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Stels [109]
3 years ago
9

Given the function f(x)=6x^2+3 Find f(2a)

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
5 0

Answer:

24a^2 + 3.

Step-by-step explanation:

Substitute 2a for x in the function:

f(2a) = 6(2a)^2 + 3

=  6 * 4a^2 + 3

= 24a^2 + 3.

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How much interest will $1,200 earn over 10 years with 5% interest compounded annually
Amiraneli [1.4K]

Answer:

$1,954

Step-by-step explanation:

4 0
3 years ago
A study sampled 350 upperclassmen (Group 1) and 250 underclassmen (Group 2) at high schools around the city of Houston. The stud
iris [78.8K]

Answer:

-0.048

Do not reject  H_0:P_1-P_2=0

Step-by-step explanation:

From the question we are told that

Sample size n_1=350

Sample size n_2=250

Sample proportion 1  \hat P= \frac{25}{350} =>0.07

Sample proportion 2 \hat P= \frac{19}{250} =>0.076

95% confidence interval

Generally for 95% confidence level

Level of significance

 \alpha = 1-0.95=>0.05

 \alpha /2=\frac{0.05}{2} =>0.025

Therefore

Z_a_/_2=1.96

Generally the equation for confidence interval between P_1 - P_2  is mathematically given as

(\hat P_1-\hat P_2)\pm Z_a_/_2\sqrt{\frac{\hat P_1(1-\hat P_1)}{n_1}+\frac{\hat P_2(1-\hat P_2)}{n_2}  }

(0.07-0.076)\pm 1.96\sqrt{\frac{0.07(1-0.07)}{350}+\frac{0.076(1-0.076)}{250}  }

(0.07-0.076)\pm 1.96\sqrt{4.66896*10^-^4  }

(-0.006)\pm 0.042

(-0.006)- 0.042=>-0.048

(-0.006)+ 0.042=>0.036

Therefore

Confidence interval is

-0.048

Conclusion

Given the confidence interval has zero

Therefore do not reject  H_0:P_1-P_2=0

6 0
3 years ago
10 pts
aliya0001 [1]
Circumference = pi * diameter
diameter = 8.5; pi = 3.14

C = 3.14 * 8.5
C = 26.69 in = 26.7 in
3 0
3 years ago
Is 5 in the solution of x+3>8 explain. Thank youuu ​
tester [92]

No

X would have to equal 6 or greater as if x was 5

5+3 is the same as 8

6 0
3 years ago
Read 2 more answers
What is the slope and y-intercept of y = 1/4x + 8
icang [17]

Answer:

slope: 1/4x, Y intercept: 8

8 0
3 years ago
Read 2 more answers
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