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3 years ago

What is the third missing term in the series? 15) 1.3, 2.6, 5.2, 10.4,

Mathematics

2 answers:

rodikova [14]3 years ago

8 0

The answer is 20.8 :)

Ne4ueva [31]3 years ago

4 0

Answer: 20.8

The reason is because:

1.3+1.3=2.6

2.6+2.6=5.2

5.2+5.2=10.4

And... 10.4+10.4=20.8

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Can you solve the equation?

Andreas93 [3]

Answer:

x=3 and 9

Step-by-step explanation:

; x-3=0

x=3 (change side change mark)

and

$\frac{2}{3} x - 6 = 0$

$\frac{2}{3} x = 6$

$x = 6 \times \frac{3}{2}$

change side change mark.

So, x=9

If u wanna check the answer you can check by substitution x=3 and 9 in equation.

hope it helps you ☺️

3 0

3 years ago

A cone with radius 2 and height 9 has its radius tripled. How many times greater is the volume of the larger cone than the small

SpyIntel [72]

Answer:

When increasing the radius 3 times the volume increases 9 times and when it is reduced to a third the volume decreases 9 times

Step-by-step explanation:

We have that the formula for the volume of a cone is:

Vc = pi * (r ^ 2) * h

We first calculate the original volume, where the radius is 2 and the height is 9, replacing:

Vc = 3.14 * (2 ^ 2) * 9

Vc = 113.04

Now if the radius is tripled it would be: 2 * 3 = 6, the radius would be 6, replacing:

Vc = 3.14 * (6 ^ 2) * 9

Vc = 1017.36

If we compare:

1017.36 / 113.04 = 9

This means that when the radius is tripled, the volume increases 9 times.

When if re reduces to a third the radius would be: 2/3, replacing:

Vc = 3.14 * ((2/3) ^ 2) * 9

Vc = 12.56

113.04 / 12.56 = 9

Which means that by reducing it to a third the volume becomes 9 times smaller.

6 0

3 years ago

Which one of these answers is the actual one

Arturiano [62]

The answer is: 3 3/8 sq ft so C

3 0

3 years ago

Read 2 more answers

Solve 7 ÷ one half = ___. Question 1 options: 14 15 24 40

Norma-Jean [14]

Answer:

O 14

Step-by-step explanation:

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7 0

2 years ago

Find the surface area of the square pyramid. A) 104 cm2 B) 160 cm2 C) 224 cm2 D) 448 cm2

jeyben [28]

Answer:
B
Step-by-step explanation:

i

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2 years ago