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LUCKY_DIMON [66]
3 years ago
12

Alice planted some corn in the back yard and measures it’s height regularly. The last time she checked, the stalks were 60 inche

s tall. Now they are 72 inches tall. What is the percent of increase in the height of the stalks?
Mathematics
1 answer:
sdas [7]3 years ago
6 0

Answer:

The percent of increase in height of the stalks is 20%.

Step-by-step explanation:

The general formula for a percent increase is as follows:  (Original Amount - New Amount/Original Amount) x 100.  The original height of the stalks was 60 inches tall.  The new height of the stalks is 72 inches.  In the numerator of our fraction, we take 72-60 to get 12.  Our denominator is the original amount, or 60.  This gives us an overall fraction of 12/60, which when we divide gives us 0.2.  Once we multiply our decimal by 100, we get an overall percent increase of 20%.

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barxatty [35]
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5 0
3 years ago
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If you were to measure a person once a year, every year, from the ages of ten to twenty-five, would your ordered pairs of age an
Natasha2012 [34]

Answer:

Yes.

Step-by-step explanation:

First, make a graph, or imagine one.

I'll be making an example graph that only goes up to 13 here.

           Age - 10    11     12    13

Height

v

6ft

5ft

4ft    

           

If we mark this graph with points, you will find that there is only 1 point on each age line!

           Age - 10    11     12    13

Height

v

6ft                                          *

5ft                          *       *

4ft                  *

This means the answer is yes!

4 0
3 years ago
Read 2 more answers
Please help. 20 points and brainliest.
AlekseyPX

Answer:

18

Step-by-step explanation:

Plugging in 3 for n, we get:

t_n=2(3)^{3-1} \\\\t_n=2(3)^2 \\\\t_n=2(9) \\\\t_n=18

Hope this helps!

4 0
3 years ago
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Equation 3 should represent a parabola that is a vertical stretch of the parent function and has a y-intercept greater than 3 an
cestrela7 [59]

Answer:

The answer is given below

Step-by-step explanation:

The equation of a quadratic function is given by:

Ax² + Bx + C where A, B and C are the coefficients of the quadratic equation. If the coefficient of x² (i.e A) is a negative value then the graph opens down, the value of C determines the y intercept.

The equation of a parabola with  y-intercept greater than 3 and opens down can be given as -2x² -6x + 4. Since the coefficient of x² is negative it opens down and C = 4, it has a y intercept of 4 > 3

Let us assume a vertical stretch of 2, the new equation becomes:

2(-2x² -6x + 4)

-4x² - 12x + 8

To solve:

-4x² - 12x + 8 = 0

A = -4, B = -12 and C = 8

Using the quadratic formula:

x=\frac{-b \pm \sqrt{b^2-4ac} }{2a}\\ x=\frac{-(-12) \pm \sqrt{(-12)^2-4(-4)(8)} }{2(-4)}=\frac{12 \pm 16.49}{-8} \\x= -3.6 \ or \ x=0.6

4 0
3 years ago
If 1+4=5, 2+5=12, 3+6=21 then 8+11=?
Rashid [163]
In this pattern, 8+11= 8+11 + 77 (the previous answer) = 96
As you go to the next step in the pattern, you add the previous answer as well, so:
1+4=5
2+5= 2+5+5= 12
3+6= 3+6+12 = 21
4+7= 4+7+21 = 32
5+8= 5+8+32 = 45
6+9= 6+9+45 = 60
7+10= 7+10+60 = 77
So 8+11= 8+11+77 +96

I'm not sure how to write this mathematically as such, only in a logical way, but I hope it helps!
7 0
3 years ago
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