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lbvjy [14]
3 years ago
9

ASAP ASAP ASAP PLS HELP

Mathematics
1 answer:
Yanka [14]3 years ago
6 0
I believe A is correct, because it is 6.10 and D is 6.16 (A and D are both close to 6 so i’m not sure)

B is 5.7 and C is 5.8
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A sequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an =
Licemer1 [7]
I think you mean a_n= \frac{a_{n-1}}{a_{n-2}}
basically that measn yo divide that term by the previous term
ok

a3=a1/a2=1/2
a4=a3/a2=(1/2)/2=1/4
a5=a4/a3=(1/4)/(1/2)=1/2
a6=a5/a4=(1/2)/(1/4)=2
a7=a6/a5=2/(1/2)=4
a8=a7/a6=4/2=2
a9=a8/a7=2/4=1/2
a10=a9/a8=(1/2)/2=1/4
ok, so notice a pattern
a3=a9
a4=a10
I therefor conclude that a_n=a_{n+6w} where w is a whole number
and n>2ok, so
241=6*39+7
so therefor
a_{241}=a_{7+6(39)}
therefor the 241th term is same as a7 or 4

I say a241 is 4
7 0
4 years ago
Read 2 more answers
Original grade: 80<br> New grade: 100<br> Find the percent of increase.<br> 107
Kipish [7]

Step-by-step explanation:

Based on the given conditions,

Formulate:(100-80)÷80

Calculate the sum or difference:20/80

Cross out the common factor:1/4

Multiply a number to both the numerator and the denominator:1/4×25/25

Write as a single fraction :25/4×25

Calculate the product or quotient :25/100

Rewrite a fraction with denominator equals 100 to a percentage:25%

Answer : 25%

5 0
2 years ago
An article in an educational journal discussing a non-conventional high school reading program reports a 95% confidence interval
Maksim231197 [3]

Answer:

The margin of error associated with this confidence interval is 20

Step-by-step explanation:

A confidence interval has two bounds, a lower bound and an upper bound. The interval is symmetric, which means that the margin of error is the difference between these two bounds(upper - lower), divided by 2.

In this problem, we have that:

Lower bound: 520

Upper bound: 560

Determine the margin of error associated with this confidence interval.

(560 - 520)/2 = 20

The margin of error associated with this confidence interval is 20

6 0
3 years ago
MATH HELP PLEASE
Anna35 [415]
If the angles are congruent then m∠ACB is 50°.
4x+4=6x-14
-4       -4
4=   2x-14
+14    +14
18=2x
x=9
Plug into one of the expressions.
4(9)+4
46+4
50
Sadly I do not know the scale factor rule yet. Just one lesson ahead :(
I hope I helped on first!

4 0
3 years ago
Someone please help, i’m so dumb
yan [13]

Answer:

x=3

plug that in

123 is the answer

Step-by-step explanation:

4 0
3 years ago
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