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stira [4]
3 years ago
5

Simplify this algebraic expression completely.

Mathematics
2 answers:
Jobisdone [24]3 years ago
5 0

Answer:

Option C

Step-by-step explanation:

8y-2(y+4)\\\\\text{Distribute:}\left \{ {{-2*y=-2y} \atop {-2*4=-8}} \right. \\8y-2y-8\\\text {Combine like terms:}\\8y-2y=6y\\\text {We are left with:}\\\boxed {6y-8}\\\text {This is the simplest form of the equation. Option C should be the correct answer.}

Len [333]3 years ago
3 0

Answer:

C.) 6y-8

Step-by-step explanation:

8y-2(y+4)

8y-2y-8

6y-8

So answer is C

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What is the enlargement ratio of you enlarge a 8:6 to have a height of 12 units and a width of 16 units.
galina1969 [7]

Answer:

2 : 1

Step-by-step explanation:

Initial dimension = 8:6

New information;

height of 12 units and a width of 16 units

Final dimension = 16:12

Comparing both dimensions,

Multiplying the initial by 2, we get the final dimension, this meas;

Final Dimension = Initial Dimension * 2

Final Dimension / Initial Dimension = 2 / 1 = 2 : 1

5 0
3 years ago
What is the height of this triangle between C and D
Rom4ik [11]

Answer:

12 units

Step-by-step explanation:

To find any side length of a right triangle given two side lengths, you would use the pythagorean theorem which is a² + b² = c². In this equation, a and b represents either the height of base of the triangle, and c represents the  hypotenuse of the triangle (the diagonal line - in your question it is 13). By plugging in the base and  hypotenuse, you get the equation of 5² + b² = 13². 5² is equal to 25 and 13² is equal to 169, so the equation is 25 + b² = 169. Subtract 25 for both sides of the equation and you find that b² = 144. Square both sides and the missing length is 12 because √144 = 12.

8 0
3 years ago
Can someone help me please
lianna [129]

Answer:

y=-3/5x+4

Step-by-step explanation:

Pick any two points the line goes through.

I picked

(0,4) and (5,1)

There are a few ways to do this but ultimately, it’s the same concept. I will use slope-intercept form which for me was always easier.

y=mx+b where m is the slope and b is the y-intercept. The y-intercept is the point where the line crosses the y-axis which in this case is point (0,4) so the b=4.

To find the slope, use rise/run between the two points you chose. Point (5,1) is 3 units UNDER point (0,4) so now we have -3/run because -3 is the “rise”. After you count down 3 units always go right. After going right 5 units, you touch point (5,1). So the “run” is 5. Which means that the slope is -3/5.

m=-3/5 and b=4

So the equation is:

y=-3/5x+4

Hope this helps!!

4 0
3 years ago
When will these two lines intersect <br>C. y=-2x +3<br>y = x​
Andrej [43]

Answer:

The intersection point  of the given lines is  (1,1).

Step-by-step explanation:

Here, the given equations are:

y  =  - 2 x +  3

y  =  x​

Substitute y = x in  the first equation,

y   = -2 x  +  3 becomes      y =  -2 (y)  + 3

or, y + 2 y = 3

or, 3 y = 3  ⇒  y = 3/3 = 1

⇒  y =  1

Now, as x =  y ⇒ x =   1

Hence, the intersection points of the given lines is  (1,1).

8 0
3 years ago
Convert the following Logarithmic Equation into a Exponential Equation.<br><br> log_3(-2x+1)=-2y+6
lozanna [386]

Answer:

3^(-2y + 6) = (-2x+1)

Step-by-step explanation:

We have;

log_3_(-2x+1) = -2y + 6

What this means in exponential form is that;

3^(-2y + 6) = (-2x+1)

3 0
3 years ago
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