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earnstyle [38]
3 years ago
7

Please help me don't understand :(

Mathematics
1 answer:
qaws [65]3 years ago
8 0

Answer:

I think it's the last one. Sorry if I'm wrong

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Find the length of a square whose diagonal is 15cm​
Vladimir [108]
2a^2 = 225
So a^2 = 225/2
4 0
2 years ago
A machine produces defective parts with three different probabilities depending on its state of repair. If the machine is in goo
Zina [86]

Answer:

Step-by-step explanation:

Given that a machine produces defective parts with three different probabilities depending on its state of repair.

condition             Good order         Wearing down               Needs main   Total

Prob                       0.8                            0.1                                   0.1              1

Defective               0.02                          0.1                                   0.3

Joint prob              0.016                         0.01                                0.03        0.056

a) 0.016

b) total = 0.056

c) If not defective from needs maintenance

Prob for not defective = 0.8*0.98+0.1*0.9+0.1*0.7\\=0.784+0.09+0.07\\=0.944

From machine that needs maintenance = 0.07

So reqd prob = \frac{0.07}{0.944} \\=0.0741

6 0
3 years ago
A pizza shop sold 150 pizzas the first week, 300 the second week, and 450 the third week. If this same pattern continues, how ma
damaskus [11]

Answer:

1,200

Step-by-step explanation:

5 0
3 years ago
Rebecca collected data from a random sample of 1200 homeowners in her state asking whether or not they use electric heat. Based
larisa [96]

Hi,

The answer is c. The sample is biased.

This is because the sample is taken on a single state, an Rebecca reports a statistic about the nation. Her data contains information only of her state. If she lives in a very cold state, there is probably more homeowners using electric heat than in a hot state.

6 0
3 years ago
Pleasee answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!
Vera_Pavlovna [14]

Answer:3.6

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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