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Lana71 [14]
3 years ago
11

Simplify.

Mathematics
1 answer:
Sav [38]3 years ago
6 0
The answer is C. This is because you have to expand the brackets
-1+5(6-y)
The -1 remains the same but the bracket changes.
-1+30-5y
This is because the 5*6 is 30 and 5*y is 5y
This can be simplified to
29-5y or -5+29
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3) What is an equation for the line that passes through the coordinates (-1.2) and (7,6) ?
OLEGan [10]

Answer:

y=\frac{1}{2} x+\frac{5}{2}

Step-by-step explanation:

First find the slope using the slope using the given points. Remember that the slope is the change in y over the change in x.  

\frac{6-2}{7- (-1)}=\frac{4}{8}=\frac{1}{2}

So now we have the equation y=\frac{1}{2} x+b, and we need to find out what b is. We can do this by pointing a point (either one, but I'll use -1,2) into the equation

2=\frac{1}{2}(-1)+b

Rearrange the equation so it equals b

\frac{5}{2}=b

Put it together and that's the final equation!

y=\frac{1}{2} x+\frac{5}{2}

7 0
3 years ago
zoe and Hannah share tips in the ratio 3:7 last week zoe recived £24 how much did hannah recieve last week
VladimirAG [237]

Answer:

56

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
How many solutions are there to this equation 3(x-4)+5-x=2x-7
Svetlanka [38]
3x-12+5-x=2x-7
2x-7 =2x-7

Means there are infinite solutions.
8 0
3 years ago
What is the equation in slope-intercept form of the line
kari74 [83]

Answer:

-5/2x+3

Step-by-step explanation:

you reciprocate the slope since you are trying to find a line perpendicular.

From this m=2/5 to -5/2

then use the formula y-y1 =m(x-x1)

then you put in the points

y - - 2= -5/2(x- 2)

y+2= -5/2x +5

-2            -2

y= -5/2+ 3

3 0
3 years ago
Find EXACT area of regular hexagon (keep in radical form)
pickupchik [31]

Answer:

1. 24\sqrt{3}   2. 162\sqrt{2}

Step-by-step explanation:

1. The area of a hexagon is A = \frac{3\sqrt{3} }{2} a^{2}

Here our a is 4, so plugging in 4 to our equation gives \frac{3\sqrt{3} }{2} (4^{2}) which simplifies to 24\sqrt{3}

2. The area of an octagon is 2\sqrt{2} r^{2}

Here our r is 9, so plugging in 9 to our equation gives 2\sqrt{2} (9^{2} ) which simplifies to 162\sqrt{2}

6 0
4 years ago
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