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3 years ago

Write 320,400 in expanded form using exponents

Mathematics

1 answer:

Ivanshal [37]3 years ago

6 0

Answer:

(3*105 )+(2*104 )+(0*103) +(4*102 )+(0*101 )+(0*100)

Step-by-step explanation:

(3*105 )

+(2*104 )

+(0*103)

+(4*102 )

+(0*101 )

+(0*100)

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2 years ago

What is the vertex of the graph of the function below?

Free_Kalibri [48]

Since y = x2 - 8x + 12 is a quadratic equation, it is the same of y=ax²+bx+c
the main formula of the vertex is x= -b/2a, and y=f(-b/2a)

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the answer is B. (4, -4)

3 0

3 years ago

Read 2 more answers

Dory lives 2.5 miles from school. Jim lives 3.2 kilometers from school. Ely lives 2300 meters from school, and Chris lives 3000

dezoksy [38]

Answer: $Ely, Chris, Jim, Dory$

Step-by-step explanation:

The distances must be expressed in the same uni.

Let's express the distance in meters.

We know that Dory lives 2.5 miles from school.

Since:

$1\ mi = 1.61\ km$

The distance in kilometers is:

$(2.5\ mi)(\frac{1.61\ km}{1\ mi})=4.025\ km$

Since $1\ km = 1,000\ m$

The distance in meters is:

$(4.025\ km)(\frac{1,000\ m}{1\ km})=4,025\ m$

Jim lives 3.2 kilometers from school. The distance in meters is:

$(3.2\ km)(\frac{1,000\ m}{1\ km})=3,200\ m$

Chris lives 3,000 yards from school.

Since:

$1\ m = 1.09\ yd$

The distance in meters is:

$(3,000\ yd)(\frac{1\ m}{1.09\ yd})=2,752.29\ m$

Therefore, the order of the students from closest to farthest from school is:

$Ely, Chris, Jim, Dory$

7 0

3 years ago

Which of the following point-slope form equations could be produced with the points (4, -5) and (-4, -3)?

Alexus [3.1K]

Answer:

$y + 5 =- \frac{1}{4} (x-4)$

Step-by-step explanation:

You will find the slope-intercept form first, and then you can find the point slope form of the equation

6 0

3 years ago

Please answer this question...No spam

mariarad [96]

Answer:

(d) (x² + y² + z²)³ = 27x²y²z²

Step-by-step explanation:

Use the identity:

a³ + b³ + c³ = 3abc if a + b + c = 0

Substitute as follows:

a = $x^{2/3}$ , b = $y^{2/3}$ , c = $z^{2/3}$

The sum of the cubes is:

x² + y² + z² = 3(xyz) $^{2/3}$

Cube both sides:

(x² + y² + z²)³ = 27x²y²z²

Correct choice is (d)

8 0

3 years ago