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suter [353]
3 years ago
10

Special right triangles

Mathematics
2 answers:
fiasKO [112]3 years ago
8 0

Answer:

c

Step-by-step explanation:

Anarel [89]3 years ago
6 0

Answer:

D

Step-by-step explanation:

Using the cosine ratio in the right triangle and the exact value

cos30° = \frac{\sqrt{3} }{2} , then

cos30° = \frac{adjacent}{hypotenuse} = \frac{AY}{RY} = \frac{AY}{48} = \frac{\sqrt{3} }{2} ( cross- multiply )

2AY = 48\sqrt{3} ( divide both sides by 2 )

AY = 24\sqrt{3} → D

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A biology student wants to determine if using a fertilizer would help promote the growth of new babies in spider plants. The stu
sveticcg [70]

Answer:

Randomized block design

Step-by-step explanation:

From the question, we can see the following:

- There are 30 plants of each variety. This means that they are divided into variety subgroups which we will call blocks.

- Now, we are told each plant in each block all are potted in the same amount and type of soil, given the same amount of water, and exposed to the same amount of light. This means that each plant in each block is assigned a treatment condition.

- The procedure is repeated by subjecting each plant one after the other in teach Block to different treatments and this will reduce variability.

Looking at all the statements above, it is clear that this is a randomized block design because a randomized block design is when the experimenter/researcher divides members/participants into subgroups called blocks in a manner that the variability within the blocks is less than the variability between the blocks. Thereafter, the participants within each block will now be randomly assigned to treatment conditions.

7 0
3 years ago
Read 2 more answers
5x + y = 6 5x + 3y = -4 The y-coordinate of the solution to the system shown is ___.
8_murik_8 [283]
Subtract these 2 equations,

5x-5x +3y-y = -4-6

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y = -5

-5 is your answer.
6 0
3 years ago
I need the answer fast pls
igomit [66]

Answer:

its a statistical question

Step-by-step explanation:

Statistics is a branch of mathematics that deals with collecting, analyzing, and interpreting information

6 0
2 years ago
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What is the value of x so that the line segment with endpoints W(x, −2) and X(5, −4) is parallel to the line segment with endpoi
professor190 [17]
Uhhhh I don't think that the correct answer.
First, find the gradient of the line segment.
Gradient = Rise/Run = (2-6)/(2-5) = 4/3.
Since the other line segment is parallel to this line segment, their gradients are the same.
That means (-2+4)/(x-5) = 4/3.
2/(x-5) = 4/3
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7 0
3 years ago
You ride a bicycle at a speed of 18 miles per hour. I am 3 miles behind my friend. My friend rides a bicycle at a speed of 12 mi
anzhelika [568]

Answer:

i think 9 but 6 could also be right

Step-by-step explanation:

18-12=6------18-3=15-------15-3=12-----------12-3=9

3 0
3 years ago
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