3 years ago

Find 1st, 2nd, 3rd, 4th and 10th nTh term. rule is 3n+4

Mathematics

1 answer:

Irina-Kira [14]3 years ago

7 0

Answer:

When n is 1

3n+4

=3*1+4

=3+4

When n is 2

3n+4

=3*2+4

=6+4

=10

When n is 3

3n+4

=3*3+4

=9+4

=13

When n is 4

3n +4

=3*4+4

=12+4

=16

When n is 10

3n+4

=3*10+4

=30+4

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3 years ago

3/a times x -4 equals 20

jenyasd209 [6]

Answer:

a = -5/3

Step-by-step explanation:

3/a × -4 = 20

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3a = -5

a = -5/3

Check:

3/(-5/3) × - 4 = 20

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1 year ago

In a box of 25 external hard disks, there are 2 defectives. An inspector examines 5 of these hard disks. Find the probability th

Salsk061 [2.6K]

Answer:

0.3667 or 36.67%

Step-by-step explanation:

The probability of getting at least 1 defective hard disk among the 5 (P(X>0)) is equal to 100% minus the probability of getting none defectives (1-P(X=0)).

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$P(X>0) = 1 -P(X=0)\\P(X>0) = 1 -\frac{23}{25}*\frac{22}{24} *\frac{21}{23} *\frac{20}{22} *\frac{19}{21}\\ P(X>0) = 0.3667=36.67\%$

The probability that there is at least 1 defective hard disk is 0.3667 or 36.67%.

8 0

3 years ago

Help me solve this problem

Aleks04 [339]

I believe 1/9=9, 2/9=18, 3/9=27, 4/9=36
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3 years ago

If f(x) = 2x + 3 and g(x) = 3x - 9, find (f + g)(x).

coldgirl [10]

Answer:

5x-6

Step-by-step explanation:

f(x) = 2x + 3

g(x) = 3x - 9

f(x) + g(x) = 2x + 3 + 3x-9

= 5x-6

5 0

3 years ago