1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stiks02 [169]
3 years ago
6

A truck and a car go at the same time against each other from two cities, which are at a distance of 400 km from each other. If

the vehicles are moving at a constant speed of 68 km / h and 82 km / h, respectively, find after how long they have met?
Mathematics
1 answer:
ivann1987 [24]3 years ago
7 0

Answer: after about 96 Minutes

Step-by-step explanation:

You might be interested in
What is the area of the shaded segment?
Whitepunk [10]

Answer:

6\pi-9\sqrt{3

Step-by-step explanation:

The area of a pie-slice shape can be found with the equation A=\pi nr^2/360 where n is the angle of the shape and r is the radius of the circle. In this case, n=60 and r=6. Therefore, the total area of the pie-slice is \pi (60)(6^2)/360=6 \pi

Next, the triangle that makes up the unshaded part of the segment is an equilateral triangle because the angle is 60. The area of an equilateral triangle is \sqrt{3}r^2/4 where r is the length of one of its side (in this case, r=6). Plugging that in, we get an area of 9 \sqrt{3}

Finally, the area of the shaded is the area of the pie-slice minus the area of the triangle: 6\pi-9\sqrt{3

8 0
3 years ago
Factor the polynomial: 81b^2 - 64c^2
Lilit [14]

Answer:

160D^2

Step-by-step explanation:

5 0
3 years ago
If mAGF = mBGC = mDGC = mEGF = 67°, what is mAGB?
lesantik [10]
Ggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg
4 0
4 years ago
Classify the triangle by its sides and angles
viva [34]
A right triangle has one 90°angle, and the sum of the 2 other angles equals 90.

an equilateral triangle has all sides and angles of the triangle congruent. each angle will equal 60°

an isosceles triangle has 2 congruent sides and 2 congruent angles.

a scalene triangle has no equal sides or equal angles.

an obtuse triangle has one angle that is greater than 90°

an acute triangle has all angles that are less than 90°

Hope this helps you classify your triangles!



4 0
3 years ago
Yesenia records the ages of 9 friends. A
OLEGan [10]

Answer:

did not get the point of the sum

3 0
3 years ago
Other questions:
  • Collin is making a bulletin board and note center. He is using square cork tiles and square dry-erase tiles. One of every 3 squa
    9·1 answer
  • A teacher writes the function f(x)=3x^2-18x+27 on the board. How many times does the graph of the teacher's function intersect t
    8·1 answer
  • Apply the distributive property to simplify the expression 8(3x - 6)
    15·1 answer
  • For the given functions f and g find the composition:f(x)=x^2+6x-2 g(x)=x-6
    15·1 answer
  • How many 1 x 1 inch square tiles IH <br>will fit in an 8 x 8 inch square<br>tile? Draw.​
    14·1 answer
  • Lim as x goes to 0: (2sinxcosx)/(2x^2+x)=
    13·1 answer
  • The points (-18,15) and (-20,15) lie on a circle with a radius of 1. Find the coordinates of the center of the circle.
    9·1 answer
  • Alaina bought a square frame for her desk that has an area of 81 square inches. What is the perimeter of the frame?
    10·1 answer
  • A, B &amp; C form the vertices of a triangle.
    8·1 answer
  • John ordered a caramel tea and he was lucky enough it was 20% off so if the original price was $5.75 how much does it cost??
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!