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nirvana33 [79]
3 years ago
9

A mantee surfaced for air 3 times in 120 seconds

Mathematics
1 answer:
Fantom [35]3 years ago
7 0

Answer:

40 seconds

Step-by-step explanation:

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What is the end point and mid point
son4ous [18]
The endpoints are the points which represent or marks the end of a line segment or an interval. So, the endpoints would be the same points given which are ( 5/3, 1 ) and ( 0, 2). The midpoint, on the other hand, is the point that is located halfway through the line segment or the interval. It divides the segment into two parts with equal lengths. We calculate it by the formula,
midpoint = ((x1 + x2) / 2, (y1 + y2) / 2)

We substitute the points given above to the formula as follows:


midpoint = ((5/3 + 0) / 2, (1 + 2) / 2)
midpoint = 5/6 , 3/2

So, the midpoint is located at point 5/6, 3/2.
5 0
3 years ago
If theta is an acute​ angle, solve the equation tangent theta equals four fifths
rusak2 [61]

Answer:

\theta=38.7\degree

Step-by-step explanation:

We want to solve \tan \theta=\frac{4}{5} given that \theta is acute.

We take tangent inverse of both sides to get:

\theta=\tan^{-1}(\frac{4}{5})

Now set your calculator to degree mode and evaluate \tan^{-1}(\frac{4}{5}) to obtain:

\theta=38.6598\degree

To one decimal place, we have;

\theta=38.7\degree

5 0
4 years ago
I need to find the area .
nikklg [1K]

Answer:

104 ft^2

Step-by-step explanation:

area of rectangle = 8 × 10 = 80

area of triangle = 1/2 × 6 × 8 = 24

∴total area = 104 ft^2

5 0
4 years ago
12
Aneli [31]

Answer:

y = 4x + -3

Step-by-step explanation:

1. Write the formula for slope y = mx + b

2. Find a point anywhere on the graph and use rise over run. Find slope by counting how many times you rise up.

3. You rose 4. The variable m is for the slope of a line so fill in the number 4. y = 4x + b

4. The variable b represents the y intercept and the y intercept is where the line crosses over the y axis. So that would be -3

5. Fill in the variable b with -3

6. Finally you would have y = 4x + -3

Hope this is right and hope this helps in the future!

4 0
3 years ago
A radioactive element has a half-life of six days. what is the approximate decay rate of the element after the first day
fenix001 [56]
Decay Rate = ln (2) / Half-Life
Decay Rate = .693147 / 6
Decay Rate = <span> <span> <span> 0.1155245 </span> </span> </span> days

3 0
3 years ago
Read 2 more answers
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