after spending 7/9 of a three hours examination, a student left the exams hall. How many minutes has he to complete the duration of the examination.​

Answers

Answer 1
40 mins left! total time= 60 mins x 3 hours =180 mins. 180 divided by 9 is 20. 20 times 7 is 140. 180-140 equals 40. yay!

Related Questions

The equal sides of an isosceles triangle are 2 cm shorter than the length of the third side. If the perimeter of the triangle is 35 cm, find the length of the third side.​

with the formula plsssss

Answers

Given Information :

• Equal sides of an isosceles triangle = 2cm shorter than the length of the third side.

To calculate :

• Length of the third side.

Calculation :

Let the third side be c.

Also, two equal sides be a and b.

According to the question,

[tex] \longmapsto [/tex] a = ( Third side - 2 ) cm

[tex] \longmapsto [/tex] a = ( c - 2 ) cm

Similarly, length of b(second side) will also be same as a and b are two equal sides of an isosceles triangle.

[tex] \longmapsto [/tex] b = ( c - 2 ) cm

Now, we know that :

Perimeter of = Sum of all sides

Perimeter = 35 cm.

[tex] \longmapsto [/tex] 35 = a + b + c

[tex] \longmapsto [/tex] 35 = (c - 2) + (c - 2) + c

[tex] \longmapsto [/tex] 35 = c - 2 + c - 2 + c

[tex] \longmapsto [/tex] 35 = c + c + c - 2 - 2

[tex] \longmapsto [/tex] 35 = 3c - 4

[tex] \longmapsto [/tex] 35 + 4 = 3c

[tex] \longmapsto [/tex] 39 = 3c

[tex] \longmapsto [/tex] [tex] \sf \dfrac{39}{3} [/tex] = c

[tex] \longmapsto [/tex] 13 = c

So, third side of the triangle is 13 cm.

Find the median for the numbers Below
20 22 24 26

Answers

The median is going to be 23.

The median to this answer would be 23

If the 5 represents the number of people, what does the 4 represent?

Answers

The amount out of the 5 people doing something most likely :)

IS
The human population doubles
approximately every 50 years. If there
were 2,500,000 people in 1950, how
many people are forecasted to populate
the earth in 2050?

Answers

Answer:

7,500,000

Step-by-step explanation:

Basically times 2,500,000 by 3

The answer is 3 x 2,500,000.

Solve for y please will mark brainly

Answers

Answer:

y = -4

Step-by-step explanation:

since f(y) = 9, you know the equation is equal to 9

9 = [tex]\sqrt{y+29}[/tex] - y

81 + 18y + y^2 = y + 29

y = -4

Can someone help me with this?

Answers

I hope this helps you.

4.
I have two bags of cubes.
Each bag contains more than 20 but fewer than 30 cubes.
(a) I can share the cubes in bag A
equally between 9 people.
How many cubes are in bag A?

Answers

Answer:

Gsgsggsgs glad to helppppppp

what is the volume of the cylinder in terms of n?

Answers

The volume of this cylinder is 12

Consider the first six terms of this sequence:
3, 6, 12, 24, 48,96...

If the sequence defines a function, what is the range?


A. {All Integers}
B. {All Real Numbers)
C {1, 2, 3, 4, 5, 6, ...}
D. {3, 6, 12, 24, 48, 96, ...}

Answers

Answer:

A. {All Integers}, because it will go on forever

​$16,000 is invested for 3 years with an APR of 3​% and daily compounding. The balance in the account after 3 years is ​

Answers

Answer:

$17,440

Step-by-step explanation:

the interest every year

=$16,000×3%

=$16,000×3/100

=$480

the balance after 3 years

=$16,000+3($480)

=$16,000+$1,440

=$17,440

1. Write the equation, in slope-intercept form, of the line with slope 9 and y intercept (0, --13).

Answers

Answer:

[tex]y=9x-13[/tex]

Step-by-step explanation:

Slope-intercept form is [tex]y=mx+b[/tex], where m is the slope, and b is the y-intercept. They tell us the slope is 9, so [tex]m=9[/tex]. They also tell us that the y-intercept is (0,-13), which means that [tex]b=-13[/tex]. Plugging both of those values in gives us the equation:

[tex]y=9x-13[/tex]

Determine the value of θ using a trigonometric ratio.
Question 11 options:

A)

55.15°

B)

34.85°

C)

29.74°

D)

0.01°

Answers

answer

B)34.85°

ur very welcome

Answer:

34.85°

Step-by-step explanation:

Hello, just got done with this exam and got the answer correct!

the product of 215 and 2​

Answers

Answer:

430

Step-by-step explanation:

The "product" means multiply

215*2=430 or you can break it up:

215+215=430

Answer: 430

→Hope this helps!←

What is the equation of a circle whose center is at (2,-4) and has a radius of 5 units?

