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german
3 years ago
8

What are the first four terms of the sequence given by the formula below? an= -2n + 4

Mathematics
2 answers:
netineya [11]3 years ago
6 0
In order to solve this problem, We need to substitute the first four numbers (1,2,3,4) for n. After this we calculate:
First item:
a1= -2*1 + 4=-2+4=2
Second item:
a2= -2*2 + 4 =-4+4=0
Third item:
a3= -2*3 + 4 =-6+4=-2
Forth item:
a4= -2*4 + 4 =-8+4=-4

So the first 4 items are: 2,0,-2,-4..




lubasha [3.4K]3 years ago
3 0

Answer:

Sequences and Series Online Practice Conexus review:

C

B

A

D

B

C

B

C

C

B

A

D

B

A

A

100%, Hope this helps Y'all:)

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A bakery uses 8 table spoons of honey for every 10 cups of flour to make bread dough some days they bake bigger batches and some
Arada [10]

Answer:

The ratio would be, 4 tablespoons of honey: 5 cups of flour

Step-by-step explanation:

4/5 is the simplified version of 8/10, which is what we were first given

6 0
2 years ago
The population of a town 4 years ago was 50,000
tino4ka555 [31]

Answer:

population will be 79806.

Step-by-step explanation:

Population of a town 4 years ago  was 50,000

Population of town had grown exponentially and present population is 63,124.

So the formula of the population growth will be

A_{n}=A_{o}(r)^{n-1}

Where A_{n} = Final population n = number of years.

           A_{o} = Initial population

           r = rate of increase in population per year.

so  63124 = 50,000 (r)^{4-1}

r^{3}=\frac{63124}{50000}= 1.26428

r=(1.26428)^{\frac{1}{3} }

= 1.0813

Now we have to find the population after 4 years from now.

A_{n} =  63124(1.08)^{4-1}

       =  63124(1.08)^{3}

       = 63124 × 1.264

       = 79806

Therefore, after 4 years from now population will be 79806.

8 0
3 years ago
Nikki just exercised for 180
skelet666 [1.2K]

Answer:

108

Step-by-step explanation:

Not the greatest way, but I divide 180 by five (to get how much each 1/5 equals), which is 36. Then I multiply 36 times 3 (which is how many fifths that were used) and you get 108.

8 0
3 years ago
Victor has some model planes. Last weekend, Victor and his grandfather built four more model planes to add to his collection. No
tamaranim1 [39]

Answer:

x = 42 - 4

x = 38

Step-by-step explanation:

Given that :

Initial number of plane models = x

Number of additional models built = 4

Total number of planes = 42

Total = initial amount + additional amount

42 = x + 4

Make x the subject

42 - 4 = x + 4 - 4

x = 42 - 4

X + 4 = 42

X = 42 - 4

X = 38

5 0
3 years ago
1. Twenty four less than the product of seven and six.
Mrac [35]

Answer:

18 is twenty four less than the product of seven and six.

5 0
2 years ago
Read 2 more answers
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