Answer:
Step-by-step explanation:
Use trig identities:
1
+
tan
2
x
=
1
cos
2
x
=
sec
2
x
(
1
−
tan
x
)
=
1
+
tan
2
x
−
2
tan
x
=
sec
2
x
−
2
tan
x
Answer:
No
Step-by-step explanation:
-2/5 is not equal to 2/5 because it is negative and 2/5 is positive. This actually means that -2/5 is the opposite of 2/5.
I'd say increasing each side by 5 increases the volume by a factor of 125 because 5*5*5 = 125.
Example:
A 4*5*6 prism has a volume of 120
Increasing each side by a factor of five
(20*25*30) = 15,000
15,000 / 120 = 125
Answer:
4sticks of gum = 1$
Step-by-step explanation:
hope it helps~
Answer:
The length of CD is 4 units
Step-by-step explanation:
Given the triangle ABC and if BC = 6 units and AD = 5 units
we have to find the length of DC.
In ΔABC and ΔBDC
∠ABC=∠BDC (each 90°)
BC=BC (common)
∠C=∠C (Common)
By ASA rule, ΔABC≈ΔBDC
Therefore their corresponding sides are in proportion
Let CD=x units
x=4, -9
Distance can't be negative therefore
The length of CD is 4 units