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Lelu [443]
3 years ago
12

Evaluate the expression when n=3. 3 squared+ 16​

Mathematics
1 answer:
natita [175]3 years ago
5 0
3^2 + 16
= (3 • 3) + 16
= 9 + 16
= 25

~
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I really need this answer, its a quiz
Korvikt [17]

Step-by-step explanation:

hahahahahaha I finished math I don't want to see that

4 0
3 years ago
Future scientists: Education professionals refer to science, technology, engineering, and mathematics as the STEM disciplines. A
nalin [4]

Answer:

The probability that the proportion of freshmen in the sample of 150 who plan to major in a STEM discipline is between 0.29 and 0.37 is 0.3855

Step-by-step explanation:

The probability that the proportion of freshmen in the sample of 150 who plan to major in a STEM discipline is between 0.29 and 0.37 can be calculated by finding <em>z-scores</em> and subtracting P(z<z(0.29)) from P(z<z(0.37))

z-score in the binomial distribution of 28% of freshmen entering college in a recent year planned to major in a STEM discipline can be calculated using the equation:

z=\frac{p(s)-p}{\sqrt{\frac{p*(1-p)}{N} } } where

  • p(s) is proportion of freshmen we are interested (0.37, 0.29)
  • p is the proportion found in recent year found by research group (28% or 0.28)
  • N is the sample size (150)

Then z(0.37)=z=\frac{0.37-0.28}{\sqrt{\frac{0.28*0.72}{150} } } ≈ 2.4550 and P(z<2.4550)=0.993

z(0.29)=z=\frac{0.29-0.28}{\sqrt{\frac{0.28*0.72}{150} } } ≈ 0.2728 and P(z<0.2728)=0.6075

Then P(z(0.29)<z<z(0.37))=0.993-0.6075=0.3855

4 0
3 years ago
One day at football practice, Darrell, the kicker, punted the ball so that its height in feet above the ground was given by the
Tju [1.3M]

The height of the all after 2 secs is 86 feet

<h3>Functions and vales</h3>

Given the height in feet above the ground was given by the following function h(t) = -16t^2 + 75t

where:

t is the number of seconds since the ball was punted.

If the value of t = 2s, hence;

h(t) = -16t^2 + 75t

h(2) = -16(2)^2 + 75(2)

h(2) = -64 + 150
h(2) = 86

Hence the height of the all after 2 secs is 86 feet

Learn more about linear equation here: brainly.com/question/14323743

8 0
3 years ago
A rectangular wall is 16 feet wide by 24 feet long. A contractor is looking to tile the wall with square tiles with a side lengt
tamaranim1 [39]

Answer:

96 square tiles are needed

Step-by-step explanation:

To calculate this, the first thing we need to do is calculate the total area covered by the rectangular wall.

Mathematically, the area of the rectangle = 16 * 24 = 384 ft^2

The next thing we need to do is calculate the area of the square tiles = L^2 = 2^2 = 4 ft^2

the number of square tiles needed = Area of rectangular wall/Area of square tiles = 384/4 = 96

3 0
4 years ago
Find f(5) for f (x)=1/4 (2)^x
Ber [7]
F(5) = 1/4(2)^5
f(5) = 1/4 (32)
f(5) = 8

answer
A. 8
7 0
4 years ago
Read 2 more answers
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