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3 years ago

13х - 7y + 4х Please explain and awnser it’s for a test!

Mathematics

1 answer:

dangina [55]3 years ago

7 0

Answer:

17x-7y

Step-by-step explanation:

Im assuming you need to simplify it.

combine 13x and 4x

17x-7y

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Calvin took his friends to a movie for his birthday the movie ticket cost 12 per person he spent less than 180

jarptica [38.1K]

180/12 = 15

so if he spent less than 180 at most 14 people, including himself went.

4 0

4 years ago

The revenue function for a bicycle shop is given by R(x)=x⋅p(x) dollars where x is the number of units sold and p(x)=200−0.4x is

amid [387]

Answer:

maximum revenue is 25000

Step-by-step explanation:

The revenue function for a bicycle shop is given by R(x)=x⋅p(x)

Given $p(x)= 200-0.4x$

$R(x)=x \cdot p(x)$

Plug in p(x) in R(x)

$R(x)=x \cdot 200-0.4x$

$R(x)=200x-0.4x^2$

Now find out the vertex using formula x=-b/2a

a= -0.4, b=200

$x=\frac{-b}{2a} =\frac{-200}{2(-.4)} =250$

Plug in 250 for x in R(x)

$R(x)=200x-0.4x^2$

$R(x)=200(250)-0.4(250)^2=25000$

So maximum revenue is 25000

6 0

3 years ago

A(t) = (t – k)(t - 3)(t - 6)(t + 3) is a polynomial function of t, where k is a constant.

mr Goodwill [35]

the absolute value of the product of the zeros of a is $-108$ .

<u>Step-by-step explanation:</u>

Here we have , $a(t) = (t - k)(t - 3)(t - 6)(t + 3)$ is a polynomial function of t, where k is a constant. Given that a(2) = 0 . We need to find the absolute value of the product of the zeros of a . Let's find out:

Equation every factor of a(t) to zero we get:

⇒ $a(t) = (t - k)(t - 3)(t - 6)(t + 3) = 0$

⇒ $(t - k) =0\\(t - 3)=0\\(t - 6)=0\\(t + 3) = 0$

⇒ $t =k\\t =3\\t = 6\\t =- 3$

But , t=2 So , $k=2$ . Now , the absolute value of the product of the zeros of a is :

⇒ $k(3)(6)(-3)$

⇒ $2(3)(6)(-3)$

⇒ $-108$

Therefore, the absolute value of the product of the zeros of a is $-108$ .

4 0

3 years ago

Estimate each quotient by rounding the dividend and the divisor to the largest place value. 22528 divided by 98

aleksandr82 [10.1K]

Answer:225.28

Step-by-step explanation: 98 become 100 bit 22528 stays the same then you subtract.

4 0

4 years ago

chef leo will use a total of 6 1/4 cups of sugar to make 3 chocolate cakes. if each cake recipe requires the same amount of suga

Feliz [49]

a. because to divide 6 1/4 and 3 you need to make the improper fraction a mixed number so the equation is 25/4 / 3/1 then you get the recipricol of 3 witch is 1/3 then you multiply 1/3 x 25/4 whitch is 25/12=2 1/12

7 0

4 years ago