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Schach [20]
3 years ago
15

Choose the correct rule for the sequence: 2, 4, 8, 16,... *

Mathematics
1 answer:
lina2011 [118]3 years ago
6 0

Answer:

x2

1 x (N x 2)

2 x (1 x 2) = 4

2 x (4 x 2) = 16

Step-by-step explanation:

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I need help ASAP................................
Anestetic [448]

Answer:

x = -1

Step-by-step explanation:

-2(x - 5) = 12

-2x + 10 = 12 (this is the mistake, -2 times -5 = + 10)

-2x = 12 - 10

-2x = 2

x = 2/(-2)

x = -1

8 0
2 years ago
Read 2 more answers
What are the solutions for x to the equation (x-3)(x+8)=0
hichkok12 [17]

For this case we have a factored expression, of a second degree equation:

((x-3) (x + 8) = 0

To find the solutions:

  • x-3 = 0

we add 3 to both sides of the equation:

x=3

  • x+8=0

We subtract 8 on both sides of the equation:

x = -8

Thus, the solutions of the equation are:

x_ {1} = 3\\x_ {2} = - 8

Answer:

x_ {1} = 3\\x_ {2} = - 8

7 0
3 years ago
A regression was run to determine whether there is a relationship between hours of TV watched per day (x) and number of sit-ups
Leto [7]

Answer:

19

Step-by-step explanation:

From the question we have been given this data

y=ax+b

a=−1.077

b=30.98

r2=0.744769

r=−0.863

Where

X = number of situps

Y = number of hours spent watching tv

We have x = 11

Inputting this into the formula we have

Y = (-1.077)(11) + 30.98

Y = −11.847 + 30.98

Y = 19.133

Which is approximately 19

Therefore we conclude that a person who watches TV for 11 hours can do 19 situps.

3 0
3 years ago
What is the similarity ratio of a cube with volume 216 m³ to a cube with volume 2744 m³
maks197457 [2]

Answer:

A. 3:7

Step-by-step explanation:

The volume of the smaller cube is 216 m³.

The volume of the larger cube is 2744 m³

Let the  similarity ratio be l:L

The volume of these two cubes are in the ratio:

l^3:L^3=216:2744

This implies that:

(\frac{l}{L})^3 =\frac{216}{2744}

We take the cube root of both sides to obtain:

\frac{l}{L} =\sqrt[3]{\frac{216}{2744}}

\frac{l}{L} =\frac{6}{14}

This simplifies to:

\frac{l}{L} =\frac{3}{7}

Therefore the ratio is 3:7

6 0
3 years ago
1 Tasha's bedroom is shaped like a square. The room has an area of 182 ft2.
jeka57 [31]
Square root of 182 is equal to the length of each side of the bedroom
7 0
3 years ago
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