Answer:
Step-by-step explanation:
Answer:
(1436.8cm³) let me know if that helps
Step-by-step explanation:
-so if the diameter is a straight line and it's 15 cm
-The formula for the sphere it would be v=4/3πr³
-The radius is going to be r=7cm
-v = 4/3 π (7cm)³
-so you would type in 4/3 x 3.14 x 7 ³ =1,436
- 3.14 or π
- you would round it to the nearest 10th (1436.8cm³)
Do you want us to simplify
This is your answer
√3n+2+ √2n+1/n+1
Answer:4x^2 +28x +49=(2x +7)^2
Step-by-step explanation:
a2±2ab+b2=(a±b)2
In this case
a=2x and b=7 ...
4x2+28x+49=(2x)2+(2⋅
(2x)⋅
7)+72=(2x+7)2
The value of x in the geometric sequence is -3.
Option (A) is correct.
To find the value of x.
<h3>What is geometric progression?</h3>
A progression of numbers with a constant ratio between each number and the one before .A geometric progression is a sequence in which any element after the first is obtained by multiplying the preceding element by a constant called the common ratio which is denoted by r. For example, the sequence 1, 2, 4, 8, 16, 32… is a geometric sequence with a common ratio of r = 2.
Given that:
The geometric sequence are x, 3, -1/3.......
Let x = a be the first term
3 = a*r = x *r , is second term
r is the common ratio,
r =3/x
- 1/3 = ar^2 = x r^2
substitute r, and solve for x:
-1/3 = x*3*3/x*x
cancel out the x term from numerator and denominator we have,
-1/3=9/x
By cross multiplication,
x=-9/3
By simplifies
x=-3
first term is x = -3
So, the value of x in the geometric sequence is -3.
Learn more about geometric progression here:
brainly.com/question/28189673
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