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3 years ago

What whole number best approximates the value of x? 100 102 103 104

Mathematics

2 answers:

Monica [59]3 years ago

5 0

I'm pretty sure your answer should be approximately 10.2 because if its asking what "x" is closest to, then 10.2 would be the number it is closest to on the number line. Hope this helps you ^-^

Katarina [22]3 years ago

3 0

Answer

104

Explanation

The √x from the number line is about 10.2.

Or say less than 10.2. The number is also much greater than 10.1.

If you square 10.2 to get the value of x;

10.2² = 104.04

So, the approximate value of x is 104.

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A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by gi

GuDViN [60]

The time that rocket will hit the ground, to the nearest 100th of second is 10.43 seconds

Given the equation representing the height reached by a rocket as:

$y = -16x^2 + 157x + 104$

The rocket will hit the ground when y = 0. Substituting y = 0 into the expression to get x;

$0 = -16x^2 + 157x + 104\\16x^2 - 157x - 104 = 0\\$

On factorizing:

x = 10.43 seconds

Hence the time that rocket will hit the ground, to the nearest 100th of second is 10.43 seconds

Learn more here: brainly.com/question/14479223

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3 years ago

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NeX [460]

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2 years ago

A square field is 30 m long.Find the length of wire required to fence it with 4 rounds

____ [38]

Answer:

120m

Step-by-step explanation:

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4 0

3 years ago

Work out the percentage change when a price of £70 is decreased to £49

Monica [59]

Answer:

30% decrease in price

Step-by-step explanation:

Since 70-49=21, we know that the price decreased by 30 pounds. The formula to find a percentage decrease is that you should then divide the original number(70) by 21(that equals 0.3!) 0.3 as a percentage would then be 30%, so the answer is there is a 30% decrease in price.

5 0

3 years ago

Yes,I need help with another one of these , the number that got cut off is 24 btw.

V125BC [204]

Since, PS and QR are parallel, we know that <QRP is equal to <RPS. Therefore, we can solve for y by setting the two equations equal to each other.

5y+14=8y-13

*Subtract 5y from both sides to isolate the variable*

14=3y-13

*Add 13 to both sides*

27=3y

*Divide both sides by 3*

9=y

Now, plug in 9 for y in the equation 8y-13 to find the measure of that angle.

8(9)-13

<RPS=59

Now, the sum of the angles in any triangle is equal to 180 degrees. We can use this knowledge to set up an equation to solve for x.

3x+2x+1+59=180

*Combine like terms*

5x+60=180

*Subtract 60 from both sides*

5x=120

*Divide both sides by 5*

x=24

Now, we can find <RSP by pluggin 24 in for x.

2(24)+1

48+1

<RSP=49 degrees

Hope this helps!!

3 0

4 years ago