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ra1l [238]
3 years ago
6

(X^2 + 4x)(x) is equal to x^3 + 4x^2 or 5x^2 or 4x^4

Mathematics
1 answer:
marta [7]3 years ago
5 0
It would be equal to x^3+4x^2
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Pls help me with this
Black_prince [1.1K]

Answer:

71°

Step-by-step explanation:

The temperature had to be at least 71° when the heater quit to be able to lose 4° and still be at least 67° when the heater is repaired.

Question is...how did someone know that the heater had failed?

4 0
3 years ago
Cho Q(x)=x^2+mx-12.Biết Q(-3)=0.tìm nghiệm còn lại
Pachacha [2.7K]

Answer: m=-1.

Step-by-step explanation:

Q(x)=x^2+mx-12\ \ \ \ Q(-3)=0\ \ \ \ \ m=?\\Q(-3)=(-3)^2+m*(-3)-12=0\\9-3m-12=0\\-3m-3=0\\3m=-3\ |:3\\m=-1.

3 0
2 years ago
А,
stepladder [879]
Hey I don’t understand
6 0
3 years ago
What are proofs statements
mina [271]

Geometric proofs can be written in one of two ways: two columns, or a paragraph. A paragraph proof is only a two-column proof written in sentences. However, since it is easier to leave steps out when writing a paragraph proof, we'll learn the two-column method.

A two-column geometric proof consists of a list of statements, and the reasons that we know those statements are true. The statements are listed in a column on the left, and the reasons for which the statements can be made are listed in the right column. Every step of the proof (that is, every conclusion that is made) is a row in the two-column proof.


5 0
3 years ago
I am really confused about this question for math.. any help would be really appreciated:
Elina [12.6K]

y= (\frac 1 4 )^x

A reflection about the x axis, about y=0, is the mapping (x',y')=(x,-y) so

y'= -y = - (\frac 1 4)^{x'}

A dilation of 2 is the mapping (x'',y'')=(2x', 2y')

So

x'=x''/2, y'=y''/2

y''/2= - (\frac 1 4)^{x''/2}

y'' =  - 2((\frac 1 4)^{1/2})^{x''}

y''= - 2(\frac 1 2)^{x''}

We can rewrite that without the primes and combine the powers of 2.

y =  - 2^{1-x}

Let's graph these and see if we're close,

Plot y= (1/4)^x, y= - (1/4)^{x}, y = - 2^{1-x}

6 0
3 years ago
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