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Dafna1 [17]
3 years ago
7

Please help I will give brainliest!!

Mathematics
1 answer:
blagie [28]3 years ago
8 0
I am pretty sure it’s the first one
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HELP ME WITH MY MATH ASSIGNMENT, WILL GIVE ANYTHING, DUE TOMORROW! :(
nataly862011 [7]

Answer:

Answer is 225.

We have to find the sum of 15 terms of the series

sigma 1 to 15 (2n-1)

This can be split as per summation terms as

sigma 2n - sigma 1

sigma 2n can again be simplified by taking 2 outside

sigma 2n= 2 times sum of natural numbers of 1 to 15

= 2(15)(16)/2= 240

sigma 1= 1+1+...15 times= 15

Hence final answer is

= 2 times sigma n - (n) = 240-15 = 225.

Step-by-step explanation:


4 0
3 years ago
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I AM GOING TO SCREAM!! I HAVE LITERALLY DRAINED MY POINTS FOR SOMEONE TO ANSWER THIS QUESTION - answer both a and b plz, brainli
sergey [27]

Answer:

a) 12

b) 13

Step-by-step explanation:

f(x) = x^2 + 3

g(x) = 2x - 1

a) f(g(2)) = ?

g(2) = 2(2) - 1

= 4 - 1

= 3

f(g(2)) = f(3) = 3^2 + 3

= 9 + 3

= 12

b) g(f(2)) = ?

f(2) = 2^2 + 3

= 4 + 3

= 7

g(f(2)) = g(7) = 2(7) - 1

= 14 - 1

= 13

7 0
3 years ago
Solve for x <br><br> ln 5 + ln x + 3
olchik [2.2K]
4 is the correct answer i believe! :) sorry if wrong.
please put brainliest!
5 0
3 years ago
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A recipe for jelly frosting calls for 1/3 cup of jelly and 1 egg white.
Dvinal [7]

Answer:

No the number of egg whites used is not proportional to the cups of jelly used.

Step-by-step explanation:

if your jelly is 1/3 cup then just one egg white is not also 1/3 a cup

5 0
3 years ago
Jason recorded these temperatures one day:
kap26 [50]

Answer:

C. The afternoon temperature was 6 degrees above the night temperature.

Step-by-step explanation:

this is correct because the 6 is 6 more than 0.

8 0
2 years ago
Read 2 more answers
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