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Olin [163]
3 years ago
12

Which system is equivalent to StartLayout Enlarged left-brace 1st Row 3 x squared minus 4 y squared = 25 2nd row negative 6 x sq

uared minus 2 y squared = 11 EndLayout
Mathematics
2 answers:
baherus [9]3 years ago
7 0

Answer:

second option :)

Step-by-step explanation:

Debora [2.8K]3 years ago
7 0

Answer:

B.

StartLayout Enlarged left-brace 1st Row 3 x squared minus 4 y squared = 25 2nd row negative 12 x squared + 4 y squared = 22 EndLayout

Step-by-step explanation:

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Kadence took a random sample of students at her school and asked them how much they typically slept on a school night versus a w
pochemuha

Answer:

The answer is "3.329".

Step-by-step explanation:

Please find the complete question in the attached file.

\text{test statistic t} = \frac{slope}{standard \ error}

                      =\frac{0.789}{0.237}\\\\=3.329

3 0
3 years ago
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kumpel [21]

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Step-by-step explanation:

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Using the functions f(x) = 2x + 7, g(x) = x2 - 4, and h(x) = 5x. Find all of the following. Make sure your answer is in simplest
Stolb23 [73]

Answer:

Given

f(x) = 2x+7

g(x) = x^2-4

h(x) = 5x

a. 4h(x)

= 4 * 5x

= 20x

b. f(x) - g(x)

f(x) - g(x) = 2x + 7 - (x^2 - 4)

= 2x+7-x^2+4

=-x^2+2x+7+4

=-x^2+2x+11

c. f(g(x)) = 2(g(x))+7

=2(x^2-4) +7

=2x^2-8+7

=2x^2-1

d. g(x)h(x) = (x^2-4)(5x)

= 5x^3 - 20x

e. g(x) / f(x) = x2 - 4/ 2x + 7

7 0
3 years ago
Rewrite the following statement in the form ∀x ______, if _______ then _______ (where each of the second two blanks are senten
Bumek [7]

Answer:

"Vx: if x is a valid argument with true premises then x has a true conclusion"

In a symbol form

Vx ( P(x) ⇒ 2(x) )

Step-by-step explanation:

The Following statement in the form  âˆ€x ______, if _______ then _______ is a valid argument and this because any valid argument with "true premises" has a "true conclusion" as well

we will rewrite this statement in a universal condition statement form

assume x is a valid argument with true premises

then the following holds true

p(x) : x is a valid argument with true premises

q(x) : x has true conclusion

applying universal conditional statement

"Vx, if x is a valid argument with true premises then x has a true conclusion"

In a symbol form

Vx ( P(x) ⇒ 2(x) )

7 0
3 years ago
Greatest common factor of −27x2yz5 + 15x3z3
dimulka [17.4K]
The GCF will be found as follows:
-27x^2yz^5+15x^3z^3
-27x^2yz^5=-3*3*3*x*x*y*z*z*z*z*z
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the GCF is the product of the lowest power of each factor that appears in each term
thus we shall have:
3*z*z*z*x*x
=3z^3x^2
8 0
3 years ago
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