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Strike441 [17]
2 years ago
14

What is the sum of 52.07 and 8.43? (Write the answer as a decimal to the nearest tenth.)

Mathematics
1 answer:
inn [45]2 years ago
7 0
60.5, rounded to the nearest tenth should be 61!!
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Suppose thatthe monthly cost, in dollars, of producing x chairs is C(x) =0.001x3 + 0.07x2 + 19x +700, and currently 25chairs are
aev [14]

Answer:

Given the cost function of chair produced monthly as

C(x) =0.001x³ + 0.07x² + 19x +700

where x =no of chairs produced

a) Current monthly cost?

For x=25, C = 0.001 (25)³ + 0.07(25)² + 19(25) +700

  C = 15.625+43.75+475+700

  C = $1234.38

b) additional cost of the increasing production to 26 chairs monthly?

   that is C(26) - C(25) = ?

For C(26) = 0.001 (26)³ + 0.07(26)² + 19(26) +700

  C(26) =$1258.89

C(26) - C(25) = $24.52

c) the marginal cost when x=25?

 This is dC/dx = 0.003x² + 0.14x +19

Marginal Cost at x =25,  =  0.003(25)² + 0.14(25) +19

= $24.375/chair

d) To estimate the difference in cost between producing 25 and 27 chairs per month?

we will find dC/dx(27)?

Marginal Cost at x =27,  =  0.003(27)² + 0.14(27) +19

  C(27) = $81.83/chair

For increase in chairs per month = 2,

The difference in cost between C(25) and C(27), = ($81.83 - $24.375) x 2 =$114.91

e)  To predict C(27) = ?

From (d) to predict this, it means for a single chair, we have the cost as $57.454/chair

so for 27 chairs, the cost will be $57.454 x 27 = $1551.26/month

4 0
3 years ago
In this right triangle LMN L and M are complentary angles and sin (L) is 19\20 what is cos (M)
Zolol [24]
In any right triangle ABC, with right angle A we have the following:

\sin(\angle B)=\cos(\angle C)

and

\sin(\angle C)=\cos(\angle B).


This means that the sine of a non 90° angle, is equal to the cosine of its complementary angle.


Thus, \displaystyle{ \cos(\angle M)=\sin (\angle L)= \frac{19}{20}.


(Take a look at the picture. From the definition of trigonometric ratios in right triangles we have :
\displaystyle { \sin(\angle L)= \frac{opposite \ side}{hypotenuse} = \frac{19}{20}.
and
 \displaystyle { \cos(\angle M)= \frac{adjacent \ side}{hypotenuse} = \frac{19}{20}.)

Answer: 19/20

5 0
3 years ago
Read 2 more answers
PLs help asap :( i have no idea how to do sigma notation
MAVERICK [17]

The correct answer is C

Sigma Notation is when we take all of the whole numbers between the starting point (which can be found as the number under the sigma sign) and the end number (which can be found above the sigma sign). Therefore, we will add together all of the values of 3k + 2 for when k is equal to all of the numbers between 2 and 7. So, let's evaluate each one first.

When k = 2

3(2) + 2 = 8

When k = 3

3(3) + 2 = 11

When k = 4

3(4) + 2 = 14

When k = 5

3(5) + 2 = 17

When k = 6

3(6) + 2 = 20

When k = 7

3(7) + 2 = 23

So we know we have the following.

8 + 11 + 14 + 17 + 20 + 23

Now for the number after the comma, we are just looking for the answer of them all added together. So the final answer should be

8 + 11 + 14 + 17 + 20 + 23, 93

7 0
3 years ago
Graph the following inequality. Then click to show the correct graph.<br><br> 3x - 2y ≥ 6
Lubov Fominskaja [6]
I think the answer would be the first picture
3 0
3 years ago
Can anyone please help me with this god bless you and have a amazing day!!!
sweet-ann [11.9K]

Answer:

1. B

2. C

Step-by-step explanation:

SORRY IF YOU GETT IT WRONG JUST GOOING OFF MY HEAD

4 0
2 years ago
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