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4 years ago

Is 4.70 greater than 4.07

2 answers:

6 0

Yes, it is. You know because when comparing numbers, you start with the greatest place value which in this case is the ones place. You then decide which number is bigger the bigger one is the bigger number, if they are the same you go to the nest place value (tenths). Since 7 is greater than 0 4.7 is more than 4.07.

Aleks [24]4 years ago

4 0

Yes it is
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Is x^2 + 1/x = 4 a quadratic equations

Liono4ka [1.6K]

Answer:

$\large\boxed{\pink{ \leadsto The \ given \ equation \ is \ not \ a \ Quadratic \ equation . }}$

Step-by-step explanation:

Given equation to us is ,

$\green{\implies x^2+\dfrac{1}{x}=4 }$

So , a equation is said to be a quadratic equation if the highest degree of the variable is 2 . On simplifying the Equation ,

$\implies x^2 +\dfrac{1}{x}=4$

Taking x as LCM ,

$\implies \dfrac{x^2.x + 1 }{x}= 4$

Transposing x to RHS .

$\implies x^3 + 1 = 4x$

Putting all terms in LHS

$\boxed{\bf \implies x^3 - 4x - 1 = 0 }$

Since here the highest degree of the variable is 3 not 2 . So its a cubic equation and not a quadratic equation .

<h3>Hence the given equation is not a quadratic equation .</h3>

4 0

3 years ago

Two planes simultaneously left the Washington and LA and headed towards each other. The distance between the cities is 2700 mile

katrin2010 [14]

Answer:

Speed of the plane from Washington: $500\ mph$

Speed of the plane from LA: $600\ mph$

Step-by-step explanation:

We need to remember that:

$d=Vt$

Where "d" is distance, "V" is speed and "t" is time.

Let be "w" the speed in mph of the plane from Washington and "l" the speed in mph of the plane from LA.

We know that the distance between the cities is 2700 miles and after they flied for 2 hours, the distance between them was 500 miles. Then we can write the following equation:

$2w + 2l + 500 = 2700$ [Equation 1]

Since the speed of the plan from LA was 100 mph faster, we can write this equation:

$l=w+100$ [Equation 2]

The steps to solve this are:

1. Substitute the Equation 2 into the Equation 1 and solve for "w":

$2w + 2(w+100) + 500 = 2700\\\\4w+200+500=2700\\\\w=\frac{2000}{4}\\\\w=500$

2. Substitute the value of "w" into the Equation 2 in order to find "l":

$l=500+100\\\\l=600$

7 0

4 years ago

In a race, Car #1 went an average of 165 miles per hour for x hours before dropping out. Car #2 went an average of 175 miles per

Akimi4 [234]

When you think about it. It's actually quite easy.
The number are the amount of miles, and the variables are the amount of hours. So we would just have to multiply them. So, by putting the number together we would be able to multiply them once we have the numbers for the variables. Since we dont have them, we can just make the inequality. It says that car 1 traveled at LEAST that of car 2. Showing that car 1 may have traveled farther. SOOOOO........ the inequality should look like this:

165x ≥ 175y

7 0

3 years ago

Read 2 more answers

Lynn gave her nail technician a $5.40 tip. The tip was 18% of the cost of the manicure. write an equation to find b, the cost of

Luda [366]

B x .15 = 5.10
b=5.10/.15
b=34

6 0

2 years ago

How is x = 5 mathematically different from x > 5?

Ivahew [28]

Answer:

in x>5 x is larger than 5