Answer:
D)4x + 6/(x + 1)(x - 1)
Step-by-step explanation:
A field is basically a rectangle, so to find the perimeter of our field we are using the formula for the perimeter of a rectangle
where
is the perimeter
is the length
is the width
We know from our problem that the field has length 2/x + 1 and width 5/x^2 -1, so and .
Replacing values:
Notice that the denominator of the second fraction is a difference of squares, so we can factor it using the formula where is the first term and is the second term. We can infer that and . So, . Replacing that:
We can see that the common denominator of our fractions is . Now we can simplify our fraction using the common denominator:
We can conclude that the perimeter of the field is D)4x + 6/(x + 1)(x - 1).
Answer:
its 13 if i saw the numbers right
Step-by-step explanation:
evaluate then you get the below
1-(-4)x(-3)+12/(-6)
___________
-1
divide and get;
-(1-(4)x(-3)+12/(6))
remove parentheses and divide
-(1+4x(-3)-2)
multiply and get
-(1-12-2)
calculate
-(-13)
remove "()"
and you get 13
Answer:
4x + 2y
Step-by-step explanation:
If you subtract 5x + 3y from 9x + 5y, you get:
9x + 5y
<u> - 5x + 3y</u>
4x + 2y
Answer:
420 - x grams.
Step-by-step explanation:
Aderyn is making a vegetable stew for = 6 people.
A recipe indicates that 5 ounces of finally diced onions are needed for = 2 people
1 ounce = 28 grams.
So for 1 people onions are needed = 5/2 = 2.5 ounces or 70 grams.
Therefore, finally diced onion are needed for 6 people = 70 × 6 = 420 grams.
Aderyn needs total 420 grams of diced onion to make her vegetable stew for 6 people.
Let she has already prepared some diced onions = x
then she needs more to make her vegetable stew = 420 - x.
Step-by-step explanation:
Answer:
Direct Variation:
- The number of family members are directly expenditures.
- The number of fruit in kg directly proportional to price of fruit.
- The number of selling products directly proportional to profit.
- The distance covered by body directly proportional to speed of body
- The acceleration produce in car directly proportional to change in velocity
- The income is directly proportional to working hours.
- The cost of electrical bill directly proportional to number of fans running in the house.
- The quantity of water fill in tank is directly to time for which the motor is switch on.
- The marks in study is directly proportional to hardworking.
- The bank balance is directly proportional to amount of saving.
Inverse Variation:
1. The bank balance is inversely proportional to expenditures.
2. The number of family members (which not work) are inversely proportional to amount of saving.
3.The working days required to complete the work are inversely proportional to number of labors.
4. The velocity of body is inversely proportional to time.
5. The acceleration is inversely proportional to time.
6. The acceleration of body is inversely proportional to mass of body.
7. The number of student fail in the class is inversely proportional to number of qualify teachers and hardworking.
8. The battery power is inversely proportional to time for which it used.
9. The ability of do work hard is inversely proportional to age of man after youngness to onward.
10. The number of mistake in work is inversely proportional to practice.
Explanation:
<u>Direct Variation</u>: A <u>relationship</u> where one quantity is a constant multiplied by another quantity is called <u>direct variation</u>.
<u>Inverse Variation</u>: <u>Inverse variation</u> is defiend as the relationship between two variables in which the resultant product is a constant. If a is inversely proportional to b, the form of equation is a = k/b, where k is constant. Inverse variation is known as the opposite of direct variation. If there an increas ein one variable, the other variable decreases in proportion so that the resultant product remains unchanged.