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3 years ago

I need help with this question

Mathematics

1 answer:

Leya [2.2K]3 years ago

3 0

The function has 3 real 0s. They are at X=-6, X= -2.236068, and X=2.236068

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Simplify 9x^2 - 25/3x-5

satela [25.4K]

First, we are going to write it like this:
$\frac{9x^2-25}{3x-5}$
Then, we are going to do something like factoring, but it's not factoring. An example would be: $x^2-y^2=\left(x+y\right)\left(x-y\right)$
If we apply it, we would be left with:
$=\frac{\left(3x+5\right)\left(3x-5\right)}{3x-5}$
We cancel the common factors, and we are left with:
$=3x+5$
That's our final answer.

Let me know if you need any more help!
Thanks!
-TetraFish

4 0

3 years ago

A neighborhood was given a vacant lot in the shape of a rectangle on which to build a park. The neighborhood is considering how

Montano1993 [528]

Answer:

The triangle and trapezoid area formulas have One-half in them.

In the trapezoid formula, the bases are added.

Step-by-step explanation:

Topic: Plane Shapes

Basically, the requirement of the question is to compare area of shapes. The shapes are

Trapezoid
Triangle
Parallelogram
Rectangle

The Area of a Trapezoid is $(\frac{a + b}{2} )h$ where a and b are the bases of the trapezoid and h is the height

The Area of a Triangle is $\frac{bh}{2}$ where b and h are the base and the height of the triangle respectively

The Area of a Parallelogram is $b * h$ where b and h are the bases and the height of the parallelogram

The Area of a Rectangle is $l * b$ where l and b are the length and the breadth of the triangle respectively

Checking option a through e

A. The triangle and trapezoid area formulas have One-half in them.

True; Area of a Triangle is $\frac{bh}{2}$ while Area of a Trapezoid is $(\frac{a + b}{2} )h$

B. The parallelogram and rectangle formulas are both the same.

False; Area of a Parallelogram is $b * h$ while Area of a Rectangle is $l * b$

C. In the parallelogram formula, the bases are added.

False; The basis are not added

Area of a Parallelogram is $b * h$

D. In the trapezoid formula, the bases are added.

True; Area of a Trapezoid is $(\frac{a + b}{2} )h$

E. In the triangle formula, the sides are added, then multiplied by One-half.

False; Area of a Triangle is $\frac{bh}{2}$

4 0

4 years ago

Read 2 more answers

There are 6 students participating in a poetry contest, in how many ways can the students who go first and second in the bee be

lukranit [14]

Answer:

There are are 30 possible ways for the 6 students to be ranked 1st and 2nd

Step-by-step explanation:

There are 6 students, and any of them could receive first place. Therefore, there are 6 possibilities for first place.

A student cannot receive first and second place, so the student who won first place cannot also win second place. Therefore, there are only 5 students who could win second place.

We can multiply these two possibilities to find the number of possible rankings of 1st and 2nd

6*5=30

There are are 30 possible ways for the 6 students to be ranked 1st and 2nd....

3 0

4 years ago

99 × 31 = ( 100 × 31 ) - ( 1 x 31 )

Eduardwww [97]

Step-by-step explanation:

yess it is the same bro (^^)

8 0

3 years ago

If the ordered pair (x, y) is the solution for the system of equations, what is the value of y? x + y = 29 x + 2y = 12

Crank

Answer:

(46 , -17)

Step-by-step explanation:

hello :

x + y = 29...(*)

x + 2y = 12 ...(**)

multiply (*) by -1 : -x-y=-29 ...(***)

add (**) and(***) : y=-17

put this value in (*) : x-17 =29

so : x=46

one solution : (46 , -17)

8 0

3 years ago