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3 years ago

Write an explicit formula for an the nth term of the sequence 7,3, 1,....

Mathematics

2 answers:

seropon [69]3 years ago

8 0

Answer:

nth term = 7+(n-1)4

Step-by-step explanation:

mestny [16]3 years ago

3 0

Answer:

Step-by-step explanation:

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marlee spins a spinner and rolls 1-6 # cube. the spinner has 5 equal parts # 1-5 . what is the probability she will spin an even

forsale [732]

The events are independant (i.e. what she rolls on the cube has no impact on how the spinner works). The probability of two independant events is given by:

$P_t = P_{cube} \times P_{spin}$

For the cube, 1/2 the numbers meet our requitment of being even, so:
$P_{cube} = \frac{Desired}{Total} = \frac{even}{total} = \frac{3}{6} =\frac{1}{2}$

For the spinner, there are 3 odds out of 5 (1, 3 & 5) so:
$P_{spin} =\frac{Desired}{Total} = \frac{odd}{total} = \frac{3}{5}$

and then:
$P_T = P_{cube} \times P_{spin}$
$P_T =\frac{1}{2} \times \frac{3}{5}$
$P_T =\frac{3}{10}$

6 0

4 years ago

3 times a number x, subtracted from 18 is less than -90

Shalnov [3]

Answer:

x > -24

Step-by-step explanation:

18 - 3x < 90

Subtract 18 from both sides.

-3x < 72

Divide both sides by -3. (When diving by a negative, flip the sign.)

x > -24

5 0

4 years ago

What is 3/18 Round to the nearest half.

musickatia [10]

9/18 because that is equal to 1/2

5 0

3 years ago

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34.25 compared to 34.735

rodikova [14]

Answer:

0.485

Step-by-step explanation:

Just subtract 34.735 from 34.25

5 0

4 years ago

Simplifying fractions (picture provided)

stich3 [128]

Answer:

2 1/4

Step-by-step explanation:

- 5 1/4 - ( - 7 1/2)

Subtracting a negative is like adding

- 5 1/4 + 7 1/2

Get a common denominator of 4

-5 1/4 + 7 2/4

Subtract

7 2/4 - 5 1/4

2 1/4

6 0

3 years ago

Read 2 more answers