Answers

Answer:

[tex](x - 2)^2 + (y +4)^2 = 25[/tex]

Step-by-step explanation:

Given

[tex](h,k) = (2,-4)[/tex] --- center

[tex]r = 5[/tex] --- radius

Required

Determine the equation

The equation of the circle is:

[tex](x -h)^2 + (y - k)^2 = r^2[/tex]

From the given parameters, we have:

[tex]h = 2[/tex]

[tex]k = -4[/tex]

[tex]r = 5[/tex]

So:

[tex](x -h)^2 + (y - k)^2 = r^2[/tex]

[tex](x - 2)^2 + (y --4)^2 = 5^2[/tex]

Express -- as +

[tex](x - 2)^2 + (y +4)^2 = 5^2[/tex]

Evaluate the squares

[tex](x - 2)^2 + (y +4)^2 = 25[/tex]

need help with linear function 2 sad face

Answers

the awnser is graph A.

you find the two point that the line is going through and count the squares going up (rise) and count the squares going a cross (run). and that is the slope and the -3 is where the point is on the y intercept

In your own words describe how you would find the volume of a figure using unit cubes?

What is the circumference, in centimeters, of the circle? Use 3.14 for pi (please!!)

Answers

Answer:

the diameter is 24 so the ray is 12

circonference = 2*pi*R = 2*3.14*12= 75.36

It should be 75 cm
Hope that helped

Which two figures have the same number of bases?
cylinder and cone
triangular pyramid and cone
cone and triangular prism
triangular pyramid and cylinder

Answers

QUESTION:

Which two figures have the same number of bases?

ANSWER:

Cone and Triangular pyramid.

I just wanted the points :)

Answer:

Its B i did quiz trust me

Step-by-step explanation:

also please mark me brainliest

How many received D's and F's??

Answers

20 students have received D’s and F’s

They are asking how many in total

13
A company studied the number of lost time acedents occurring at its Brownsville, Texas, plant. Historical records show that 0% of the employees suffered lost
time accidents last yean Management believes that a special safety program will reduce such accidents to 6% during the current year. In addition, it estimates
that 10% of employees who had lost time accidents last year will experience a lost time accident during the current yean
a. What percentage of the employees will experience lost-time accidents in both years (to 2 decimale)
0.015
b. What percentage of the employees will suffer at least one lost time accident over the two year period (to 2 decimals)?
10 Feedback
Incorrect
Hint) Check My Work
outon kry

Answers

Answer:

A) 0.01

B) 0.07

Step-by-step explanation:

We are given;

P(accidents last year) = 0% = 0

P(accidents this year) = 6% = 0.06

P(accidents last year | accidents this year) = 10% = 0.1

A) We want to find the percentage of the employees will experience lost-time accidents in both years.

From multiplication rule in probability, we know that;

P(A & B) = P(A) × P(B|A) = P(B) × P(A|B)

Thus;

P(accident in both years) = P(accidents this year) × P(accidents last year | accidents this year)

P(accident in both years) = 0.06 × 0.1

P(accident in both years) = 0.006

To 2 decimal places gives; 0.01

B) from the addition rule, we know that;

P(A or B) = P(A) + P(B) - P(A & B)

Thus;

P(accident last year or this year) = P(accidents last year) + P(accidents this year) - P(accident in both years)

P(accident last year or this year) = 0 + 0.06 + 0.006 = 0.066

To 2 decimal places = 0.07

Need work to be shown as well

Answers

Answer:

B) 40 yd²

Step-by-step explanation:

Square = 4x4=16

Triangle = 1/2x6x8=24

16+24=40 yd²

Answer:

The answer is B, 40yd2

Step-by-step explanation:

hope this helps

The circle with radius r units is divided into congruent sectors to create the shape shown below.

