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2 years ago

What is the value of the expression (2 1/4 - 7 1/2) - (-1 1/4)

Mathematics

2 answers:

____ [38]2 years ago

7 0

Answer:

=24/142

=-188/4+111/4

= -7/4 ANS.

MARK ME BRAUNLIST PLZ.

JulsSmile [24]2 years ago

5 0

Answer:

-4

Step-by-step explanation:

2 1/4 - 7 1/2 = -5.25

-5.25 - (-1 1/4) = -4

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Answers choices <1 <4 <2 <3

Maslowich

Answer:

B) 4

Step-by-step explanation:

1. It is either 3 or 4, since those are only two angles comparing the lighthouse and the boat.

2. The angle of depression is noted below the horizontal and above the actual line, and out of 3 and 4, 4 is the only angle that is below its corresponding horizontal.

So, the angle of depression from the lighthouse to the boat is 4.

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3 years ago

Determine if g and h are parallel or not

Igoryamba

Answer:

Step-by-step explanation:

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2 years ago

A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 48.0 and 58.

Yanka [14]

Answer: 0.025

Step-by-step explanation:

Given : A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between the interval [48.0 minutes, 58.0 minutes].

The probability density function :-

$f(x)=\dfrac{1}{58-48}=\dfrac{1}{10}$

Now, the probability that a given class period runs between 50.25 and 50.5 minutes is given by :-

$\int^{50.5}_{50.25}\ f(x)\ dx\\\\=\int^{50.5}_{50.25}\ \dfrac{1}{10}\ dx\\\\=\dfrac{1}{10}|x|^{50.5}_{50.25}\\\\=\dfrac{1}{10}\ [50.5-50.25]=\dfrac{1}{10}\times(0.25)=0.025$

Hence, the probability that a given class period runs between 50.25 and 50.5 minutes =0.025

Similarly , the probability of selecting a class that runs between 50.25 and 50.5 minutes = 0.025

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2 years ago

8 fluid ounces time 1 quart

myrzilka [38]

Answer:

0.25

Step-by-step explanation:

If one quart equals 32 ounces, then we multiply the volume by 32

4 0

3 years ago

Could someone pls help me and explain this if you know it!!

yanalaym [24]

Answer:

25% on question one

Step-by-step explanation:

For example, on question one, 5 students drink more than half a dozen sodas a week. If there is a total of 20 students you'd divide 5 by 20 and that should be the answer.

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3 years ago