3 years ago

What is the value of Fraction 1 over 2x3 + 3.4y when x = 2 and y = 5?

Mathematics

1 answer:

Triss [41]3 years ago

7 0

Answer:

C.21

Step-by-step explanation:

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Ronch [10]

Answer:

X=7

Step-by-step explanation:

7*15=105 7-2=5 5*25=125 125+105=230

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2 years ago

Add -4 + 2/3 A) -5 2/3 B) -4 2/3 C) -3 2/3 D) -3 1/3

kodGreya [7K]

Answer:

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3 years ago

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Answer:

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2 years ago

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Me.perez drove a total of 40 miles in 5 days she drove the same number of miles each day.how many miles did me.perez drive each

ahrayia [7]

Answer:

She drove 8 miles each day.

Step-by-step explanation:

Given that she drove equal number of miles in 5 days. So in order to find the number of miles in each days, you have to divide it by 5,

$5days = 40miles$

$1day = 40 \div 5$

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3 years ago

The SAT Reasoning Test (formerly called the Scholastic Aptitude Test) is perhaps the most widely used standardized test for coll

slamgirl [31]

Answer:

The score is $x = 1884$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 1500$

The standard deviation is $\sigma = 300$

From the question we are told that the score follow a normal distribution

i.e $X \~ \ N( 1500 , 300)$

The proportion of score in the top 10% is mathematically

$P(X > x ) = P( \frac{X - \mu}{\sigma } > \frac{x - \mu}{\sigma } ) = 0.10$

Where x is the minimum score required to be in the top 10%

Now the $\frac{X - \mu}{\sigma } = Z (The \ Standardized \ value \ of \ X)$

$P(X > x ) = P( Z > \frac{x - \mu}{\sigma } ) = 0.10$

$P(X > x ) = P( Z > \frac{x - 1500}{300} ) = 0.10$

So the critical value of 0.10 from the normal distribution table is $Z_{0.10} = 1.28$

$\frac{x - 1500}{300} = 1.28$

$x = 1884$

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3 years ago