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Andrei [34K]
3 years ago
12

Could you guys please help me solve this basic math. PLS OMG ITS DUE :(

Mathematics
1 answer:
marysya [2.9K]3 years ago
8 0

Answer:

21÷-3=-7

I dont know what all those extra boxes are for but I hope I helped a little

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4 0
3 years ago
Sherman has two sequences . The first sequence is described by the explicit rule f(n) = 15n + 4 and the second sequence is descr
Viktor [21]

Answer:

Step-by-step explanation:

Given the explicit function as

f(n) = 15n+4

The first term of the sequence is at when n= 1

f(1) = 15(1)+4

f(1) = 19

a = 19

Common difference d = f(2)-f(1)

f(2) = 15(2)+4

f(2) = 34

d = 34-19

d = 15

Sum of nth term of an AP = n/2{2a+(n-1)d}

S20 = 20/2{2(19)+(20-1)15)

S20 = 10(38+19(15))

S20 = 10(38+285)

S20 = 10(323)

S20 = 3230.

Sum of the 20th term is 3230

For the explicit function

f(n) = 4n+15

f(1) = 4(1)+15

f(1) = 19

a = 19

Common difference d = f(2)-f(1)

f(2) = 4(2)+15

f(2) = 23

d = 23-19

d = 4

Sum of nth term of an AP = n/2{2a+(n-1)d}

S20 = 20/2{2(19)+(20-1)4)

S20 = 10(38+19(4))

S20 = 10(38+76)

S20 = 10(114)

S20 = 1140

Sum of the 20th terms is 1140

7 0
2 years ago
P(A)=0.45, P(A∩B)=0.15 and P(B\A)=0.25 what is the value of P(A\B)
Fiesta28 [93]

Answer:

0.35? That is correct?

7 0
3 years ago
Answer both parts of the question with all of the numbers pls
jekas [21]

f(x) answers

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g(x) answers

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4 0
3 years ago
Can someone help me on 12,13,14 :)
Stels [109]

Answer:

m∠XYZ = 166

AB = 2√5

Modpoint (1 , 5)

Step-by-step explanation:

Look at the photo below for the details.

:)

4 0
3 years ago
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