Braulio went I to the museum at 11:17 a.m. Then he had an appointment so he left the meuseum at 2:35. How long was he at the museum

QUESTION POSTED AT 15/01/2020 - 03:09 AM

Answered by admin AT 15/01/2020 - 03:09 AM

Well u subtract 11:17 to 2:35 which is 8 hours and 82 minutes but there is only 60 minutes in a hour so it is 9 hours 22 minutes
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Related questions

Heather is training for a long-distance run. her data points listed below represent the days of practice, x, and the number of miles run, y.(1, 2.5), (2, 4.2), (4, 5.6), (6, 7), (8, 8.1), (10, 11)use the equation to interpolate the value and estimate the distance that she could have run on day 3. round to the nearest tenth of a mile.

Interpolation equation
Poit 1: (a,b)
Point 2: (c,d)
Intermediate point (x,y)

(d - b)/(c - a) = (y - b) / (x - a)

(a,b) = (2, 4.2)
(c,d) = (4, 5.6)

x = 3

(5.6 - 4.2) / (4 - 2)  =  (y - 4.2) / (3 -2)

y =  [1.4/2]*[1] + 4.2

y = 0.7 + 4.2 = 4.9

Answer 4.9 miles

 




ANSWERED AT 29/01/2020 - 04:51 PM


QUESTION POSTED AT 29/01/2020 - 04:51 PM

A car approaching an intersection has a 0.1 probability of turning left and a 0.2 probability of turning right. explain why the events are mutually exclusive.

There is  no way the car can turn left and right at the same time. Only one occurrence can take place.

ANSWERED AT 29/01/2020 - 04:47 PM


QUESTION POSTED AT 29/01/2020 - 04:47 PM

Help please!!! 1. Mike observed that 75% of the students of a school liked skating. If 35 students of the school did not like skating, the number of students who liked skating was ______. (only put numeric values, no other symbols) 2. In a certain county, the number of charter schools is 6 less than twice the number of alternative schools. We know that there are 52 charter schools in the county. How many alternative schools are in the county?

1. I feel the need to explain things first before I write the numeric value. 
   Let x be the total number of students in the school. 25% of this value is given to be 35.
                        (0.25)x = 35
The value of x is 140. 75% of this value is the answer which is equal to 105.

2. Let y be the alternative schools. With this, the number of charter schools is 2x - 6 which is equal to 52 
                              2x - 6 = 52
The value of x is 29. Therefore, there are 29 charter schools. 

ANSWERED AT 29/01/2020 - 04:37 PM


QUESTION POSTED AT 29/01/2020 - 04:37 PM

What are the lengths of the legs of a right triangle in which one acute angle measures 19° and the hypotenuse is 15 units long? a) 9 units, 12 units b) 11 units, 10.2 units c)4.9 units, 15.8 units d)4.9 units, 14.2 units e)5.2 units, 14.1 units

The side opposite the angle 19 degrees is given by 15sin 19 = 4.9 units, while the side adjacent the angle 19 degrees is given by 15cos 19 = 14.2 units.

ANSWERED AT 29/01/2020 - 04:36 PM


QUESTION POSTED AT 29/01/2020 - 04:36 PM

Please Help!!! I give a medal to anyone to tries!!! 3 party-goers are in the corner of the ballroom having an intense argument. You walk over to settle the debate. They are discussing a function g(x). You take out your notepad and jot down their statements. • Professor McCoy: She says that 2 is a zero of g(x) because long division with (x + 2) results in a remainder of 0. • Ms. Guerra: She says that 2 is a zero of g(x) because g(2) = 0. • Mr. Romano: He says that 2 is a zero of g(x) because synthetic division with 2 results in a remainder of 0.

Well, the way I see it is that both Mr. Romano, and Ms. Guerra are correct but Professor McCoy is incorrect because he said (x+2) when it should be (x-2).


