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3 years ago

PLS HELP 15 POINTS 10 MINS LEFT

Mathematics

2 answers:

Mandarinka [93]3 years ago

3 0

The answer is false because you would still have $3 left over

iogann1982 [59]3 years ago

3 0

Answer:

True

Step-by-step explanation:

It is true because when you first do 6.50 times 5 you would get 32.50 then after you do that you add 14.50 which would get you to $47 which is under $50!

Hope this helps :D

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Show work and explain with formulas.

3241004551 [841]

14 Answer: 28

Step-by-step explanation:

$S_\infty=\dfrac{a_1}{1-r}\\\\\sum\limits^\infty_{n=1} 35\bigg(-\dfrac{1}{4}\bigg)^n\implies a_1=35,\ r=-\dfrac{1}{4}\\\\\\S_\infty=\dfrac{35}{1-\bigg(-\dfrac{1}{4}\bigg)}=\dfrac{35}{\dfrac{5}{4}}=35\times \dfrac{4}{5}=7\times 4=\large\boxed{28}$

15A Answer: 49

Step-by-step explanation:

$S_n=\dfrac{a_1+a_n}{2}\cdot n\\\\\\\sum\limits^7_{i=1} i+3\\\\a_1=1+3\quad =4\\a_7=7+3\quad =10\\n=7\\\\\\S_7=\dfrac{a_1+a_7}{2}\cdot 7\\\\\\.\ =\dfrac{4+10}{2}\cdot 7\\\\\\.\ =\dfrac{14}{2}\cdot 7\\\\\\.\ =7\cdot 7\\\\.\ =\large\boxed{49}$

15B Answer: 12

Step-by-step explanation:

$S_n=\dfrac{a_1+a_n}{2}\cdot n\\\\\\\sum\limits^{10}_{k=3} k-5\\\\a_3=3-5\quad =-2\\a_{10}=10-5\quad =5\\n=8\\\\\\S_8=\dfrac{a_3+a_{10}}{2}\cdot 8\\\\\\.\ =\dfrac{-2+5}{2}\cdot 8\\\\\\.\ =\dfrac{3}{2}\cdot 8\\\\\\.\ =3\cdot 4\\\\.\ =\large\boxed{12}$

16 Answer: $\sum\limits^5_{n=1} 3n-2$

Step-by-step explanation:

$\{1, 4, 7, 10, 13\}\implies a_1=1,\ d=3,\ n=5\\\\\text{The explicit rule for an arithmetic sequence is: }a_n=a_1+d(n-1)\\\\a_n=1+3(n-1)\\\\.\ =1+3n-3\\\\.\ =3n-2\\\\\large\boxed{\sum\limits^5_{n=1} 3n-2}$

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3 years ago

Topic 4 Pythagorean Theorem

LekaFEV [45]

It’s not the answer, but if you search Pythagorean theorem calculator online, you can find the missing length by typing in the side lengths you currently have

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3 years ago

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What is the answer to 3 times one third?

vekshin1

Answer:

3 time one third (1/3) equals 1

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3 years ago

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I will repot any links

asambeis [7]

Answer:

Sorry for being late it is a Fewer than 14.05 Hope this helps :D

Step-by-step explanation:

7 0

2 years ago

You purchase a new motor scooter for $3,350. You put a 10% down payment and $108.08 per month on a 36 month purchase plan. Use t

nevsk [136]

Use the formula of the present value of annuity ordinary through GoogleWhat you have here is a loan payment of $108.08 with a present value of $3015 (the $3350 minus the 10% down payment) and a future value of zero with monthly compounding over 36 months
I got
R=0.173906
R=17.3%
good luck

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3 years ago