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Airida [17]
3 years ago
15

Need help with #5 please

Mathematics
1 answer:
Elis [28]3 years ago
3 0
B. is the only one we know for sure. We know that when we put in -2 we get exactly one answer or output. 
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62%
Svetlanka [38]

Answer:

(a) Sequence: -1, 1, 3

(b) nth term: T_n = 4+ 5n

Step-by-step explanation:

Solving (a)

Given

T_n = 2n - 3

The first 3 terms.

When n = 1

T_1 = 2*1 - 3

T_1 = 2 - 3

T_1  = -1

When n = 2

T_2 = 2*2 - 3

T_2 = 4 - 3

T_2 = 1

When n = 3

T_3 = 3*2 - 3

T_3 = 6 - 3

T_3= 3

So, the first three terms are:

Sequence: -1, 1, 3

Solving (b)

Given

Sequence: 9,14,19,24

Required

The nth term

The sequence is arithmetic.

So, first calculate the common difference (d)

d = 14 - 9

d = 5

The nth term is then calculated as:

T_n = a + (n - 1) * d

Where

a =First\ term

So:

a = 9 and d = 5

T_n = 9 + (n - 1) * 5

T_n = 9 + 5n - 5

Collect like terms

T_n = 9 - 5+ 5n

T_n = 4+ 5n

6 0
3 years ago
The model shows the expression 21 + 9.
kari74 [83]

Answer:

a

Step-by-step explanation:

3 0
3 years ago
Sonya has a collection of gold and silver coins.
faltersainse [42]

Answer:

10.5

Step-by-step explanation:

65% of 70 is 45.5

So gold is 45.5 and silver is 54.5

so but45.5 + 54.5 = 100% but divide by 2

which is 50% but now we find 10% and 5%

10% = 7

5% = 3.5

now add 7 and 3.5 together

7+3.5 = 10.5

3 0
3 years ago
Solve for x. Each figure is a rhombus.
alisha [4.7K]

Answer:

you f yourelf

Step-by-step explanation:

hihhihihih

7 0
3 years ago
What are some of the rising action events that lead to the climax in Ares god of war?
marshall27 [118]

Answer:

god of War. Symbol: Dog, wild boar, vulture. Murderous, bloodstained, the incarnate curse of mortals; and, strangely, a coward,

Step-by-step explanation:

6 0
3 years ago
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