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Ipatiy [6.2K]
3 years ago
15

BRAINLIESTTT ASAP! PLEASE HELP ME :)

Mathematics
2 answers:
drek231 [11]3 years ago
8 0

Answer:

Step-by-step explanation:

Just plug in 20 for t:

f(20)=\frac{60*20}{20^2+46}=\frac{1200}{400+46}=\frac{1200}{446}=2.69058

Llana [10]3 years ago
7 0

Answer:

\displaystyle 2\frac{154}{223}\:mg. = f(20)

Step-by-step explanation:

\displaystyle \frac{60[20]}{20^2 + 46} = \frac{1200}{400 + 46} = \frac{1200}{446} = 2\frac{154}{223}

I am joyous to assist you anytime.

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Find the sum.<br> 10 + 12 + 14 + ... + 80
lyudmila [28]

Answer:

1620

Step-by-step explanation:

The amount of even integers between 10 and 80 inclusive is 36 (5 for each interval of 10 [e.g., 10-19 has 5, 20-29 has 5] and one extra for 80).

Since the numbers are consecutive even numbers, we can use the fact that the sum of the numbers is equal to the average of the numbers, times the number of numbers.

The average of the numbers is 45, since \frac{10+80}{2}=45. We can use only the two outer numbers to determine the average since the numbers are all evenly spaced as they are consecutive even numbers.

45\times36=1620, so the sum is 1620.

8 0
3 years ago
I need help!?????????
Lorico [155]
Use photomath app. U can solve all those problem with that app. 

7 0
4 years ago
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Dmitrij [34]

Answer:

C x=55

Step-by-step explanation:

the angles of a trianlge add up to 180

the unmarked angle is also 35 because of the same side length

35+35=70

180-70=110

BUT 2x=110 so x=55

P.S Can I get brainlist?

4 0
3 years ago
What is 5 divided by 6 rounded to three significant figures? pls help ASAP.
Ksju [112]

Answer:

0.833

Step-by-step explanation:

5/6 = 0.83333333

Only the 8 and 3's are Significant Figures, so the answer is 0.833.

7 0
3 years ago
What items did she buy
ipn [44]

Answer:

Cap, purse, and dress

Step-by-step explanation:

235+490+95= 820

Hope that helps :D

<u><em>-Jazz</em></u>

4 0
3 years ago
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