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3 years ago

4

Mathematics

1 answer:

Vitek1552 [10]3 years ago

6 0

Answer: 48

Step-by-step explanation:

12x4=48

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If a publisher of nontechnical books takes great pains to ensure that its books are free of typos, so that the probability of an

Troyanec [42]

Answer:

(a) 0.2707

(b) 0.8576

Step-by-step explanation:

5 0

3 years ago

The maximum value of the function: f(x)= -5 x ^2 +30x-200 is?

VARVARA [1.3K]

Answer:

$\displaystyle - 155$

Step-by-step explanation:

we are given a quadratic function

$\displaystyle f(x) = - 5 {x}^{2} + 30x - 200$

we want to figure out the minimum value of the function

to do so we need to figure out the minimum value of x in the case we can consider the following formula:

$\displaystyle x _{ \rm min} = \frac{ - b}{2a}$

the given function is in the standard form i.e

$\displaystyle f(x) = a {x}^{2} + bx + c$

so we acquire:

b=30
a=-5

thus substitute:

$\displaystyle x _{ \rm min} = \frac{ - 30}{2. - 5}$

simplify multiplication:

$\displaystyle x _{ \rm min} = \frac{ - 30}{ - 10}$

simply division:

$\displaystyle x _{ \rm min} = 3$

plug in the value of minimum x to the given function:

$\displaystyle f (3)= - 5 {(3)}^{2} + 30.3 - 200$

simplify square:

$\displaystyle f (3)= - 5 {(9)}^{} + 30.3 - 200$

simplify multiplication:

$\displaystyle f (3)= - 45 + 90- 200$

simplify:

$\displaystyle f (3)= - 155$

hence,

the minimum value of the function is -155

5 0

3 years ago

If f(x) = 3x2 - 2x + 1, then find f(0)

MissTica

f (0) = 3.(0)(0) - 3.(0)

= 0

3 0

3 years ago

Which ones arent parrellograms?

MAVERICK [17]

Answer:

Hi, There! I'm Here to help :)

<em>I would Say the 1st Section On the Right Meaning the 1st Block on the right.</em>

<em />

Step-by-step explanation:

A parallelogram is a quadrilateral with opposite sides parallel (and therefore opposite angles equal)

.Few examples of a parallelogram are rhombus, rectangle, and square.

6 0

2 years ago

Find the value of 50 5x + 15<br>

lukranit [14]

7
5 times 7
equals 35
then you add 15
and get 50

3 0

2 years ago