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4 years ago

4/15 + 7/9 what is the sum

Mathematics

1 answer:

SCORPION-xisa [38]4 years ago

7 0

Answer:

54/45 = 1 1/5 - one and one fifth

Step-by-step explanation:

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Describe fully the single transformation that maps triangle A onto triangle B.<br>

Makovka662 [10]

Answer:

i think i got it sorry if i didnt

Step-by-step explanation:

rotate it 180 degrees

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3 years ago

14 workers, working at the same pace, can lay 36000 bricks in one day. How many workers will be needed to lay 54000 bricks in th

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Answer: 22 workers

Step-by-step explanation:

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3 years ago

Read 2 more answers

Please help due soon

Svetach [21]

Answer:

Your answer is A. x=6

Step-by-step explanation:

plug in 6 for x and youll get your answer

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3 years ago

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In its Fuel Economy Guide for 2014 model vehicles, the Environmental Protection Agency gives data on 1160 vehicles. There are a

Ivahew [28]

Answer:

$Q_1=18.69\\Q_2=22.2\\Q_3=25.7$

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 22.2 miles per gallon

Standard Deviation, σ = 5.2 mpg

We are given that the distribution of gas mileage is a bell shaped distribution that is a normal distribution.

Formula:

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

First Quartile(Cumulative proportion 0.25)

We have to find the value of x such that the probability is 0.25

P(X < x)

$=P( z \leq \displaystyle\frac{x - 22.}{5.2})=0.25$

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

$P(z$

$\displaystyle\frac{x - 22.2}{5.2} = -0.674\\\\x = 18.69$

$Q_1 = 18.69$

Second Quartile(Cumulative proportion 0.5)

We have to find the value of x such that the probability is 0.5

P(X < x)

$=P( z \leq \displaystyle\frac{x - 22.}{5.2})=0.5$

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

$P(z$

$\displaystyle\frac{x - 22.2}{5.2} = 0.0\\\\x = 22.2$

$Q_2 = 22.2$

Third Quartile(Cumulative proportion 0.75)

We have to find the value of x such that the probability is 0.75

P(X < x)

$=P( z \leq \displaystyle\frac{x - 22.}{5.2})=0.75$

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

$P(z$

$\displaystyle\frac{x - 22.2}{5.2} = 0.674\\\\x = 25.70$

$Q_3 = 25.70$

Inter-quartile range:

$Q_3-Q_1=25.70-22.2 = 3.5$

3 0

3 years ago

HELP PLEASE!!!!! THESE ARE MY LAST POINTS HELP!!

Aleks04 [339]

9514 1404 393

Answer:

x ≈ 10.6

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to help you remember the relationship between trig functions and side of a right triangle. In particular, when the opposite side and hypotenuse are involved, the desired relation is ...

Sin = Opposite/Hypotenuse

For your triangle, this is ...

sin(62°) = x/12

x = 12·sin(62°)

x ≈ 10.6

4 0

3 years ago