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4 years ago

(9.4x-3y) -(4.5x-8y) simplified

Mathematics

1 answer:

Elena-2011 [213]4 years ago

6 0

Answer:

4.9x + 5y

Step-by-step explanation:

$(9.4x - 3y) - (4.5x - 8y) \\ = 9.4x - 3y - 4.5x + 8y \\ = 9.4x - 4.5x + 8y - 3y \\ = 4.9x + 5y$

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Use the quadratic formula to solve for x 8x^2+7x+1=0 plz help

vagabundo [1.1K]

Answer:

X= -7 ± √17 / 16

x= - 0.7798...

Step-by-step explanation:

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3 years ago

Read 2 more answers

Find f.<br><br> A) 7.4<br><br> B) 8.2<br><br> C) 10.5<br><br> D) 11.1

tatyana61 [14]

F=72

g=6

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

$\cos { \left( F \right) } =\frac { { e }^{ 2 }+{ g }^{ 2 }-{ f }^{ 2 } }{ 2eg }$

Therefore:

$\cos { \left( 72 \right) } =\frac { { e }^{ 2 }+{ 6 }^{ 2 }-{ f }^{ 2 } }{ 2\cdot e\cdot 6 } \\ \\ \cos { \left( 72 \right) } =\frac { { e }^{ 2 }+36-{ f }^{ 2 } }{ 12e }$

$\\ \\ 12e\cdot \cos { \left( 72 \right) } ={ e }^{ 2 }+36-{ f }^{ 2 }\\ \\ \therefore \quad { f }^{ 2 }={ e }^{ 2 }-12e\cdot \cos { \left( 72 \right) } +36\\ \\ \therefore \quad f=\sqrt { { e }^{ 2 }-12e\cdot \cos { \left( 72 \right) +36 } } \\ \\ \therefore \quad f=\sqrt { e\left( e-12\cos { \left( 72 \right) } \right) +36 }$

But what is e?

E=76

G=32

g=6

And:

$\frac { e }{ \sin { \left( E \right) } } =\frac { g }{ \sin { \left( G \right) } }$

Which means that:

$\frac { e }{ \sin { \left( 76 \right) } } =\frac { 6 }{ \sin { \left( 32 \right) } } \\ \\ \therefore \quad e=\frac { 6\cdot \sin { \left( 76 \right) } }{ \sin { \left( 32 \right) } }$

If you take this value into account, you will discover that f is...

$f=\sqrt { \frac { 6\cdot \sin { \left( 76 \right) } }{ \sin { \left( 32 \right) } } \left( \frac { 6\cdot \sin { \left( 76 \right) } }{ \sin { \left( 32 \right) } } -12\cos { \left( 72 \right) } \right) +36 } \\ \\ \therefore \quad f=10.8\quad \left( 1\quad d.p \right)$

So I would have to say that the answer is approximately (c).

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3 years ago

Hal is going over the credit scores he received from the three major credit bureaus. He Experian score is 711, his Equifax score

Anton [14]

The Halls credit score is 2186.

We have given that,he experian score =711

his equifax score =736

his trans union score =736

<h3>What is the meaning of Hals score?</h3>

Hals credit score = sum of all score.

Hals credit score = sum of all score.

=711+736+736

=2186

Therefore, the Halls credit score is 2186.

To learn more about the credit score visit:

brainly.com/question/23024185

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2 years ago

Does the table below represent a proportional<br> relationship? Show your work to prove

dolphi86 [110]

Answer:

the table does represent a propor. rela. since y=12x

you can multiply the x values by 12 and that y value will be just that, and in this case, all of them are multiplied by 12.

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3 years ago

Which set of data has a greater standard of deviation?

olchik [2.2K]

Step-by-step explanation:

first set of data will give greater standard of deviation

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4 years ago