The answer is 13.57
First 25/7 which is 3.57
Second add 10
Answer:
Step-by-step explanation:
Given sin²∅ + sin∅ = 1, we are to find the value of sin²∅ + sin⁴∅. ... 2
From sin²∅ + sin∅. = 1; sin²∅ = 1 - sin∅. ... 3
Substitute equation 3 into 1
sin²∅ + sin⁴∅
= sin²∅ + (sin²∅)²
= (1 - sin∅)+( 1 - sin∅)²
open the parenthesis
= 1 - sin∅+ (1-2sin∅+ sin²∅)
= 1 - sin∅+ 1-2sin∅+ sin²∅
= 1+1-sin∅-2sin∅+sin²∅
= 2 - 3sin∅+sin²∅
Since sin²∅ = 1 - sin∅, the resulting equation becomes;
= 2 - 3sin∅+(1 - sin∅)
= 2 - 3sin∅+1-sin∅
= 3-4sin∅
I believed there is a typo error in the choices. Below I assume that the correct choices:
<span>A. 9 (3+4)
</span>B. 9 (4+5)
C. 7(4+5)
D. 7(3+6)
The answer is letter A which is 9 (3+4) the greatest common denominator of 27 and 36 is 9. The factor of 27 is 9 and 3 while for 36 is 9 and 4. To check the answer you need to solve 9 (3+4) which is 63 while 27 + 36 is also 63.
Answer:
The explanation is given below with the diagram.
Step-by-step explanation:
Given:
Δ ABC is an Isosceles triangle with base AB.
D is the midpoint of AB
∴ AD = BD
To Prove:

Proof:
Isosceles triangle property:
If Δ ABC is an Isosceles triangle with base AB, then the two sides are congruent and the base angles are congruent.



Answer:
a : b : c = 12 : 10 : 15
Step-by-step explanation:
Given that: b =
of c
i.e b =
............... 1
2c = 5b
So that;
c =
.................... 2
Also,
4a = 3c
a =
................ 3
⇒ a =
× (
)
a =
................. 4
15b = 8a
b =
................. 5
Comparing the derived equations:
From equations 2 and 3,
a:c =
:
= 4:5
From equations 1 and 2,
b:c =
:
= 2:3
But a common value of b = 15, gives;
a : c = 12 : 15 and b : c = 10 : 15
Thus, a : b : c = 12 : 10 : 15