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IRINA_888 [86]
3 years ago
9

Can someone help me ‼️

Mathematics
1 answer:
vazorg [7]3 years ago
8 0

Answer:

A) 6

Step-by-step explanation:

The angle 12x is the same angle as the one below 108 degrees. They are supplementary angles so they add up to 180 degrees. 180-108 = 72, 12x = 72 divide each side by 12, x = 6 :)

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Can someone please help me out? I'd really appreciate it.
taurus [48]

Answer:

The scaling factor is 4.

Step-by-step explanation:

To find the scaling factor from A to B, we must know that these are similar triangles.  Since this is not stated in the problem, we will assume these are similar triangles.

Similar triangles simply have the same scaling ratio, allowing for any size triangle to be created with the same relative dimensions.  With this in mind, let's check to see the multiple of each side by simply taking the sides of the triangle B divided by the sides of triangle A.

40 / 10 = 4

44 / 11 = 4

72 / 18 = 4

Notice how each of the sides from triangle B to triangle A has the same multiple, 4.  This tells us that the scale from A to B is 4.

Hence, the scaling factor is 4.

Cheers.

6 0
4 years ago
Read 2 more answers
WILL GIVE BRAINLIEST
Vedmedyk [2.9K]
The answer is A
1 5/6 *12= 22
8 0
4 years ago
Read 2 more answers
Ms. Lee wants to know what kinds of things her students do prepare for her tests. Ms. Lee placed the names of her students into
Darina [25.2K]

Answers:

  • a) The sample is the set of students Ms. Lee selects from the box.
  • b) The population is the set of all students in Ms. Lee's classroom.

=============================================

Explanation:

The first sentence tells us what the population is: it's the set of all her students. She's not concerned with any other students in any other classroom. So her "universe", so to speak, is solely focused on this classroom only. Once the population is set up, a sample of it would be a subset of the population.

If set A is a subset of set B, then everything in A is also in B, but not vice versa. For example, the set of humans is a subset of the set of mammals because all humans are mammals. However, a dog is a mammal but not a human. This shows that A is a subset of B, but not the other way around. In this example, A = humans and B = mammals.

Going back to the classroom problem, we have A = sample and B = population. If Ms. Lee has 30 students, and she randomly selects 5 of them, then those 30 students make up set B and the 5 selected make up set A. Selecting the names randomly should generate an unbiased sample. This sample should represent the population overall. If the population is small enough, the teacher could do a census and not need a sample. Though there may be scenarios that it's still effective to draw a sample.

8 0
3 years ago
Heidi is preparing for the national gymnastics competition. the table below shows the number of hours Heidi spent preparing for
galina1969 [7]
To answer the problem above, we first need to know the difference in hours.
from month 1 to 2 the difference in hour is 1.5.
Month 2 to 3 =  3.5 to 5 = 1.5
Month 3 to 4 = 5 to 6.5 = 1.5
Month 4 to 5 = 6.5 to 8 = 1.5

The answer is C. Linearly, because the table shows that hours increase by an equal factor for an equal increase in months. which is 1.5 hours per month.
4 0
4 years ago
Read 2 more answers
Please help me i need it fast
aev [14]

Answer:

20x^3/4x7

20/4x^4

5/x^4

Step-by-step explanation:

7 0
3 years ago
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