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2 years ago

HELP PLEASE LIAM SAYS -(5/12) is equal to 5/-12 is he correct or wrong ?

Mathematics

1 answer:

Sophie [7]2 years ago

3 0

Answer:

He's incorrect

Step-by-step explanation:

lf you put -(5/12) you get -2 1/2 and 5/-12 is -0.4166 and so forth. You can tell these number's aren't the same, so always check with a culculator to make sure. In this case he is wrong.

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alina1380 [7]

Answer:

greatest number of people: 6760

lowest number of people: 6240

Step-by-step explanation:

4% of 6500 is 260

6500 + 260 = 6760

6500 - 260 = 6240

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3 years ago

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X-3 (x+2) is less than 4x

lapo4ka [179]

no it is more than 4x it is 6x

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2 years ago

Tony’s Electronics is marking down the price of a TV 23% from the original price of $175. Which expression can be used to find t

Arlecino [84]

Answer:

The sale price is $\$134.75$

The expression is $\$175(0.77)$

Step-by-step explanation:

we know that

The sale price is equal to subtract the discount price from the original price

The discount price is equal to multiply the original price by the percent discount in decimal form

Let

x ----> the sale price

y ---> discount price

$23\%=23/100=0.23$ ----> percent discount in decimal form

$y=\$175(0.23)=\$40.25$

$x=\$175-y$

substitute

$x=\$175-\$40.25=\$134.75$

therefore

the expression is

$175-0.23(175)\\175(1-0.23)\\175(0.77)$

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2 years ago

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Write the point-slope form of the line that passes through (6, 1) and is perpendicular to a line with a slope of -3. Include all

jeka94

ANSWER

$y-1= \frac{1}{3} (x- 6)$

EXPLANATION

We want to write the point-slope form of the line that passes through (6, 1) and is perpendicular to a line with a slope of -3.

The slope of this line is negative reciprocal of -3.

$m = - \frac{1}{ - 3} = \frac{1}{3}$

The point-slope form is given by:

$y-y_1=m(x-x_1)$

We substitute the point and the slope to get;

$y-1= \frac{1}{3} (x- 6)$

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2 years ago

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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

5 0

2 years ago