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2 years ago

14

What is 3 x 10^6 in standard form?

2 answers:

adelina 88 [10]2 years ago

3 0

Answer:

3000000

Step-by-step explanation:

3 * 10^6

10^6 means move the decimal point 6 places to the right

3. becomes

3000000

azamat2 years ago

3 0

Answer:

3000000

Step-by-step explanation:

3 x 10^6

3 x 10 x 10 x 10 x 10 x 10 x 10

3 x 1000000

3000000

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Solve the equation y=2x^2-x-6 using the quadratic formula show the steps to solving

saul85 [17]

Answer:

$x1 = 2 \\ x2 = - \frac{3}{2}$

Step-by-step explanation:

$x = \frac{ - b + - \sqrt{ {b}^{2} - 4ac } }{2a} \\ x = \frac{1 + - \sqrt{ {( - 1)}^{2} - 4(2)( - 6) } }{2(2)} \\ x = \frac{1 + - \sqrt{1 + 48} }{4} \\ x = \frac{1 + - \sqrt{49} }{4} \\ x = \frac{1 + - 7}{4} \\ \\ x1 = \frac{1 + 7}{4} = \frac{8}{4} = 2 \\ x2 = \frac{1 - 7}{4} = - \frac{6 }{4} = - \frac{3}{2}$

7 0

3 years ago

Determine the scale factor for each dilation. Determine whether the dilation is an enlargement, reduction, or congruence transfo

scoray [572]

General Idea:

W hen we are given a point P(x, y) centered at origin with a scale factor of k, then the dilated point will be given by P' (kx, ky)

When $k>1$ , then P' is enlargement of P

When $0 < k < 1$ , then P' is reduction of P

Applying the concept:

In the diagram given A'B'C' is enlargement of ABC. So the correct option will be option A. $k = 2$ , enlargement

6 0

2 years ago

Find the arc length of the semicircle. Either enter an exact answer in terms of π or use 3.14 and enter your answer as a decimal

cricket20 [7]

Answer:

The arc length of the semicircle is $5 \pi\ units$ or $15.7\ units$

Step-by-step explanation:

The complete question in the attached figure

we know that

The circumference of a semicircle is given by the formula

$C=\frac{1}{2}\pi D$

where

D is the diameter of the semicircle

we have

$D=10\ units$

substitute

$C=\frac{1}{2}\pi (10)$

$C=5 \pi\ units$ ----> exact value

Assume

$\pi =3.14$

$C=5(3.14)=15.7\ units$ ----> approximate value

therefore

The arc length of the semicircle is $5 \pi\ units$ or $15.7\ units$

6 0

3 years ago

Can. Anyone help me please

Ulleksa [173]

Answer:

2. 8x=56

divide both sides of the equation by 8

8x divided by 8=56 divided by 8

any expression divided by itself equals 1

x=56 divided by 8

calculate the quotient

x=7

3. 918 divided by 3= 306

4. answer is 5/21

5&6 not sure

7. inches

8. not sure

4 0

2 years ago

Read 2 more answers

How do you find rate?

Liula [17]

Answer:

Rate is distance over time

Step-by-step explanation:

7 0

3 years ago