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3 years ago

Five consecutive multiples of 3 add up to 105. What is the second smallest number 89 points!

Mathematics

2 answers:

RUDIKE [14]3 years ago

4 0

Answer:

Step-by-step explanation:

Oliga [24]3 years ago

3 0

Answer:

Step-by-step explanation:

Let's call the first number n. The next four numbers will be n + 3, n + 6, n + 9 and n + 12. Then, we have

n + n + 3 + n + 6 + n + 9 + n + 12 = 105

5n + 30 = 105

5n = 75

n = 15

The second smallest number is n + 3 which is 15 + 3 = 18.

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A company has a policy of retiring company cars; this policy looks at number of miles driven, purpose of trips, style of car and

IRINA_888 [86]

Answer:

The approximate percentage of cars that remain in service between 73 and 84 months

P( 73 < x < 84 ) = 0.02145 = 2.1 %

Step-by-step explanation:

Explanation:-

Given mean of the Population 'μ ' = 51 months

Standard deviation of the Population 'σ' = 11 months

Let 'X' be the random variable of Normal distribution

Let 'X' = 73

$Z = \frac{x-mean}{S.D} = \frac{73-51}{11} = 2$

Let 'X' = 84

$Z = \frac{84-51}{11} = 3$

The approximate percentage of cars that remain in service between 73 and 84 months

P( 73 < x < 84 ) = P( 2 < Z < 3)

= P( Z<3) - P( Z <2)

= 0.5 + A(3) - ( 0.5 + A(2))

= A(3) - A( 2)

= 0.49865 - 0.4772 ( From Normal table)

= 0.02145

P( 73 < x < 84 ) = 0.02145

The approximate percentage of cars that remain in service between 73 and 84 months

P( 73 < x < 84 ) = 0.02145 = 2.1 %

7 0

3 years ago

The base of a solid S is the region bounded by the parabola x^2=8y

nexus9112 [7]

Step-by-step explanation:Updated answer is the second one

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1 year ago

Using the greatest common factor 4/9 x 3/8

KIM [24]

Answer:

1/6

Step-by-step explanation:

4/9&3/8

4/9x3/8= ?

Multiply both numerators

= 4 x 3

= 12

Multiply both denominators

= 9 x 8

= 72

Use above values of step 2 & 3, and rewrite as below

= 12/72

so, 12/72 is equivalent to the fraction for 4/9 times of 3/8, and its simplified form is 1/6.

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2 years ago

Find the 10th term of the geometric sequence in which a1=1 and r=2.5

diamong [38]

Answer:

a10=3,814.7

Step-by-step explanation:

Use the formula an = a1(r)^n-1 and solve.

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2 years ago