The factor theorem states that:
If f(a)=0, then (x-a) is a factor


The remainder theorem states that:
If (x-a) is a factor of f(x), then f(x) / (x-a)  = 0


So if 2 is indeed a zero of f(x), then a factor must be (x-2) according to the fist which supports Ms. Guerra and also if (x-2) is indeed a factor as Ms. Guerra says then we know that f(x) / (x-a) = 0 which supports Mr. Romano

Professor McCoy is wrong because he used (x + 2) when it should be (x-2). I know this because according to the factor theorem if f(a)=0, then (x-a) is a factor. And the remainder theorem says if (x-a) is a factor of f(x), then f(x)/x-a =0.

ANSWERED AT 29/01/2020 - 04:30 PM


QUESTION POSTED AT 29/01/2020 - 04:30 PM

Tina would like to melt down her existing gold jewelry to make a 20 ounce gold necklace that is 90% pure gold. After melting her jewelry, she is left with two batches. One batch is 75% pure. The other batch is 96% pure. How much of the 96% pure melted gold should Tina mix with the 75% pure melted gold to obtain 20 ounces of 90% pure gold? A. 5.71 ounces B. 7.00 ounces C. 14.29 ounces D. 13.00 ounces

Represent the amount of 96% and 75% pure gold by x and y, respectively. With the representation, the useful equations would be,
                                x + y = 20
                           0.96x + 0.75y = (20)(0.90)
The solution of this system of linear equation is (14.29, 5.71). Therefore, the amount of the 96% pure gold is 14.29 ounces. The answer would be letter C. 
           

ANSWERED AT 29/01/2020 - 04:29 PM


QUESTION POSTED AT 29/01/2020 - 04:29 PM

PLEASE HELP ! Fill in the blank. The light from a lamp casts a shadow of a man standing 15 feet away from the lamppost. The shadow is 5 feet long. The angle of elevation from the tip of the shadow to the lamp is 50. To the nearest foot, the lamppost is _____ feet tall.

Answer: Approximately 24 feet.

Step-by-step explanation:

Let line segment AB represents the length of the lamppost (In which A shows the top), CD shows the height of the man ( C shows his head ) and E represents the tip of the shadow.

Hence, According to the question,

AD = 15 feet, DE = 5 feet and ∠ E = 50

By the below diagram,

\frac{AB}{AE}=tanE

\frac{AB}{AD+DE}=tanE

\frac{AB}{15+5}=tan 50^{\circ}

\frac{AB}{20}=tan 50^{\circ}

AB=20\times tan 50^{\circ} = 23.8350718519\approx 24

Thus, the approximately length of the lamppost = 24 feet.

ANSWERED AT 29/01/2020 - 04:18 PM


QUESTION POSTED AT 29/01/2020 - 04:18 PM

A credit card issuer charges an APR of 13.99%, and its billing cycle is 30 days long. What is its periodic interest rate? A. 14.37% B. 1.15% C. 0.97% D. 11.43%

A credit card issuer charges an APR of 13.99%, and its billing cycle is 30 days long its periodic interest rate would be 1.15%. The correct answer between all the choices given is the second choice or letter B. I am hoping that this answer has satisfied your query about and it will be able to help you, and if you’d like, feel free to ask another question.

ANSWERED AT 29/01/2020 - 04:15 PM


QUESTION POSTED AT 29/01/2020 - 04:15 PM

How many six-digit odd numbers are possible if the left digit cannot be zero?

We are asked for the number of six-digit odd numbers that can be formed. the left-most digit should not be zero because it make the number -five digit already. An odd number ends only in 1, 3, 5, 7 and 9. Using counting, the 6th digit can only have 5 numbers, the 5th, 4th, 3rd, and 2nd can have, 10 numbers. The first number can only have 9 numbers. Hence the total number is 450,000

ANSWERED AT 29/01/2020 - 04:15 PM


QUESTION POSTED AT 29/01/2020 - 04:15 PM

What is the radius of a circle in which a 30° arc is 2(pi) inches long?

For this specific problem, the radius of a circle in which a 30° arc is 2(pi) inches long would be 12 inches. I am hoping that this answer has satisfied your query about and it will be able to help you.

ANSWERED AT 29/01/2020 - 03:52 PM


QUESTION POSTED AT 29/01/2020 - 03:52 PM

4. If a function, f(x) is shifted to the left four units, what function represents the transformation?. A. f(x-4). B. f(x) - 4. C. f(x+4). D. f(x) + 4. .

