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Klio2033 [76]
3 years ago
12

5. Class 7887 has 2:7 math classes daily. How many math classes do they have

Mathematics
1 answer:
ANTONII [103]3 years ago
5 0

Answer:

56.7

Step-by-step explanation:

2.7 x 21 = 56.7

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If it takes Andre 4 minutes to swim five laps how much will it take him to swim 22 laps at the same speed
Musya8 [376]

Answer:

17.6 minutes

Step-by-step explanation:

\frac{4}{5} = \frac{x}{22}

5x=22

x=\frac{22}{5}

4(\frac{22}{5} ) = \frac{88}{5} = 17.6

5 0
3 years ago
What function transforms the graph of the parent function f(x)=2^x by reflecting it across the y axis and translating it up 5 un
babunello [35]

Coefficient of x is less than 0 then it's across the y axis

So f(x)=2^x ---> g(x) = 2^-x

Then translating it up 5 units, should be  g(x) = 2^(-x)  + 5


Answer is the last one

g(x) = 2^(-x) + 5

6 0
3 years ago
Read 2 more answers
The sequence 2,6,18,54 shows the number of sit-ups Alan can do each day.
jek_recluse [69]

Step-by-step explanation:

this sequence is geometric not arithmetic

HOw we know that ??

when we get a common difference  that must Be equal  

d=6-2=4  not equal to  d=18-6=12

So it is not arithmetic

but when we get the common ratio that also must be equal

r=6/2=18/6=54/18=3    equal

So it is geometric

By using this equation:

a(n)=a(1)*r^(n-1)

and we have a(1)=2 , r=3    

<u>Explicit rule:</u> a(n)=2*(3)^(n-1)

<u>Recursive rule:</u>  a(n)= r * a(n-1)

a(n-1) ⇒ priviuse term

SO:  a(n)= 3 * a(n-1)

For example:

a(3)= 3 * 6 =18

<em>I really hope this helps <3</em>

7 0
3 years ago
Anyone know how to solve this. I got 4 but wasn’t correct
Annette [7]

Answer:

12

Step-by-step explanation:

8 0
2 years ago
Help is GREATLY appreciated.
Lynna [10]
I think its 28.5, but you should check with someone else.
4 0
3 years ago
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