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3 years ago

7

Mathematics

1 answer:

kupik [55]3 years ago

3 0

Answer:

Step-by-step explanation:

Make a ratio equation:

12 : 4.8 = 16 : x

$\frac{12}{4.8} = \frac{16}{x}$

Cross multiply:

12x = 76.8

x = 6.4

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borishaifa [10]

Answer:

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3 years ago

Which of the following numbers is not between -2.6 and 1.3 on the number line?

Naya [18.7K]

Answer:

1.4

Step-by-step explanation:

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3 years ago

Please I need this before 12pm

luda_lava [24]

Answer:

The required formula is:

$\ a_{n}=a_{1}+(n-1)d$

Step-by-step explanation:

The total number of squares of the the first term = 4

The total number of squares of the the second term = 7

The total number of squares of the the third term = 10

so,

$a_1=4$

$a_2=7$

$a_3=10$

Finding the common difference d

$d=a_3-a_2=10-7=3$

$d=a_2-a_1=7-4=3$

As the common difference 'd' is same, it means the sequence is in arithmetic.

If the initial term of an arithmetic progression is $a_{1}$ and the common difference of successive members is d, then the nth term of the sequence $(a_n)$ is given by: