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2 years ago

Solve: -3b-(6b+12)=-9b+13

Mathematics

1 answer:

andre [41]2 years ago

4 0

Answer:

they equal the same thing casue the second one is simplified

Step-by-step explanation:

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There are 25 rows of 18 stckers on a sheet. How many stickers are there on a sheet. How many on 40 sheets?

Nitella [24]

There are 450 stickers on the sheet

And 18000 on 40 sheets

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2 years ago

At Northwest Highschool, there are 1472 students in the junior class and 1012 students in the senior class. To let the juniors w

9966 [12]

The answer to your question is 23.

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2 years ago

write an equation in slope-intercept form of the line whose y-intercept is -3 and the line is perpendicular line whose equation

Artemon [7]

first you need to find the slope of he current equation by changing it to y=mx+b

3x-2y=9 subtract 3x from both sides

-2y=-3x+9 divide both sides by -2

y+3/2x-9/2 Your slope of the existing is 3/2 or 1 1/2

a perpendicular line has the opposite reciprocal slope so 3/2 would be -2/3

-3 is your y intercept. now you can make your equation

y=-2/3x-3

8 0

3 years ago

Which of the following is an extraneous solution of the square root of -3x-2=x+2

yarga [219]

Answer:

x=-6 is an extraneous solution

Step-by-step explanation:

we have

$\sqrt{-3x-2} =x+2$

squared both sides

$-3x-2=(x+2)^2$

$-3x-2=x^2+4x+4$

$x^2+7x+6=0$

solve the quadratic equation by graphing

The solution is x=-6 and x=-1

see the attached figure

<u><em>Verify each solution</em></u>

substitute the value of x in the original expression

For x=-6

$\sqrt{-3(-6)-2} =-6+2$

$\sqrt{16} =-4$

$4=-4$ ----> is not true

Is an extraneous solution

For x=-1

$\sqrt{-3(-1)-2} =-1+2$

$\sqrt{1} =1$

$1=1$ ----> is true

Is the solution

4 0

3 years ago

What is the value of 2/3^-4

Reptile [31]

Answer:

$\frac{16}{49}$

Step-by-step explanation:

To solve problems like this, we need to multiply the base , $\frac{2}{3}$ , the amount of times as the exponent, 4.

Essentially, the equation is $\frac{2}{3}$ x $\frac{2}{3}$ x $\frac{2}{3}$ x $\frac{2}{3}$ .

The product would be $\frac{16}{49}$ .

Now we can't forget that the exponent is a negative. But because the exponent is an even number, we don't need to worry about that.

Hope this helped :)

8 0

3 years ago