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Marysya12 [62]
3 years ago
9

Four friends went scuba diving. According to the following statements, who spotted sea life at the fastest rate?

Mathematics
1 answer:
timama [110]3 years ago
3 0
Lance:  4/6 = 2/3 = 0.66 creatures every minute 

Jasmine:  6/8 = 3/4 = 0.75 creatures every minute

Robert:  11/15 = 2.2/3 = 0.73 creatures every minute

Shilpa:  8/10 = 0.8 creatures per minute

Shilpa spotted sea life at the fastest rate (0.8 creatures every 1 minute)
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What are the hypotheses for testing to see if a correlation is statistically significant?
Andrew [12]

Answer:

Step-by-step explanation:

For testing of significance of correlation coefficient denoted by r, we create hypotheses in three ways

They are one tailed, two tailed.  One tailed can be stated as right tailed and also left tailed.

The null hypothesis would normally be as r=0

Verbally we can say this there is no association between the dependent and independent variable (linear)

Against this alternate hypothesis is created as

either r not equal to 0

or r>0 or r<0

If r not equal to 0, we say two tailed hypothesis test

If r>0 is alternate hypothesis, it is right tailed test

If r<0 is alternate hypothesis, then it is left tailed test.

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3 years ago
Área of panel 5ft by 16ft
miv72 [106K]
The area of the panel is 80ft^2
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3 years ago
Find the length of the segment indicated. Round your answer to the nearest tenth if necessary.
guajiro [1.7K]

Answer:

<em>Length of x ⇒ ( About ) 11.5; Option C</em>

Step-by-step explanation:

<em>~ Let us plan this question step-by-step. We know that the line segment with length 13.1 is a radii to the circle, as well as a hypotenuse to a right triangle. Respectively the hypotenuse of another triangle is a hypotenuse as well. By radii ≅, these two part of these two triangles are ≅ ~</em>

1. If these two parts are ≅, the triangle with leg x has a hypotenuse of 13.1 as well ( through ≅ ). This would mean that Pythagorean theorem is applicable for this triangle, as to solve for line segment x.

2. By Pythagorean Theorem ⇒

6.2^2 + x^2 = 13.1^2,

38.44 + x^2 = 171.61,

x^2 = 133.17

<em>Length of x ⇒ ( About ) 11.5</em>

7 0
3 years ago
How can I solve prove that questions in trigonometry.​
madam [21]

Step-by-step explanation:

Tip 1) Always Start from the More Complex Side.

Tip 2) Express everything into Sine and Cosine.

Tip 3) Combine Terms into a Single Fraction.

Tip 4) Use Pythagorean Identities to transform between sin²x and cos²x.

Tip 5) Know when to Apply Double Angle Formula (DAF)

I am also from nepal...very happy to see you..

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2 years ago
A cube has sides of length 5 cm.
worty [1.4K]
5 x 5 = 25
25 x 6 = 150

150cm^2
7 0
3 years ago
Read 2 more answers
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