4 years ago

Graph the linear function g(x)=−4+7x.

Mathematics

1 answer:

Gala2k [10]4 years ago

6 0

G(x)= -4+7x in graphing form:

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Zach and Ginny are building model cars. Ginny's car is 2 more than 3 times the length of Zach's car. The sum of the lengths of b

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Answer:

$x+(3x+2)=30$

Step-by-step explanation:

Let

x ----> the length of Zach's car

y ----> the length of Ginny's car

we know that

The sum of the lengths of both cars is 30 inches

$x+y=30$ ----> equation A

Ginny's car is 2 more than 3 times the length of Zach's car

$y=3x+2$ ----> equation B

substitute equation B in equation A

$x+(3x+2)=30$

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3 years ago

the length of a rectangular parking lot at the airport is 2/3 is mile.if the area is 1/2 square mile,what is the width of the pa

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Answer:

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Step-by-step explanation:

3/4*2/3+1/2

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3 years ago

Explain why the exponents cannot be added in the product 12^3 x 11^3.

sergij07 [2.7K]

Answer:

see explanation

Step-by-step explanation:

The exponents can only be added if the bases are the same

Here one base is 12 and the other is 11

So the rule of addition is not applicable.

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3 years ago

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Name a fourth point in plane TUY. x Y W Z

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Answer:

Step-by-step explanation:

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4 years ago

Please help math

Naddika [18.5K]

$\displaystyle\\
15(2a - 2) = 5(a^2 -1) \\ \\ 
30a - 30 = 5a^2-5\\\\
-5a^2 + 30a -30 + 5 =0\\\\
-5a^2 + 30a -25 =0 ~~~~~\Big| \times (-1) \\\\
5a^2 - 30a +25 = 0~~~~~\Big| : 5 \\\\
a^2 - 6a +5 = 0 \\ \\ 
a_{12}= \frac{-b\pm \sqrt{b^2-4ac}}{2a}= \frac{6\pm \sqrt{36-20}}{2}= \frac{6\pm \sqrt{16}}{2}=\frac{6\pm 4}{2}= \boxed{3\pm 2} \\ \\ 
a_1 = 3+ 2 = \boxed{5}\\\\
a_2 = 3-2 = \boxed{1}$

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3 years ago

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