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konstantin123 [22]
3 years ago
7

FAST ASAP!! WILL GIVE BRAINLIST ALOT OF POINTS

Mathematics
1 answer:
Alik [6]3 years ago
3 0

Answer:

= 3 3/4 m^2

or 15/4 m^2

Step-by-step explanation:

The base is the triangle.  

A =1/2 bh

A = 1/2  (3 1/3 * 9/4)

Change 3 1/3 to an improper fraction (3*3+1)/3 = 10/3

A = 1/2 * 10/3 *9/4

Re arranging

   =  1/2* 9/3 * 10/4

 = 1/2 (3) 5/2

 =15/4

Now writing as a mixed number

= 3 3/4 m^2

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Nine identical cakes weigh a total of 20¼ pounds. How much does each cake weigh? Simplify.
KATRIN_1 [288]

Answer:

2\frac{1}{4}

Step-by-step explanation:

20 1/4 = 20.25

20.25/9 = 2.25

2.25 = 2\frac{1}{4}

Each cake weighs 2.25 pounds.

4 0
3 years ago
Factor the cubic polynomial 6x3 – 11x2 – 12x 5. use the rational root theorem and synthetic division
pochemuha

The factorization of given cubic polynomial 6x³ - 11x² - 12x + 5 is:  

6x³ - 11x² - 12x + 5 = (x + 1)(x - \frac{5}{2})(x - \frac{1}{3})

For given question,

We have been given the cubic polynomial 6x³ - 11x² - 12x + 5

We need to factorize given cubic polynomial.

By the rational roots theorem, any rational zero of f(x) is expressible in the form ± \frac{p}{q} for integers p, q with p a divisor of the constant term 5 and q a divisor of the coefficient 6 of the leading term.

Factors of p = 5: 1, 5

Factors of q = 6: 1, 2, 3, 6

That means that the only possible rational zeros are:

±{ \frac{1}{1} ,\frac{1}{2} ,\frac{1}{3} ,\frac{1}{6} ,\frac{5}{1} ,\frac{5}{2} ,\frac{5}{3} ,\frac{5}{6} }

= ±{ 1 ,\frac{1}{2} ,\frac{1}{3} ,\frac{1}{6} ,5 ,\frac{5}{2} ,\frac{5}{3} ,\frac{5}{6} }

We need to find the exact zeros of given cubic polynomial.

For x = 1,

6(1)³ - 11(1)² - 12(1) + 5 = -12

This means, x = 1 is not a zero of given cubic polynomial.

For x = -1,

6(-1)³ - 11(-1)² - 12(-1) + 5 = 0

This means, x = -1 is a zero of given cubic polynomial and (x + 1) is a factor.

To factorize given cubic polynomial we use synthetic division.

The synthetic division (6x³ - 11x² - 12x + 5) ÷ (x + 1) is as shown in following image.

⇒ 6x³ - 11x² - 12x + 5 = (x + 1)(6x² - 17x + 5)

The factors of above quadratic polynomial 6x² - 17x + 5 are:

⇒ 6x² - 17x + 5 = (x - \frac{5}{2})(x - \frac{1}{3})

So, the factors of given cubic polynomial are:

⇒ 6x³ - 11x² - 12x + 5 = (x + 1)(x - \frac{5}{2})(x - \frac{1}{3})

Therefore, the factorization of given cubic polynomial 6x³ - 11x² - 12x + 5 is:  6x³ - 11x² - 12x + 5 = (x + 1)(x - \frac{5}{2})(x - \frac{1}{3})

Learn more about the polynomial here:

brainly.com/question/16594008

#SPJ4

4 0
2 years ago
3 2 3<br> 6n + 3n - 4n
Lana71 [14]

Answer:5n^2

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Can anyone please help i have no one to help me​
adoni [48]

Answer:

<em>Graph below</em>

Step-by-step explanation:

<u>Transformations</u>

Triangle ABC has coordinates A=(-4,2) B=(-2,6) C=(3,2)

We'll use the transformation (x,y) -> (2x, y+3) to map it to the triangle A'B'C'. Let's calculate the coordinates:

A'=(-8,5)

B'=(-4,9)

C'=(6,5)

The image below shows both triangles in the same grid

8 0
3 years ago
Amelia needs to buy dog food. At the nearest store 3 bags of dog food cost $12.75. How much would Amelia spend on 2 bags of dog
Novosadov [1.4K]

Answer:

$8.5

Step-by-step explanation:

pls give me BRAINLIEST TT

3 0
3 years ago
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