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3 years ago

Can someone help pls

Mathematics

1 answer:

zheka24 [161]3 years ago

3 0

Answer: V = 1512 cm3

Step-by-step explanation:

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(04.02 MC)

kvasek [131]

Answer:y=negative 1 over 3x +2

Step-by-step explanation:

6 0

3 years ago

The profit from a business is

GuDViN [60]

First of all we will understand the question!!

The question is saying that you are given a function and you have to find the value of x which will give the maximum profit... Lets solve it by finding the extrema using the vertex

 $\rm \: p(x) = - 5 {x}^{2} + 30x + 8$ 

Identify the coefficients a and b of the quadratic function

 $\rm \: p(x) = { - 5x}^{2} + 30x + 8 \\ \rm \: a = - 5 \: and \: b \: = 30$ 

Since a<0, the function has the maximum value at x, calculated by substituting a and b into x=-b/2a

$\rm \: x = \frac{30}{ 2 \times (- 5)}$

Solve the equation for x

$\rm \: x = 3$

The maximum of the quadratic function is at x=3

3 0

2 years ago

One number is five more than another and their sum is three less than three times the smaller

soldier1979 [14.2K]

X = y + 5
(x + y) = 3y - 3

y + 5 + y = 3y - 3
2y + 5 = 3y - 3
5 + 3 = 3y - 2y
8 = y

x = y + 5
x = 8 + 5
x = 13

ur numbers are : 8 and 13

5 0

3 years ago

Read 2 more answers

Please help! 5x^2 - 3x - 2 = 0 Solve using the zero-factor property.

Alex

Answer:

x = -2/5

x = 1

Step-by-step explanation:

5x² - 3x - 2 = 0

(5x + 2)(x - 1) = 0

⇒ 5x + 2 = 0

⇒ 5x = -2

⇒ x = -2/5

⇒ x - 1 = 0

⇒ x = 1

7 0

3 years ago

Can a triangle have side lengths 4, 4, 7? 1.no 2. Yes 3. not enough information

Marina CMI [18]

Yes! The lengths of each side must be less than the sum of the other two lengths. It looks like this:
4+4>7
7+4>4
4+7>4

8 0

3 years ago