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2 years ago

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Https://d2y2khognlqryx.cloudfront.net/calms_media/media/8376000_8376500/8376375/2/ce6e095ec744ebed7bcb9c367552674e67dc8b1e/MTH_A

B_05_08_12_PVR_IN_01_OYO.pdf
I need help.

1 answer:

lana [24]2 years ago

7 0

Answer:

qwertyuio

Step-by-step explanation:

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The equation we are given (-at² + bt + c) is a parabola. How do we know this?

Scrat [10]

It's a polynomial of degree 2. Every polynomial of degree 2 is a parabola

4 0

2 years ago

A sequence is constructed according to the following rule: its first term is 7, and each next term is one more than the sum of t

Iteru [2.4K]

Answer:

5

Step-by-step explanation:

According to the described rule, we have

$a_1=7\\ \\a_1^2=7^2=49\Rightarrow a_2=4+9+1=14\\ \\a_2^2=14^2=196\Rightarrow a_3=1+9+6+1=17\\ \\a_3^2=17^2=289\Rightarrow a_4=2+8+9+1=20\\ \\a_4^2=20^2=400\Rightarrow a_5=4+0+0+1=5\\ \\a_5^2=5^2=25\Rightarrow a_6=2+5+1=8\\ \\a_6^2=8^2=64\Rightarrow a_7=6+4+1=11\\ \\a_7^2=11^2=121\Rightarrow a_8=1+2+1+1=5\\ \\\text{and so on...}$

We can see the pattern

$a_5=a_8=a_{11}=a_{14}=...=5\\ \\a_6=a_9=a_{12}=a_{15}=...=8\\ \\a_7=a_{10}=a_{13}=a_{16}=...=11$

In other words, for all $k\ge 2$

$a_{3k-1}=5\\ \\a_{3k}=8\\ \\a_{3k+1}=11$

Now,

$a_{2018}=a_{3\cdot 673-1}=5$

7 0

3 years ago

Will give max points!!!!!! HELPPPPPP PLEASEEEEEE

Alexandra [31]

Ummmm uh.....fid the perimiter and diamiter and multiply them...

8 0

3 years ago

Read 2 more answers

last year my math book cost $126,and i was told the price would increase 9% each year. If the cost continues to increase at this

mrs_skeptik [129]

2,268 because u have to add the 2 years with 126

3 0

3 years ago

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After every eighth visit to a restaurant you receive a free beverage. After every tenth visit you receive a free appetizer. If y

Kaylis [27]

Answer:

40th and 80th visit

the first visit where you receive both is the 40th

Step-by-step explanation:

personally, I believe that the simplest way to solve this is use an excel spreadsheet to see which visits would include both a free beverage and a free appetizer:

both rewards would happen only twice, at the 40th and 80th visit.

you can also calculate it mathematically since multiples of 8 and 10 do not repeat themselves very much, only when 8 is multiplied by 5 and 10.

4 0

2 years ago

Read 2 more answers