For estimation purposes, the shape formed by the sectors is considered to be a parallelogram. Which statement is true?

Answers

Answer:

A

Step-by-step explanation:

Just took the test

The statement that asserts a true claim would be:

A). The height is approximately r units and the base length is approximately πr units.

What is the sector?

The sector is described as an element of the circle or a part that extends to the center.

In the given figure, the height of the congruent sectors would be equivalent to r units as the radius is r units.

While the length of its base would be equivalent to πr units to denote the base length.

Thus, option A is the correct answer.

Learn more about "Height" here:

brainly.com/question/10726356

As Mercury revolves around the sun, it travels at a rate of approximately miles per second. Convert this rate to kilometers per second. At this rate, how many kilometers will Mercury travel in seconds? In your computations, assume that mile is equal to kilometers. Do not round your answers.

Answers

Answer:

Step-by-step explanation:

There are a lot of conversion factors involved in this question.

First of all the radius of Mercury's orbit is 0.4 times that of the earth. The earth's distance from the sun is about 93 million miles. So Mercury's distance or radius is 93 * 0.4 = 37.2 million miles.

The circumference = 2 * pi * r

The circumference = 6.28 * 37200000 = 233616000  miles

This is accomplished in 88 days.

88 days [24 hours/day] * [3600 sec / hour] = 7603200 seconds

88 days = 7603200 second

Rate of travel = miles / second

Rate of travel = 233616000 / 7603200

Rate of travel = 30.726 miles / second

This number was not given so I had to derive it. The official number does not disagree a great deal from this number. It just depends on what constants you use.

1 mile = 1.6 km

30.725 miles = x           Cross multiply

x = 1.6 * 30.725

x = 49.16 km/ second

I cannot go any further because you have not provided any givens. The answers do vary quite a bit because I have assumed that Mercury's orbit is a circle. It really is not. It is more like an ellipse.  

The official speed in km/sec = 47 which means the answer I have given is very close. A more accurate answer would require that you put the numbers in the blanks that you were given.

Find the magnitude of vector v that has an initial point of (1, 3) and a terminal point of (7, 1)

v=2√10
v=2√14
v=4√2
v=4√5

Answers

Answer:

It's totally correct with no doubt

A jar contains 3 blue marbles, 4 yellow marbles, and 3 green marbles.
What is the probability of randomly choosing a yellow marble, replacing
it, and then choosing a blue marble?

Answers

Answer:

3/25

Step-by-step explanation:

There are 10 total marbles

P(yellow) = yellow/total = 4/10 = 2/5

We replace it so there are 10 marbles

P(2nd marble blue) = blue /total = 3/10

Multiply the two probabilities together

P(yellow, replace, blue) =2/5*3/10 = 3/25

Answer:

3/25

Step-by-step explanation:

gvfhcfhvg fbdhuvd

50 pts please help asap

Answers

Answer:

solution:

the measure of arc AD

:

arc AD+arc CD=180° linear pair

arc AD=180-45=135°

the measure of arc AD=135 degree

Is f(x)=-3x+1 even or odd?

Answers

A function is even if f(x)=f(-x), and odd if f(x)=-f(-x). If a function satisfies neither of these, it is neither even nor odd.

[tex]f(x)=-3x+1\\f(-x)=-3(-x)+1=3x+1[/tex]

Since f(x) is equal to neither f(-x) nor f(-x), the function is neither even nor odd.

What are the coordinates of point A?
(–2, –6)
(–6, –2)
(–6, –3)
(–3, –6)

Answers

(-3,-6) is the answer

3.
Gary needs to cut a length of ribbon into 10 pieces. Each
piece must be 50cm long. What length of ribbon does he
need to buy?

Answers

Answer:

he needs 500 cm of ribbon

Step-by-step explanation:

pieces cut =10

size of pieces = 50 cm each .

50 × 10 = 500 answers

I need an answer! pls ill brainlist

Answers

Answer:

die

Step-by-step explanation:

so in order to die you must die

Which is a measure of the efficiency of an investment?
A.efficiency cocfficient
B.return on investment
C.return rato

Answers

Answer:

B. return on investment

Step-by-step explanation:

Return on Investment (ROI) is a performance measure used to evaluate the efficiency of an investment or compare the efficiency of a number of different investments.

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