If a function, f(x) is shifted to the left four units, the function that represents the transformation would be f(x+4). The correct answer between all the choices given is the third choice or letter C. I am hoping that this answer has satisfied your query about and it will be able to help you.

ANSWERED AT 29/01/2020 - 03:51 PM


QUESTION POSTED AT 29/01/2020 - 03:51 PM

. Question 1.1. What is the first step in solving x2 + 2x + 3 = 0 by completing the square?. (Points : 1). Factor the left side.. . Add 1 to each side of the equation.. . Divide both sides of the equation by 2.. . Subtract 3 from each side of the equation..

The first step to solving an equaiton of the formax2+bx+c = 0is by completing the square by first dividing by a, givingx2+bx/a+c/a = 0 
then subtract c/a to both sides.

In this regard, the first step to the equation is to C. . Subtract 3 from each side of the equation..

ANSWERED AT 29/01/2020 - 03:50 PM


QUESTION POSTED AT 29/01/2020 - 03:50 PM

After 3 days a sample of radon-222 has decayed to 58% of its original amount. (a) What is the half-life of radon-222? (Round your answer to two decimal places.) b) How long will it take the sample to decay to 10% of its original amount? (Round your answer to two decimal places.)

The half-life of the radioactive substance can be determined through teh equation ln 2 = k (t 1/2) where k is equal to ln (1/(1-0.58)) / 3. Hence t 1/2 is equal to 2.40 days. To decay to 10% of the original amount, ln (1/0.90) / ( ln2) / 2.40, time is equal to 0.37 days.

ANSWERED AT 29/01/2020 - 03:48 PM


QUESTION POSTED AT 29/01/2020 - 03:48 PM

Kevin plans to put concrete on a rectangular portion of his driveway. The portion is 10 feet long and 3 inches high. The price of concrete is $98 per cubic yard. The total cost of the concrete Keven needs is $72.59. Which of the following is closest to the width of the portion of the driveway on which Kevin plans to put concrete? 3 feet 6 feet 8 feet 10 feet I got 6 feet for my answer, but I'm not sure if I did this right...Could someone check this for me?

Since he pays $72.59, he does have: $98yard3 = $72.59x which is the same as which is the same as yard3 $98 = x $72.59. This expression is equivalent to yard3×$72.59$98=x yards which is equal to 0.74 yards. This is equal to 20.25 feet. hence, 20.25 =  y* 10 ft * (3/12) ft; y is then equal to 8.1 feet or C. 8 feet.

ANSWERED AT 29/01/2020 - 03:43 PM


QUESTION POSTED AT 29/01/2020 - 03:43 PM

What affect does the "a" value have on the function f(x) = log(x)? A. The "a" value reflects the graph across the y-axis. B. The "a" value moves the function up or down. C. The "a" value moves the function to the left or right. D. The "a" value stretches the function vertically by a factor of absolute value of a.

The correct answer to this question is letter "A. The "a" value reflects the graph across the y-axis."

I would guess they're referring to some general form which is
f(x) = a log(x − h) + k

Where h represents horizontal shifts, k vertical shifts and a stretches the function.

a will also reflect the function across the x-axis if the value is negative. But NOT across the y-axis.

ANSWERED AT 29/01/2020 - 03:42 PM


QUESTION POSTED AT 29/01/2020 - 03:42 PM

Kalon and his friend Marna own a chimney sweep service company. Working together, they can clean a chimney in 1 5/7 hours. If it takes Kalon 4 hours to clean a 20-foot chimney by himself, how long does it take Marna to clean the same size chimney by herself?

If Kalon can complete the job in 4 hours, he has completed 1 5/7 over 4 of the job if he works together with Marna. Letting x be the number of hours it will take Marna to work alone, she has completed 1 5/7 over x of the job. The amounts of job they have done should be equal to 1.
                             (1 5/7 / 4) + ( 1 5/7  / x ) = 1
The value of x is 3. So, Marna can clean the chimney in 3 hours. 

