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3 years ago

17 (divided) 10,000 = move ______ place(s) left or right

Mathematics

1 answer:

Ganezh [65]3 years ago

3 0

Answer: I think it is 4 places to the left.

Step-by-step explanation: Usually when dividing numbers like 1000, 100, etc. with decimals, I count the amount of zeros and then move the decimal point to the left the amount of zeros there are. When you multiply you move the decimal to the right, when you divide you move the decimal to the left.

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Solve for x. 3x – 4 + 2x = 36

spayn [35]

Answer:

x=8

Step-by-step explanation:

3x-4+2x=36

5x-4=36

5x=36+4

5x=40

8x5=40

3 0

3 years ago

Garrrrryy no need to show work two questions thankks

irakobra [83]

1. $x^2-x-72=0$
$\Delta=(-1)^2-4*1*(-72)=1+288=289$
$\sqrt{\Delta}=17$
$x_1=\frac{1-17}{2}=-8$
$x_2=\frac{1+17}{2}=9$

2. $f(x)=x^2+12x+20$
$\Delta=144-80=64$
$\sqrt{\Delta}=8$
$x_1=\frac{-12-8}{2}=-10$
$x_2=\frac{-12+8}{2}=-2$

8 0

4 years ago

I need help fast plss ive failed this test 7 times already

liberstina [14]

it's either a or b, not sure but I think it's b

5 0

3 years ago

Find an equation of the line passing through the pair of points. Write the equation in the form Ax +By = C.

Alexxandr [17]

9514 1404 393

Answer:

5x -y = -37

Step-by-step explanation:

One way to find the coefficients A and B is to use the differences of the x- and y-coordinates:

A = Δy = y2 -y1 = 2 -(-3) = 5

B = -Δx = -(x2 -x1) = -(-7 -(-8)) = -1

Then the constant C can be found using either point.

5x -y = 5(-7) -2 = -37

The equation of the line is ...

5x -y = -37

_____

Additional comment

This approach comes from the fact that the slope of a line is the same everywhere.

$\dfrac{y-y_1}{x-x_1}=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{\Delta y}{\Delta x}\\\\\Delta x(y-y_1)=\Delta y(x-x_1)\qquad\text{cross multiply}\\\\\Delta y(x-x_1)-\Delta x(y-y_1)=0\qquad\text{subtract y term}\\\\\Delta y(x) -\Delta x(y) = \Delta y(x_1)-\Delta x(y_1)\qquad\text{Ax+By=C form}$

The "standard form" requires that A be positive, so we chose point 1 and point 2 to make sure that was the case.

5 0

3 years ago

What is the measure of angle C?

lbvjy [14]

Answer: A: 90 degrees

Step-by-step explanation:

The measure of angle C is 90 degrees as BD and BC are chords to the circle.

6 0

3 years ago