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
Yuri [45]
2 years ago
5

A student has scores of 64, 62, and 72 on his first three tests. He needs an average of at least 70

Mathematics
2 answers:
Effectus [21]2 years ago
7 0

Answer:

82

62 +64+72+82=280

280 divided four(#of scores given) = 70

so 82 is the forth score if the student wants a 70 in the class

kotegsom [21]2 years ago
3 0

Answer:

73 or more

Step-by-step explanation:

You might be interested in
A diver descends 130 feet below the surface over 35 minutes. what was his average rate of descent
attashe74 [19]

I believe you would do the feet ,130, divided by the minutes ,35, to get how many feet per minute. It would get you a never ending decimal of 3.714285. So  every minute he would drop about 4 feet. You will have to put it how it says to for what your answering is. If it says round to the whole number then he would drop 4 feet, but I hope this helps you in any way :)

4 0
3 years ago
First come first serve<br> 1+1 equals what <br> you will get 40 points
Kryger [21]

Answer: 1+1 = 2 :)

Step-by-step explanation:

7 0
2 years ago
WILL GIVE BRAINLIEST ! ANSWER ASAP!
bazaltina [42]

Answer:

x=17

Step-by-step explanation:

5 0
2 years ago
Are integers_____ rational numbers?<br> Always<br> Sometimes<br> Never
Alexandra [31]

Answer:

sometimes because it depends on the sign whether it's negative or positive

4 0
3 years ago
Read 2 more answers
How do you get an equation to solve for all 3 sides of a triangle?
slavikrds [6]

In your solving toolbox (along with your pen, paper and calculator) you have these 3 equations:

1. The angles always add to 180°:

A + B + C = 180°

When you know two angles you can find the third.

 

2. Law of Sines (the Sine Rule):

Law of Sines

When there is an angle opposite a side, this equation comes to the rescue.

Note: angle A is opposite side a, B is opposite b, and C is opposite c.

 

3. Law of Cosines (the Cosine Rule):

Law of Cosines

This is the hardest to use (and remember) but it is sometimes needed  

to get you out of difficult situations.

It is an enhanced version of the Pythagoras Theorem that works  

on any triangle.

With those three equations you can solve any triangle (if it can be solved at all).

Six Different Types (More Detail)

There are SIX different types of puzzles you may need to solve. Get familiar with them:

1. AAA:

This means we are given all three angles of a triangle, but no sides.

AAA Triangle

AAA triangles are impossible to solve further since there are is nothing to show us size ... we know the shape but not how big it is.

We need to know at least one side to go further. See Solving "AAA" Triangles .

 

2. AAS

This mean we are given two angles of a triangle and one side, which is not the side adjacent to the two given angles.

AAS Triangle

Such a triangle can be solved by using Angles of a Triangle to find the other angle, and The Law of Sines to find each of the other two sides. See Solving "AAS" Triangles.

 

3. ASA

This means we are given two angles of a triangle and one side, which is the side adjacent to the two given angles.

ASA Triangle

In this case we find the third angle by using Angles of a Triangle, then use The Law of Sines to find each of the other two sides. See Solving "ASA" Triangles .

 

4. SAS

This means we are given two sides and the included angle.

SAS Triangle

For this type of triangle, we must use The Law of Cosines first to calculate the third side of the triangle; then we can use The Law of Sines to find one of the other two angles, and finally use Angles of a Triangle to find the last angle. See Solving "SAS" Triangles .

 

5. SSA

This means we are given two sides and one angle that is not the included angle.

SSA Triangle

In this case, use The Law of Sines first to find either one of the other two angles, then use Angles of a Triangle to find the third angle, then The Law of Sines again to find the final side. See Solving "SSA" Triangles .

 

6. SSS

This means we are given all three sides of a triangle, but no angles.

SSS Triangle

In this case, we have no choice. We must use The Law of Cosines first to find any one of the three angles, then we can use The Law of Sines (or use The Law of Cosines again) to find a second angle, and finally Angles of a Triangle to find the third angle.

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is 22/9 as a mixed number plz help
    6·2 answers
  • Name the quadrant in which cotθ and cosθ are negative.
    15·2 answers
  • A line passes through the point (0,5) and has a slope of -1/2 which is the equation of the line in slope intercept form?
    6·1 answer
  • A car is driven 402.5 miles on 11.5 gallons of gas. Find the number of miles traveled per gallon of gas
    10·2 answers
  • The two matrices show the cost of three different electronics prices (rows) at two different stores (columns). Matrix F is from
    7·2 answers
  • Approximate the number 32 to the nearest hundreth
    7·1 answer
  • 17 students said they enjoy summer the most.
    13·1 answer
  • Sally’s dance school had 60 students last year. This year there are only 48 students enrolled. By what percent did the enrollmen
    11·1 answer
  • Tony’s investments lost $12,545.50 in value over the past 2.5 months. On average, how much did his investments change each month
    9·1 answer
  • A spcial die is made in the shape of an icosahedron its faces are numbered wish the 1 to 20
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!