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3 years ago

12

If the cube is divided into two equal parts by a plane parallel to the face defined by vertices 2, 3, 6, and 7, what will be the

area of the cross-section?

1 answer:

notsponge [240]3 years ago

5 0

The area of the cross-section is 169 sq. cm.

That is the correct answer to this problem

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Which inequality describes the graph below?

Ainat [17]

Answer:

X>_1 and x<_7

Step-by-step explanation:

3 0

3 years ago

The concentration, in parts per million, of a type of antibiotic in a human's bloodstream after h hours can be modeled by the po

saveliy_v [14]

Answer:

$C(3)=17.69\ ppm$

Step-by-step explanation:

Given:

Given polynomial function is.

$C(h)=-0.09h^{2} +3.5h+8$

Hours $h=3$

We need to find the concentration of the antibiotic after 3 hours.

Solution:

Rewrite the given polynomial function as.

$C(h)=-0.09h^{2} +3.5h+8$

Substitute $h=3$ in given polynomial function.

$C(3)=-0.09(3)^{2} +3.5\times 3+8$

$C(3)=-0.09\times 9+10.5+8$

$C(3)=-0.81+10.5+8$

$C(3)=-0.81+18.5$

$C(3)=17.69\ ppm$

Therefore, the concentration of the antibiotic after 3 hours $C(3)=17.69\ ppm$ .

8 0

4 years ago

The number 20 is no less than the difference of 4 times a number c and 8.

sammy [17]

Answer:

20 >= 4*c - 8

Step-by-step explanation:

5 0

3 years ago

A store pays $399 for a waterheater. The store marks up the price by 42% . What is the amount of the mark-up?

Lelu [443]

Answer:

Step-by-step explanation:

399*42%= 167.58 the mark up amount

399+167.50=566.50 total

3 0

3 years ago

What is the equation, in standard form, of a parabola that contains the following points?

suter [353]

Answer:

B

Step-by-step explanation:

If you put C, you will get it wrong. B is the correct answer 100%. I think she guessed her way to ace or just commented.

The equation of the parbola is B.

5 0

3 years ago