2
y^2 = x^2 + 81
Substitute:
y^2 = (207 - y^2) + 81
2y^2 = 288
y^2 = 144
y = 12
x^2 = 207 - y^2 = 207 - 144 = 63
x = 7.9
2. Sin(30) = AB/BC
=> AB = BC x sin(30) = 10 x 0.5 = 5
Cos(30) = AC/BC
=> AC = BC x cos(30) = 10 x √3/2 = 5√3
D.
The unary postfix decrement operator, when used in an expression,
decrements the value of its operand but has the old value of the
operand.
Answer:
X= 10m
Step-by-step explanation:
Assume that x is the length
(24.5/100)*x = 2.45 m (2m 45cm = 2.45m)
x = (2.45 * 100)/24.5
x = 10m
(hope it will help you can I pls have brainlist (crown) ☺️)
Answer: -10w-20
Step-by-step explanation:
Because the number is in front of the bracket you have to times everything inside the bracket by the number on the outside.
5x-2w= -10w (you would basically do 5x-2 which is -10 then put the w on the end of it).
5x-4= -20
Then put it together so -10w-20
Answer:
<h2>its 3 because when u look on the graph it shows it </h2>
Step-by-step explanation: