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Alex777 [14]
3 years ago
7

Help w(n)=-2n-1. Find f(3)

Mathematics
1 answer:
Natali5045456 [20]3 years ago
5 0

Answer:

-7/3

Step-by-step explanation:

substitute 3

w(3)=-2(3)-1

3w=-6-1

3w=-7

divide by 3

w=-7/3

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Jennie has 7 tickets for carnival rides. The Ferris wheel costs 4 tickets, The roller coaster costs 6 tickets. the merry-go-roun
algol13

Answer: 6

Step-by-step explanation:

7 - 3 = 4

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6 0
3 years ago
Please help with this question, I need to make sure I'm right. Thanks
Lina20 [59]

an=4n+1

Sum of first 30 terms

a1+a2+.................a30

 Sn=(a1+an)*n/2

a1-----------first terms

an=---------last term-----a30

n= number of terms-----30

 calculation of a1

a1=4n+1=4*1+1=5

 calculation of an

a30=4*30+1=121

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S30=(5+121)*30/2=1890

<span>The sum of first 30 terms is 1890</span>


4 0
3 years ago
Write the expression 8⋅ y ⋅ y ⋅ y ⋅ y using exponents.
Paladinen [302]

Answer:

8^4 8 to the fourth power

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
Given P(A) = 0.44, P(B) 0.6 and P(An B) = 0.394, find the value of
geniusboy [140]

Given:

P(A)=0.44,P(B)=0.6,P(A\cap B)=0.394.

To find:

The value of P(A\cup B), rounding to the nearest thousandth.

Solution:

We know that,

P(A\cup B)=P(A)+P(B)-P(A\cap B)

On substituting P(A)=0.44,P(B)=0.6,P(A\cap B)=0.394, we get

P(A\cup B)=0.44+0.6-0.394

P(A\cup B)=0.646

Therefore, the value of P(A\cup B) is 0.646.

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3 years ago
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Step-by-step explanation:

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