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Anna11 [10]
3 years ago
11

Please help me with this I’ll add you and give brainliest

Mathematics
1 answer:
Shkiper50 [21]3 years ago
8 0

Answer:

:)

Step-by-step explanation:

#11 is 78 degrees

#12 is 12.81

#13 is 75.4

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I can't get to get this right can you please help me​
monitta

Answer:

(-7,4]\text{ or }\{x|-7

Step-by-step explanation:

The domain is the span of x-values covered by the function.

From the graph, we can see that the graph covers all the x-values from x=-7 to x=4.

However, note that closed and open circles. There is an open circle at x=-7, which means that the domain excludes x=-7. However, the circle at x=4 is closed, meaning it is included in the domain.

Therefore, the domain is, in interval notation:

(-7,4]

We use parentheses on the left because we do not include -7. And we use brackets on the right because we <em>do </em>include the 4.

And in set notation, this is:

\{x|-7

7 0
2 years ago
Read 2 more answers
Which expression is equivalent to 2 (14x-37+28x+12.2-5y-17.5)?
ziro4ka [17]

Answer:

A. 84x - 16y - 10.6

Explanation:

\sf \rightarrow 2(14x-3y+28x+12.2-5y-17.5)

\sf \rightarrow 2 (42x-8y-5.3)

apply distributive method: a(b + c) = ab + ac

\sf \rightarrow 2 (42x) -2(8y)-2(5.3)

\sf \rightarrow 84x -16y-10.6

7 0
1 year ago
A hot-air balloon is released at ground level, and it rises into the air at a constant rate. After 5 seconds the height of the b
mr_godi [17]

The constant rate = 20 ft / 5 seconds = 4 feet per second

Find the chart that shows an increase of 4 feet for every second the balloon travels.

3 0
2 years ago
Solve the equation for a.<br><br> K=4a+9ab
ale4655 [162]

Answer:

a= k/4+9b

Step-by-step explanation:

hope this helps, if not let me know!

3 0
2 years ago
What does it mean to square a negative number​
Andrej [43]

Answer:

This is because to square a number just means to multiply it by itself. For example, (-2) squared is (-2)(-2) = 4. Note that this is positive because when you multiply two negative numbers you get a positive result.

5 0
3 years ago
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