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cestrela7 [59]
3 years ago
7

Given the following sequence and an-1 = 12, what is an? 2, 7, 12, 17,...

Mathematics
1 answer:
aleksley [76]3 years ago
5 0

Answer:

12

Step-by-step explanation:

a_{n-1}=12\\\\Plug\: n = n + 1\\\\a_{n+1-1}=12\\\\\huge \red {\boxed {a_{n}=12}} \\\\

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A driver spent 45minutes to cover a distance of 120km. what is the speed of the driver in km per hour.
drek231 [11]

Answer:

  • The speed is 160 km /h

Step-by-step explanation:

A driver spent 45minutes to cover a distance of 120km

Convert minutes to hour

  • 45 min = 45 /60 hr = 3/4 hr

Use the distance equation

  • d = ts

Find the speed

  • s = d/t

Substitute the distance and time value and find the value of speed

  • s = 120 / (3/4) = 120 * 4/3 = 160 km /h
4 0
2 years ago
each music class sings 8 songs a week. how many songs does each class sing in 5 weeks? 6 weeks? 7 weeks?
Dvinal [7]

The <em>correct answers</em> are:


40 songs;

48 songs; and

56 songs.


Explanation:


Since each class sings 8 songs per week, to find the number of songs for any given number of weeks, we multiply:


8 songs per week * 5 weeks = 40 songs

8 songs per week * 6 weeks = 48 songs

8 songs per week * 7 weeks = 56 songs

5 0
3 years ago
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I am completely stumped...
Nana76 [90]

Answer:

x=25\sqrt{2}

Step-by-step explanation:

the hypotenuse is equal to a leg times the square root of 2. which means to find the leg with the hyp given. you take \frac{50}{\sqrt{2} } which then translates to 50 root 2/2=x  therefore 25\sqrt{2}

7 0
3 years ago
Amanda and Katie are twins. At birth, Amanda was 6 3/10 pounds and Katie was 5 9/10 pounds. What is their combined birth weight?
Fantom [35]

Answer:

10 2/10

Step-by-step explanation:

because together it equals 9 12/10 but that cant happen so you add 1 to the 9 and get 10 so you have 2 left over

Mark me as brainliest

3 0
3 years ago
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Put all of the numbers you have (starting from the smallest number to the biggest) in a line. Then the number in the middle is the median.
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3 years ago
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