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3 years ago

True or False? The Length of time on the desk is a function of the temperature of the coffee

Mathematics

1 answer:

Andreyy893 years ago

4 0

Should be true. The coffee would not stay the same temperature as it was originally than it would over time.

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When rounding 72.631 to the hundredths place, Jack rounded to 72.64 and Tamar rounded to 72.63. Who is correct? EXPLAIN YOUR ANS

Mrrafil [7]

Answer:

Tamar

Step-by-step explanation:

Since we're rounding to the hundredths place, we need to see if the thousandths place is greater or equal to 5. Since it is less than 5, we round down to 72.63.

3 0

3 years ago

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Solve | 2x + 6 | = x

Lemur [1.5K]

Answer:

1) soln,

or,2x+6=x

or,2x-x= -6

or,x= -6

•°•x= -6 Ans#

4 0

3 years ago

Final question!!!!!!!!!

Novay_Z [31]

Im pretty sure the Correct answer is D

I Could be Wrong Tho.

5 0

3 years ago

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In a recent year, a sample of grade 8 Washington State public school students taking a mathematics assessment test had a mean sc

Daniel [21]

Answer:

The number is $N =1147$ students

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 281$

The standard deviation is $\sigma = 34.4$

The sample size is n = 2000

percentage of the would you expect to have a score between 250 and 305 is mathematically represented as

$P(250 < X < 305 ) = P(\frac{ 250 - 281}{34.4 } < \frac{X - \mu }{\sigma } < \frac{ 305 - 281}{34.4 } )$

Generally

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

$P(250 < X < 305 ) = P(-0.9012< Z$

$P(250 < X < 305 ) = P(z_2 < 0.698 ) - P(z_1 < -0.9012)$

From the z table the value of $P( z_2 < 0.698) = 0.75741$

and $P(z_1 < -0.9012) = 0.18374$

$P(250 < X < 305 ) = 0.75741 - 0.18374$

$P(250 < X < 305 ) = 0.57$

The percentage is $P(250 < X < 305 ) = 57\%$

The number of students that will get this score is

$N = 2000 * 0.57$

$N =1147$

6 0

3 years ago

What are the factors of 17

julia-pushkina [17]

1 and 17 are the only factors.

7 0

3 years ago

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