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tamaranim1 [39]
3 years ago
14

Select all the statements that are true in all cases.

Mathematics
1 answer:
tatuchka [14]3 years ago
5 0

Answer:

The expressions x + x and 2x are equal.

the \: expressions \: (x)(x) \: and \:  {x}^{2}  \: are \: equal

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Any one have the rest of the Surface Area and Volume Unit Test ??? please !!
kotykmax [81]

Answer:

Second option is the right choice.

Step-by-step explanation:

Volume=2\pi rh+2\pi r^2\\\\V=2\left(3.14\right)\left(13\right)\left(14\right)+2\left(3.14\right)\left(13\right)^2\\\\\approx2205\:in^2

4 0
3 years ago
Geometry need answers to 2,3,4, and 5
Nataly_w [17]
2. Diagonals of a parallelogram bisect each other. 
3. the diagonals bisect each other and px equals to qx. 
4. JL bisects QP
5. definition of a parallelogram
4 0
3 years ago
Please help me with questions 27 and 28
kondor19780726 [428]
Answer to Problem 27 is choice D) (x,y) --> (x+3, y-5)
Answer to Problem 28 is choice A) collinear

------------------------------------------------------------

Explanation for problem 27: Focus on point G. Notice how we shift it 4 units to the right and then 5 units down. So that's why the rule is (x,y) --> (x+3, y-5)

Explanation for problem 28: The term "collinear" means all points fall on the same line. Or put another way, its possible to draw a single straight line through all the points. The term "co" means "share" and "linear" means "line". So "collinear" translates to "sharing the same line". One axiom is that two points are always collinear no matter how you place them. Any more than 2, its not always guaranteed. 

3 0
3 years ago
A class of 25 students took a spelling test. Two students scored 100 on each test, nine students scored 95 on each test, ten stu
ale4655 [162]

Answer:

90.6

Step-by-step explanation:

in your case, you needed to add up all 25 student's scores and divide that number by 25.

5 0
3 years ago
Read 2 more answers
Lynbrook West, an apartment complex, has 100 two-bedroom units. The monthly profit (in dollars) realized from renting out x apar
marishachu [46]

Answer:

To maximize the monthly rental profit, 90 units should be rented out.

The maximum monthly profit realizable is $38,200.

Step-by-step explanation:

Vertex of a quadratic function:

Suppose we have a quadratic function in the following format:

f(x) = ax^{2} + bx + c

It's vertex is the point (x_{v}, y_{v})

In which

x_{v} = -\frac{b}{2a}

y_{v} = -\frac{\Delta}{4a}

Where

\Delta = b^2-4ac

If a<0, the vertex is a maximum point, that is, the maximum value happens at x_{v}, and it's value is y_{v}.

In this question:

Quadratic equation with a = -12, b = 2160, c = -59000

To maximize the monthly rental profit, how many units should be rented out?

This is the x-value of the vertex, so:

x_{v} = -\frac{b}{2a} = -\frac{2160}{2(-12)} = \frac{2160}{24} = 90

To maximize the monthly rental profit, 90 units should be rented out.

What is the maximum monthly profit realizable?

This is p(90). So

p(90) = -12(90)^2 + 2160(90) - 59000 = 38200

The maximum monthly profit realizable is $38,200.

3 0
3 years ago
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