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3 years ago

What is this answer?

Mathematics

1 answer:

dusya [7]3 years ago

4 0

1/84

1/7 ÷ 12

turn 12 into 1/12 bc your dividing fractions and turn the division symbol to multiplication

1/7 × 1/12

answer: 1/84

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Give. b(x) = |x + 4| what is b(-10)

lesantik [10]

Answer:

Step-by-step explanation:

b(x) = |x + 4|

b(-10) = |-10 + 4|

-10 + 4 = -6

|-6| = 6

b(-10) = 6

6 0

4 years ago

Read 2 more answers

) 8(-5d - 4z) use z = 7 and d = 8<br> WHAT IS THE ANSWER

Nitella [24]

If my ans was helpful u can follow me

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4 years ago

Southwest Co-op produces bags of fertilizer, and it is concerned about impurity content. It is believed that the weights of impu

Harman [31]

Answer:

a) 0.216

b) 0.1587

c) 0.369

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 12.2 grams

Standard Deviation, σ = 2.8 grams

We are given that the distribution of weights of impurities per bag is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) P(contains less than 10 grams of impurities)

P(x < 10)

$P( x < 10) = P( z < \displaystyle\frac{10 - 12.2}{2.8}) = P(z < -0.7857)$

Calculation the value from standard normal z table, we have,

$P(x < 10) =0.216= 21.6\%$

b) P(contains more than 15 grams of impurities)

P(x > 15)

$P( x > 15) = P( z > \displaystyle\frac{15 - 12.2}{2.8}) = P(z > 1)$

$= 1 - P(z \leq 1)$

Calculation the value from standard normal z table, we have,

$P(x > 610) = 1 - 0.8413 = 0.1587 = 15.87\%$

c) P(contains between 12 and 15 grams of impurities)

$P(12 \leq x \leq 15) = P(\displaystyle\frac{12 - 12.2}{2.8} \leq z \leq \displaystyle\frac{15-12.2}{2.8}) \\\\= P(-0.0714 \leq z \leq 1)\\\\= P(z \leq 1) - P(z < -0.0714)\\= 0.841 - 0.472 = 0.369 = 36.9\%$

$P(12 \leq x \leq 15) = 36.9%$

d) The mean divide the data in exactly two parts. Since 15 is farther away from the mean as compared to 10, the probability obtained in part (b) is smaller as compared to probability obtained in part (a).

5 0

4 years ago

What is the upper quartile, Q3, of the following data set?

Ivenika [448]

UQ’s place = 3/4(n+1) so its 3/4 of 16 which is 12 so its the 12th place so its 24

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3 years ago

Which equation represents a line that passes through (4, 1/3,) and has a slope of 3/4 ?

Aleks [24]

Answer:

second option

Step-by-step explanation: