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Shalnov [3]
2 years ago
15

Plssss help me my test is due is 30 minutes.

Mathematics
2 answers:
Anon25 [30]2 years ago
6 0

Answer:i think its 1.75

Step-by-step explanation

RUDIKE [14]2 years ago
3 0

Answer: 1.5

Step-by-step explanation:

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Which choice is equivalent to the product below when x is greater than or equal to 0
QveST [7]

Answer: I believe it is C.

Step-by-step explanation: Because if you take 4 x 20 = 80

If  I am wrong sorry.

7 0
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The bedroom and office in the diagrams below are similar rectangles. The walls on the left sides in the diagram are proportional
kari74 [83]

Answer:

D. 16.8

Step-by-step explanation:

7 0
2 years ago
1.<br> A. 3.75<br> B. 1.5<br> C. 3<br> D. 4.5<br><br> 2.<br> A. 30<br> B. 16<br> C. 8<br> D. 15
Gnom [1K]

1)

b: 3.75 since it is half of the segment that measures 7.5, this is proven because the line in the middle is a bisector of the top and bottom line indication that both half measure the same; 3.75

2) 15 not sure why

4 0
3 years ago
I really don’t get this at all. kinda need help
rewona [7]
Same . It’s not giving me a lot of information!!
5 0
3 years ago
. At a clothing store, 12 people purchased blue sweaters, 8 purchased green sweaters, 4 purchased gray sweaters, and 7 purchased
DedPeter [7]

Answer:

The probability that they purchased a green or a gray sweater is \frac{12}{31}

Step-by-step explanation:

Probability is the greater or lesser possibility of a certain event occurring. In other words, probability establishes a relationship between the number of favorable events and the total number of possible events. Then, the probability of any event A is defined as the quotient between the number of favorable cases (number of cases in which event A may or may not occur) and the total number of possible cases. This is called Laplace's Law.

P(A)=\frac{number of favorable cases}{number of possible cases}

The addition rule is used when you want to know the probability that 2 or more events will occur. The addition rule or addition rule states that if we have an event A and an event B, the probability of event A or event B occurring is calculated as follows:

P(A∪B)= P(A) + P(B) - P(A∩B)

Where:

P (A): probability of event A occurring.

P (B): probability that event B occurs.

P (A⋃B): probability that event A or event B occurs.

P (A⋂B): probability of event A and event B occurring at the same time.

Mutually exclusive events are things that cannot happen at the same time. Then P (A⋂B) = 0. So, P(A∪B)= P(A) + P(B)

In this case, being:

  • P(A)= the probability that they purchased a green sweater
  • P(B)= the probability that they purchased a gray sweater
  • Mutually exclusive events

You know:

  • 8 purchased green sweaters
  • 4 purchased gray sweaters
  • number of possible cases= 12 + 8 + 4+ 7= 21

So:

  • P(A)=\frac{8}{31}
  • P(B)=\frac{4}{31}
  • P(A⋂B) = 0

Then:

P(A∪B)= P(A) + P(B)

P(A∪B)= \frac{8}{31}+ \frac{4}{31}

P(A∪B)= \frac{12}{31}

<u><em>The probability that they purchased a green or a gray sweater is </em></u>\frac{12}{31}<u><em></em></u>

5 0
3 years ago
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