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3 years ago

Tom read a novel for 1 1/4 hours and comic books for 1 2/5 hours. How long did Tom read?

1 answer:

6 0

Tom read a novel for 1 1/4 hours and comic books for 1 2/5 hours.

How long did Tom read?

Tom read a novel for 1 1/4 hr or 1 hr and 15 min.
Tom read a comic book for 1 2/5 hr or 1 hr and 24 min.

1:15 + 1:24 = 2 hrs and 39 min.

Hope this helps!

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The linear density in a rod 8 meters long is 10/(sqrt(x 1)) kg/m, where x is measured in meters from one end of the rod. Find th

ehidna [41]

Answer:

The average density of the rod is 1.11 kg/m

Step-by-step explanation:

Linear density is given by the expression 10/(sqrt(x 1)) kg/m

x is said to be measured in meters from one end of the rod. Therefore x represents the length of the rod = 8 m

Substitute the value of x into the expression of linear density to determine the average density of the rod

Average density = 10/(sqrt(81)) = 10/9 = 1.11 kg/m

6 0

2 years ago

Line segment AB has endpoints A(0, 3) and B(2, 2). What is the midpoint of

natali 33 [55]

Answer:

The options doesn't match or the question is wrong but the answer is (1,2.5)

Step-by-step explanation:

$x_{m}=\frac{0+2}{2}=1\\y_{m}=\frac{3+2}{2}=2.5$

3 0

2 years ago

he production of pipes has a mean diameter of 3.25 inches and a standard deviation of .15 inches. The shape of the distribution

o-na [289]

Answer:

The probability that a randomly chosen part has diameter of 3.5 inches or more is 0.9525

Step-by-step explanation:

$Mean = \mu = 3.25 inches$

Standard deviation = $\sigma = 0.15 inches$

We are supposed to determine the probability that a randomly chosen part has diameter of 3.5 inches or more

$P(Z \geq 3.5)=1-P(z$

Refer the z table for p value

$P(Z \geq 3.5)=1-0.0475\\P(Z \geq 3.5)=0.9525$

Hence the probability that a randomly chosen part has diameter of 3.5 inches or more is 0.9525

7 0

2 years ago

figure a is a scale image of figure b the scale image that maps figure a onto figure b is 1:7 1/4 enter the value of x

skad [1K]

Answer: $x=21.75$

Step-by-step explanation:

You need to convert from mixed number to decimal number.

In order to do this, you can follow the steps shown below:

1. You must divide the numerator of the fraction by the denominator of the fraction.

2. Now you must add the quotient obtained to the Whole number part.

Then, you get:

$7\frac{1}{4}=7+0.25=7.25$

Then, the scale image that maps "Figure A" onto "Figure B" is:

$1:7.25$

Finally, in order to find the value of "x", you need to multiply the given length of the corresponding side of "Figure A" by $7.25$ .

Therefore, the result is:

$x=(3)(7.25)\\\\x=21.75$

3 0

3 years ago

Air-USA has a policy of booking as many as 24 persons on an airplane that can seat only 22. (Past studies have revealed that onl

Alex17521 [72]

Answer:

B. no, it is not low enough

A. no, it is not low enough

Step-by-step explanation:

Given that Air-USA has a policy of booking as many as 24 persons on an airplane that can seat only 22.

Prob for a random person booked arrive for flight = 0.86

No of persons who books and arrive for flight, X is binomial, since there are two outcomes and each person is independent of the other

The probability that if Air-USA books 24 persons, not enough seats will be available

= P(X=23)+P(x=24)

= 0.1315

B. no, it is not low enough

-------------------------------

The prob we got is >10% also

A. no, it is not low enough

7 0

2 years ago