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Finger [1]
4 years ago
5

I will give you 300 ponitsWhat is the value of the expression shown below?

Mathematics
1 answer:
Levart [38]4 years ago
5 0
21 i brelivd is right
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An object is launched from a platform.
Bess [88]

Answer:

60 feet

Step-by-step explanation:

The height, h (in meters), of the object launched from a platform is represented by the equation

h=h(x)=-5x^2+20x+60

where x is the time (in seconds) passed after the launch.

The time of launch is x=0 (0 seconds passed after the launch)

Substitute x=0 to find the height:

h=h(0)=-5\cdot 0^2+20\cdot 0+60=60\ feet

4 0
4 years ago
Which powers have a value of 256?
iVinArrow [24]

Answer:

B I think

Step-by-step explanation:

7 0
3 years ago
Answer to:<br> (a - 3b)(2a - 5b)<br><br> distributive form
Alina [70]
When I look at a problem like this, I think of the FOIL method. This method states "You multiply integers in the order of First, Outside, Inside, Last, and then add them  together"

(a -3b)(2a - 5b)

First --- 2a * a
Out  --- (-5b) * a
In     --- (-3b) * 2a
Last --- (-3b) * (-5b)

2a² - 5ab -6ab + 15b²

2a² - ab + 15b²

This would be your answer in simplest form!
5 0
3 years ago
You bike
Lyrx [107]
<h2>Answer:</h2>

<em>You will bike 30.2 miles in the seventh day according to the prediction.</em>

<h2>Explanation:</h2>

Here we have the following data, You bike

  • 5  miles the first day of your​ training,
  • 5.4 miles the second​ day,
  • 6.2 miles the third​ day, and
  • 7.8 miles the fourth day.

So we can know some facts:

  • From the first day to the second day the number of miles increases:

5.4-5=0.4mi

  • From the second day to the third day the number of miles increases:

6.2-5.4=0.8mi

  • From the third day to the fourth day the number of miles increases:

7.8-6.2=1.6mi

By taking a look at the pattern, we can see that each day you increases the number of miles by a factor of 2 compared to the previous day. So:

  • From the fourth day to the fifth day the number of miles increases:

x_{5}-7.8=3.2mi \\ \\ x_{5}=7.8+3.2=11mi, \ \text{Day 5}

  • From the fifth day to the sixth day the number of miles increases:

x_{6}-11=6.4mi \\ \\ x_{6}=6.4+11=17.4mi, \ \text{Day 6}

Finally:

  • From the sixth day to the seventh day the number of miles increases:

x_{7}-17.4=12.8mi \\ \\ x_{7}=12.8+17.4=30.2mi, \ \text{Day 7}

6 0
4 years ago
Mr smith monthly take home pay is 2880. 22% of his gross salary is deducted for taxes and insurance to the nearest dollar what i
Mashcka [7]

Answer:

  • $3692

Step-by-step explanation:

Let the gross salary be x.

<u>Then after deduction it becomes:</u>

  • x - 22% =
  • x(1 - 0.22) =
  • 0.78x

<u>Since the amount is known, the gross salary is:</u>

  • 078x = 2880
  • x = 2880/0.78
  • x = 3692 rounded to whole number

<u>Answer</u>: $3692

3 0
3 years ago
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