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3 years ago

Help Asap!!!!!! Brainliest!

Mathematics

1 answer:

Nastasia [14]3 years ago

6 0

Answer:

f(-2.75)=-1

Step-by-step explanation:

Here we are given a Greatest Integer Function . The characteristic of this function is that it when operated , gives you the greatest integer it has near to it.

Hence if we have any greatest integer function f(x)=[x] , for x = -2.75

[-2.75]=-2 , as -the greatest integer near to -2.75 is -2 as -3<-2

Now coming back to our problem, our function is

f(x)=[x]+1

Hence for x=-2.75

f(x)=[-2.75]+1

as we discussed above [-2.75]=-2

Hence

f(-2.75)=-2+1

f(-2.75)=-1

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A number cube is rolled what is the probability that the result is a number greater than five?

ki77a [65]

Answer:

The answer is 1/3

Step-by-step explanation:

Let the events of getting the no. greater than 4 be (>4).

Then,

n(s) = 6

n(>4) = 2

P(>4) = n(>4)/n(s)

 =2/6

=1/3

6 0

2 years ago

A firm manufactures a commodity at two different factories. The total cost of manufacturing depends on the quantities x and y su

SVETLANKA909090 [29]

Answer:

Each factory should supply 100 units

x = 100 units

y = 100 units

Step-by-step explanation:

Since the total production must be 200 units, then x + y = 200.

The cost function can be rewritten as a function of 'x' as follows:

$y=200-x\\C=f(x,y) =2x^2+xy+2y^2+500\\C= f(x) = 2x^2+x(200-x)+2(200-x)^2+500\\C= f(x) = x^2+200x+500+2(x^2-400x+40,000)\\C= f(x) = 3x^2-600x+80,500$

The value of 'x' for which the derivate of the cost function is zero, is the production level that minimizes cost:

$C= f(x) = 3x^2-600x+80,500\\C'= f'(x)=0 = 6x-600\\x=100\ units\\y = 200 -x = 100\ units$

In order to minimize production costs, each factory should supply 100 units

7 0

3 years ago

Please guys, help with this 1/√16+1/4

irga5000 [103]

Answer:

1/2

Step-by-step explanation:

sqrt(16)=4 then 1/4+1/4=2/4=1/2

5 0

3 years ago

Read 2 more answers

Y = 4x+1 3x + 2y = 13

Alika [10]

we get, x = 1 and y = 5

Step-by-step explanation:

from first equation we get,

y = 4x +1

then,

putting the value of y in second equation :-

=》3x + 2y = 13

=》3x + 2 (4x + 1) = 13

=》3x + 8x + 2 = 13

=》11x = 13 - 2

=》11x = 11

=》 x = 11 / 11

=》 x = 1

putting the value of x in equation 1

=》y = 4x + 1

=》y = (4 × 1) + 1

=》y = 4 + 1

=》y = 5

7 0

3 years ago

Read 2 more answers

Given m∠2 = 80°, m∠1 = 4 · m∠3, and ∠4 ≅ ∠ 8, find m∠1, m∠3, m∠4, m∠5, m∠6, m∠7, and m∠8.

jeyben [28]

Answer:

m∠1= m∠5= 100°, m∠2= m∠6= 80°, m∠4=m∠8= 155°, m∠3= m∠7= 25°

Step-by-step explanation:

Supposing ∠1,∠2 make up a straight angle.Let ∠1, ∠5 and ∠2 and ∠6 be corresponding angles on a transversal drawn on two parallel lines. ∠3,∠4 and∠5 ∠6 be interior angles

If m ∠= 80° them m∠ 1= 100°

As ∠1= 4. m∠3 therefore

100°= 4.m∠3

m∠3= 100/4= 25°

Again supposing m∠3+ m∠4= 180°

m∠4= 180°- 25°= 155°

m∠4 =m∠8= 155°

m∠8 + m∠7= 180°

m∠7= 180°- 155°= 25°

Let ∠5 and ∠1 be corresponding angles so m∠5= m∠1= 100°

and m∠6= m∠2= 80°

5 0

3 years ago