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marysya [2.9K]
2 years ago
12

Help A) 11 B) 9 C) -12 D) -11

Mathematics
1 answer:
ryzh [129]2 years ago
8 0
9 is real answer hope you’re doing great
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Name this triangle by its sides and angles. This is a(n) ____________________ triangle.
snow_tiger [21]

right triangle

Hope this helps! :)

8 0
3 years ago
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Find the circumference of a circle whose diameter is 16 mm
Zarrin [17]
I hope this helps you


circumference =2pi.r


circumference =2.pi.16


circumference =32pi
6 0
3 years ago
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Brad and Angelina can mow their yard together with two lawn mowers in 30 min. When brad works alone it takes him 45 min. How lon
Kisachek [45]

Answer:

Wouldn't it be 45 minutes as well?

Step-by-step explanation:

If you think about it in a real life scenario, if one person does the job and then another person does the same job at the same speed wouldn't it be the same time? But if its not i think it would be 15 minutes because 45-30 = 15

6 0
3 years ago
The rectangular sides are 24 feet by 40 feet, 40 feet by 15 feet, and 40 feet by 15 feet. The triangular sides have a base of 24
olga55 [171]

Answer:

The answer would be 28,800

Step-by-step explanation:

5 0
4 years ago
Find the interval in which the function is positive.
blsea [12.9K]

Answer:

  (b)  I, III

Step-by-step explanation:

The correct answer can be chosen based on your knowledge of the shape of the graph of f(x).

<h3>General shape</h3>

The leading coefficient of this quadratic function being positive tells you the graph will be a parabola that opens upward. The left branch of the parabola will extend to positive infinity, as will the right branch.

If there are x-intercepts, the x-values between those will be where the graph has crossed the x-axis and function values are negative.

<h3>Specific shape</h3>

The answer choices suggest that x=2 and x=5 are x-intercepts of the function's graph. These can be checked, if you like, by evaluating f(2) and f(5).

  f(2) = 2² -7·2 +10 = 4 -14 +10 = 0

  f(5) = 5² -7·5 +10 = 25 -35 +10 = 0

This means the function will be positive for x < 2 and for x > 5. These intervals are described by I and III.

7 0
2 years ago
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