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jek_recluse [69]
3 years ago
9

Machine A and machine B both make car parts.

Mathematics
2 answers:
Vadim26 [7]3 years ago
6 0

Answer:

Machine A=504 parts in 12h

Machine B=564 parts in 10 h

Step-by-step explanation:

please find the attached picture for steps

son4ous [18]3 years ago
5 0

Answer:

Part A is 504

Part B is 564.7

Step-by-step explanation:

Rates given

A=7 parts every 10 minutes

We know its 1 hour for every 60 minutes

12 hr x 60 min\1 hr is 720 minutes

720 min times 7 part divide by 10 minutes is 504 parts

B= 16 parts every 17 minutes

10 hr times 60 min divide by 1 hour is 600 minutes

600 min times 16 parts divide by 17 minutes is 564.7 parts

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Find the number of terms and the degree of this polynomial.
dangina [55]

Answer:

Number of terms:3

Degree:2nd degree

Step-by-step explanation:

-5c^2 +8c +2-3

-5c^2 +8c-1

he 2nd degree is the power of 2

5 0
3 years ago
gavin bought 2 1/2 cubic yards of topsoil for $75 what is the unit rate in cost per cubic yard for the topsoil
Kruka [31]

Answer:

$30

Step-by-step explanation:

Divide the cost ($75) by the yards (2 1/2) to get $30 per yard.

7 0
3 years ago
Read 2 more answers
Find center,foci, and vertices of ellipse (x+3)^2/21+(y-5)^2/25=1
sasho [114]
I don't know if we can find the foci of this ellipse, but we can find the centre and the vertices. First of all, let us state the standard equation of an ellipse. 

(If there is a way to solve for the foci of this ellipse, please let me know! I am learning this stuff currently.) 

\frac{(x-x_{1})^2}{a^2}+ \frac{(y-y_{1})^2}{b^2}=1

Where (x_{1},y_{1}) is the centre of the ellipse. Just by looking at your equation right away, we can tell that the centre of the ellipse is: 

(-3,5)

Now to find the vertices, we must first remember that the vertices of an ellipse are on the major axis. 

The major axis in this case is that of the y-axis. In other words, 

b^2>a^2 

So we know that b=5 from your equation given. The vertices are 5 away from the centre, so we find that the vertices of your ellipse are: 

(-3,10)
 & (-3,0)

I really hope this helped you! (Partially because I spent a lot of time on this lol) 

Sincerely,

~Cam943, Junior Moderator
6 0
3 years ago
A recent poll of 120 randomly selected adults who frequent the local​ farmer's market found that 54 have purchased reusable clot
Olenka [21]

Answer:

95% Confidence interval:  (0.361,0.539)    

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 120

Number of farmers who reusable cloth bags, x = 54

\hat{p} = \dfrac{x}{n} = \dfrac{54}{120} = 0.45

95% Confidence interval:

\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

z_{critical}\text{ at}~\alpha_{0.05} = \pm 1.96

Putting the values, we get:

0.45\pm 1.96(\sqrt{\dfrac{0.45(1-0.45)}{120}}) = 0.45\pm 0.089\\\\=(0.361,0.539)

is the required 95% confidence interval for the proportion of adults who have purchased reusable cloth​ bags.

3 0
3 years ago
How can I simplify b x b x b x b
ycow [4]

Answer:

b⁴

Step-by-step explanation:

b x b x b x b

b² x b²

b⁴

4 0
2 years ago
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