ANSWERED AT 29/01/2020 - 03:40 PM


QUESTION POSTED AT 29/01/2020 - 03:40 PM

The number of nails of a given length is normally distributed with a mean length of 5 in. and a standard deviation of 0.03 in. In a bag containing 120 nails, how many nails are more than 5.03 in. long? a.about 38 nails b.about 41 nails c.about 16 nails d.about 19 nails

Answer:

(D) About 19 nails

Step-by-step explanation:

It is given that mean length= 5 inches and the standard deviation =0.03.

In order to standardize x to z, we use the formula=\frac{(x-{\mu})}{{\sigma}}.

Now, probability of nails having length more than 5.03= P(x>5.03)=P(z>\frac{(5.03-5)}{0.03})

=P(z>1)

=0.1587 b(Using the normal probability table)

In a bag of 20 nails, nails having length more than 5.03 inches=20{\times}0.1587=19.004

= about 19 nails.

ANSWERED AT 29/01/2020 - 03:37 PM


QUESTION POSTED AT 29/01/2020 - 03:37 PM

The legs of a right triangle are 18 centimeters and 80 centimeters long. What is the length of the hypotenuse?

Answer with Step-by-step explanation:

Pythagorean theorem states that:

Hypotenuse²=a²+b²

Where a and b are the length of the legs of a right angled triangles.

We are given a and b to be 18 cm and 80 cm

We have to find Hypotenuse

Using Pythagorean theorem

Hypotenuse²=18²+80²

                     = 6724

                    = 82²

⇒ Hypotenuse=82

Hence, length of the hypotenuse is:

82 centimeters

ANSWERED AT 29/01/2020 - 02:49 PM


QUESTION POSTED AT 29/01/2020 - 02:49 PM

A garden is 15 feet long by 5 feet wide the length and width of the garden will each be increased by the same number of feet right in algebraic Waze and represent the perimeter of the garden which of the following would be a crack representation of the larger garden

This is something that i can not answer right now because i have a headace but later i will answer this so dont you worry.

ANSWERED AT 29/01/2020 - 02:29 PM


QUESTION POSTED AT 29/01/2020 - 02:29 PM

Justine graphs the function f(x) = (x – 7)2 – 1. on the same grid, she graphs the function g(x) = (x 6)2 – 3. which transformation will map f(x) on to g(x)? left 13 units, down 2 units right 13 units, down 2 units left 13 units, up 2 units right 13 units, up 2 units

Answer:

13 units to the left and 2 units down

Step-by-step explanation:

we have

f(x)=(x-7)^{2}-1

This is a vertical parabola open upward with the vertex at point (7,-1)

g(x)=(x+6)^{2}-3

This is a vertical parabola open upward with the vertex at point (-6,-3)

The rule of the transformation is

(x,y)-----> (x-13,y-2)

That means

The translation is 13 units to the left and 2 units down

ANSWERED AT 29/01/2020 - 01:50 PM


QUESTION POSTED AT 29/01/2020 - 01:50 PM

If g(x) = x^2 - 2x, find g(5) a. -5 b. 5 c. 35 d. 15

Hello,

g(5)=5²-2*5=25-10=15

Answer D

ANSWERED AT 29/01/2020 - 01:50 PM


QUESTION POSTED AT 29/01/2020 - 01:50 PM

Sharina simplified the expression 3(2x – 6 – x 1)^2 – 2 4x. in step 1 she simplified within the parentheses. in step 2 she expanded the exponent. which is a possible next step? a. simplify the expression by adding and subtracting from left to right. b. combine like terms within the parentheses. c. combine all x-terms. d. distribute the 3 to each term in the parentheses by multiplying.

D. distribute the 3 to each term in the parentheses by multiplying.

Watch:

Beginning 3(2x - 6 - x - 1)^2 - 2 + 4x

Step 1: simplify within the parentheses: 3(x-7)^2 - 2 + 4x

Step 2: Expand the exponent: 3 (x^2 -14x +49) - 2 + 4x

Step 3: distribute 3 to each term in the parentheses by multiplying

3x^2 - 42x + 147 - 2 + 4x

Step 4: you can do it.

ANSWERED AT 29/01/2020 - 01:47 PM


QUESTION POSTED AT 29/01/2020 - 01:47 PM