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Studentka2010 [4]
2 years ago
11

I need help please I need it ASAP

Mathematics
1 answer:
Bess [88]2 years ago
7 0

Answer:

Step-by-step explanation:

Answers and explanations in attachment.  Problem 29 was cut off a bit.  I assumed the question was what percent of the total are cubs.

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Is the simplified form of 2square root of 3 • square root of 12 rational?. Yes. No
stellarik [79]
The product asked above may be given expressed by the expression,
                         (2) x (sqrt 3) times (sqrt 12)
Two is also equivalent to sqrt of 4. The operation may be expressed as,
                                   (sqrt 4) x (sqrt 3) x sqrt (12)
The product is sqrt (144). This gives an answer of 12 and it is rational.
3 0
3 years ago
Read 2 more answers
How to graph 9x+5y=-45
lilavasa [31]
9x +5y= -45 put in standard form y= mx+b coefficient of x is the slope, b is the y intercpept 5y= -9x -45 y= -9/5 x -45 graphing will start at -45 on the y axis from that point go down 9 to the right 5 for the slope continue and graph minimum 2 points to draw the line hope this helps
8 0
3 years ago
When the slope m is multiplied by -1 in f(x)=mx+b.What type of transformation is used.
katen-ka-za [31]

Answer: It is equivalent to a reflection over the y-axis.

Step-by-step explanation:

We start with the function:

f(x) = m*x + b

where the slope is m.

If we only multiply the slope by -1, the function becomes:

f(x) = -m*x + b

There is a transformation called a reflection over the y-axis.

This works as follows, if we have a function f(x), a reflection over the y-axis is written as:

g(x) = f(-x)

If we apply this to our function, we get:

g(x) = f(-x) = m*(-x) + b

g(x) = -m*x + b

Then we can conclude that:

"When the slope m is multiplied by -1 in f(x)=mx+b, it is equivalent to a reflection over the y-axis"

7 0
3 years ago
Solve for x: three fourths times x plus five fourths equals four times x
Nostrana [21]

Answer:

x equals  five thirteenths

Step-by-step explanation:

To solve this, we will follow the steps below;

\frac{3}{4} ×  x  + \frac{5}{4}  =  4 × x

\frac{3x}{4} + \frac{5}{4}   = 4x

\frac{3x + 5}{4} =  4x

Multiply both-side of the equation by 4

\frac{3x + 5}{4} × 4=  4x × 4

On the left-hand side of the equation 4 will cancel-out 4, thus the equation becomes;

3x + 5 = 16x

subtract 3x from both-side of the equation

16x - 3x = 5

13x = 5

Divide both-side of the equation by 13

\frac{13x}{13} = \frac{5}{13}

(On the left-hand side of the equation 13 at the numerator will cancel-out 13 at the denominator while on the right-hand side of the equation 5 will be divided by 13)

x = \frac{5}{13}

x equals  five thirteenths

7 0
3 years ago
Solving systems of equation using elimination
andrew11 [14]

Answer:

2x+2y = 8

x – 2y = 4

3x=12

x=12/3=4

x=4

2x+2y=8

2(4) + 2y = 8

8+2y = 8

2y=8-8

2y=0

y=0/2=0

2(4)+2(0)=8

8+0=8

x+y=8

x-y=4

2x=12

x=12/2=6

6+y=8

y=8-6=2

6+2=8

2x+2y=4

x-y=4

2x+2y=4

2(x-y=4)

2x+2y=4

2x-2y=8

4x=12

x=12/4=3

2(3)+2y=4

6+2y=4

2y=4-6

2y=-2

y=-2/2=-1

2(3)+2(-1)=4

6+-2=4

x+2y=8

-(x+3y=4)

x+2y=8

-x-3y=-4

-1y=4

y=4/-1=-4

x+2(-4)=8

x+-8=8

x=8+8=16

3 0
3 years ago
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