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kolezko [41]
2 years ago
8

I need help with these! Thanks!!

Mathematics
1 answer:
spin [16.1K]2 years ago
8 0
-2[9 - (x + 7)]
-2[9 - x - 7]
-2[-x + 9 - 7]
-2[-x + 2]
-2[-x] - 2[2]
2x - 4

The answer is C.
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Fully factorise x² + 7x+6
marin [14]

\\ {\large{\textsf{\textbf{\underline{\underline{ Question \: :}}}}}}  \\

Factorise ;

  • x² + 7x+6

\qquad\rule{120pt}{2pt}

\\ {\large{\textsf{\textbf{\underline{\underline{ Solution \: :}}}}}}  \\

\\  \sf \implies \:  {x}^{2} + 7x+6 \\

\\  \sf \implies \:  {x}^{2} + 6x + x+6 \\

\\  \sf \implies \:  x(x + 6)  +1 (x+6) \\

\\  \sf \implies \:  (x + 6)   (x+1) \\

\\  \sf \implies \:  x + 6= 0 \:\:\:\:  and\:\:\:\:  x+1=0 \\

\\  \sf \implies \:  x= 0 -6\:\:\:\:  and\:\:\:\:  x=0-1 \\

\\  \sf \implies \:  x= -6\:\:\:\:  and\:\:\:\:  x=-1 \\

\\\sf\implies\;{\underline{\boxed {\bf{ \:\:x=-6\:\: }}} }\red\bigstar \;\; \;\; \;{\underline{\boxed {\bf{ \:\:x=-1\:\: }}} }\red\bigstar \\

\\\qquad\rule{120pt}{2pt}\\

5 0
11 months ago
Read 2 more answers
How to slove this one?
disa [49]

Answer:

turning it I think.........

3 0
3 years ago
A rectangular parking lot has a perimeter of 384 meters. The length of the parking lot is 36 meters less than the width. Find th
-Dominant- [34]

Answer:

The length and width of the parking lot is 78 meters and 114 meters respectively.

Step-by-step explanation:

Given;

Perimeter of the parking lot = 384\ m

Solution,

Let the width of the parking lot be x.

Then, according to question length = (x-36).

The perimeter of a rectangle is sum of all the sides of rectangle. Which is given by an expression;

perimeter=2\times(length+width)

Now substituting the values, we get;

384=2\times(x-36+x)\\\frac{384}{2}=(2x-36)\\192=2x-36\\192+36=2x\\2x=228\\x=\frac{228}{2}= 114

Width = 114\ m

Length = x-36=114-36=78\ m

Hence the length and width of the parking lot is 78 meters and 114 meters respectively.

6 0
2 years ago
[PICTURE ATTACHED] HEEELLPPP!!
Agata [3.3K]
It would most likely be feet.
3 0
2 years ago
There are 9.88 grams of sugar in 4 servings of grapes. How many grams of sugar are in a single serving of grapes?
Korolek [52]
Ok so grapes, 

We have 4 servings and 9.88 grams total, so to find one serving we just need to divide by 4. 

9.88/4 = 2.47 per serving
8 0
3 years ago
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