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masya89 [10]
3 years ago
6

Find the value of X

Mathematics
1 answer:
almond37 [142]3 years ago
7 0

Answer:

100°

Step-by-step explanation:

the lower right angle is 180-149 = 31°

the sum of all three angles in a triangle is 180°.

so the solution is 180-31-49

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Does anyone know the exponent rules
asambeis [7]
Does this help you at all?

3 0
3 years ago
Find the 5th term of the sequence in which T1=8 and Tn=3t n-1
yan [13]
T_n = 3 * T_(n-1)

Long way (always works!)
T_5 = 3*T_4,
T_4 = 3*T_3
T_3 = 3*T_2
T_2 = 3*T_1

T_5 = 3*3*3*3*T_1 = 81*T_1 = 81*8 = 648!

Short way (sometimes it works!)

T_n = 3^(n-1) * T_1 (this case is a geometric series of ratio-=3)
T_5 = 3^4*8 = 648
6 0
2 years ago
What is the difference in volume between a sphere with radius r and a sphere with radius 0.3r?
REY [17]
The volume of the sphere of radius r is:
 V1 = (4/3) * (pi) * (r ^ 3)
 Where,
 r: sphere radius:
 The volume of the sphere of radius 0.3r is:
 V2 = (4/3) * (pi) * ((0.3r) ^ 3)
 Rewriting:
 V2 = (4/3) * (pi) * (0.027 (r) ^ 3)
 V2 = 0.027 (4/3) * (pi) * (r ^ 3)
 V2 = 0.027V1
 The difference is:
 V1-V2 = V1-0.027V1 = V1 (1-0.027)
 V1-V2 = 0.973 * (4/3) * (pi) * (r ^ 3)
 Answer:
 
the difference in volume between a sphere with radius and a sphere with radius 0.3r is:
 
V1-V2 = 0.973 * (4/3) * (pi) * (r ^ 3)
8 0
3 years ago
What is the surface area of the square pyramid? 30 m 18 m ות 36​
gayaneshka [121]

Answer:

the answer is 5100 im pretty sure.

Step-by-step explanation:

yes

4 0
2 years ago
Plz help i am confusion
kari74 [83]

Answer:

NO solution , the -17y at both sides will cancel ,so no variable left

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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