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kupik [55]
3 years ago
9

HELP ASAP I NEED THIS DONE IM IN A TIMED TEST (Find the area)

Mathematics
1 answer:
Anastasy [175]3 years ago
8 0

Answer:

165

Step-by-step explanation:

base x base x height

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Find cotθ if tanθ = 2 and 180° &lt; θ &lt; 270° <br> Plz help
Musya8 [376]

Answer:

1/2

Step-by-step explanation:

cotangent is the reciprocal of a tangent

tanθ = 2

cotθ = 1/2

6 0
2 years ago
Which statements about the graph of the function f(x) = –x2 – 4x + 2 are true? Check all that apply. The domain is {x|x ≤ –2}. T
Leto [7]
The graph of the function f(x) =-x^2-4x + 2 is parabola with branches going down in the negative direction of y-axis. 
The vertex of parabola has coordinates:

x_v=\dfrac{-(-4)}{2\cdot(-1)}=-2, \\ y_v=-(-2)^2-4\cdot (-2)+2=-4+8+2=6

Then you can conclude that all x are possible, that means that the dimain is x\in (-\infty,\infty) and the maximum value of y is at the vertex, then the range is (-\infty,6].The function is increasing for x<-2 and decreasing for x>-2 (since vertex is the maximum point).
When x=0, y=2. 
Hence,
<span>The domain is {x|x ≤ –2} - false.
</span>
<span>The range is {y|y ≤ 6} - true.
</span>
<span>The function is increasing over the interval (–∞ , –2) - true.
</span>
<span>The function is decreasing over the interval (−4, ∞) - false.
</span>
<span>The function has a positive y-intercept - true.</span>









8 0
3 years ago
Read 2 more answers
3 Caleb claims that when you multiply a number by 10, you can just write a 0 at the right end of the number. Caleb gives the exa
devlian [24]

Answer:

They are both correct

Step-by-step explanation:

It's interpretation of the concept. In common practice multiplying by 10 means you add a zero and that's what we teach 10 year olds. But what does adding a zero mean? It means adding a place value and that's what you learn when you are

So in both examples just add a decimal:

2.0 x 10 = 20.

0.2 x 10 = 2.0

In conclusion, it depends on the level of precision required in the discussion and the level of maturity as to who is correct in their examples. If you are teaching 3rd graders math, by all means you add a zero. If you are discussing physics you are shifting over a place value.

8 0
3 years ago
9. Which pair of equations below represent perpendicular lines?
natima [27]
A is correct. ...................................................
8 0
3 years ago
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out of 50 6th graders , 22 cheeseburgers as their favorite food, 13 chose mac and cheese and the rest chose pizza. What percent
sveticcg [70]
There favrite food is pizza
5 0
3 years ago
Read 2 more answers
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