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3 years ago

Find (8x+6)−(7x+9). (8x+6)−(7x+9)=

Mathematics

2 answers:

Bumek [7]3 years ago

6 0

The answer is x-3 hope this helps

MrMuchimi3 years ago

4 0

Answer:

=x-3

Explanation:

=8x+6+−1(7x+9)

=8x+6+−1(7x)+(−1)(9)

=8x+6+−7x+−9

Combine Like Terms:

=8x+6+−7x+−9

=(8x+−7x)+(6+−9)

=x+-3

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krok68 [10]

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3 years ago

Lucy’s chocolate bar is 54% cocoa. If the weight of the chocolate bar is 54 grams, how many grams of cocoa does it contain? Roun

Masteriza [31]

Answer:

The chocolate bar contains 29.2 grams of cocoa.

Step-by-step explanation:

Given that Lucy’s chocolate bar is 54% cocoa and the weight of the chocolate bar is 54 grams.

Hence, the amount of cocoa in the chocolate bar is given by

54% of 54 grams

54% percentage means 54/100 = 0.54

Hence, the amount of cocoa in the chocolate bar is

$0.54\times54\\=29.16$

When rounded to the nearest tenth, 29.16 should be equal to 29.2

Hence, the chocolate bar contains 29.2 grams of cocoa.

4 0

3 years ago

Which is the graph of f(x) = -(x + 3)(x + 1)?

Bas_tet [7]

Answer:

See attachment

Step-by-step explanation:

A function is given to us and we need to tell which graph represents the given function. The function given to us is,

$\tt: \implies f(x) = -( x + 3 )( x + 1 )$

Let's find out at which points do the graph Intersects x axis / finding the roots. For that substitute f(x) = 0 , we have ,

$\tt: \implies -(x +3)( x + 1 ) = 0$

Equate each factor by 0 ,

$\tt: \implies \boxed{\blue{ \tt x = -1,-3 }}$

Therefore the graph will intersect x axis at x is equal to -1 and x is equal to -3 .

On looking at the given graphs in the options the second graph intersects x axis at -1 and -3 .

Hence the second option is correct . 

{ See attachment }

4 0

3 years ago

How do I solve this

nexus9112 [7]

the formula is

$measure \: of arc/360× \: \pi {r}^{2}$

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3 years ago

Convert 0.0000001 to the power of 10

Hoochie [10]

I believe it is 10 to the power of negative 7

5 0

4 years ago

Read 2 more answers