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2 years ago

MDEG

Mathematics

1 answer:

Margaret [11]2 years ago

5 0

The answer would be 84

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in a harris poll adults were asked if they are in favor abolishing the penny . Among the responses, 1243 answeered no 481 answer

Dovator [93]

Given that 481 out 0f 1,243 respondents answered 'yes', the sample proportion is given by:

$\hat{p}= \frac{481}{1243} \approx0.39$

The notation used for the sample proportion is $\hat{p}$ .

3 0

3 years ago

Resultado de (+23) – (-34)

Mandarinka [93]

Answer:

Step-by-step explanation:

23-(-34) = 57

(finge que el -(- es un plus)

6 0

2 years ago

Read 2 more answers

Suppose that p(x) is the density function for heights of American men, in inches, and suppose that p(69)=0.19. Think carefully a

lbvjy [14]

Answer:

15,2% of American men are between 68.6 and 69.4 inches tall.

Step-by-step explanation:

p(69)=0.19 tells you that 19% of all American men are 69in tall. Now, we want to know what percentage of those men are exactly between 68.6 and 69.4 inches tall. We only need to multiply the given density function by the gap between the two heights we are looking for, so:

0.19 * (69.4-68.6) = 0.19*0.8 = 0.152*100 = 15,2%

4 0

3 years ago

Which graph represents the function f(x)= 0.2^x + 3

Dennis_Churaev [7]

The third graph or bottom left graph represents $f(x) = 0.2^{x} + 3.$

Step-by-step explanation:

Step 1:

To determine which of the given graphs represents the equation $f(x) = 0.2^{x} + 3$ , we substitute some values in the place of x.

When $x=0,$ $f(x) = 0.2^{x} + 3, f(0) = 0.2^{0} + 3= 4.$

Anything with an exponent of 0 will equal 1.

So the graphs on the right side cannot be the answers.

Step 2:

Now we substitute another value to determine which graph represents $f(x) = 0.2^{x} + 3.$

When $x=1,$ $f(x) = 0.2^{x} + 3, f(1) = 0.2^{1} + 3= 4.2.$

The value of f(x) when $x=1$ is lesser than the value of f(x) when $x =0.$

So the third graph or bottom left graph represents $f(x) = 0.2^{x} + 3.$

5 0

3 years ago

A man has 10 more dimes than quarters. he has $2.75 how many of each coin does he have?

Anton [14]

5 quarters, 15 dimes

q + 10 = d
0.25q + 0.1d = 2.75

0.25q + 0.1(q + 10) = 2.75
0.25q + 0.1q + 1 = 2.75
0.35q = 1.75
q = 5

Check:

0.25(5)+ 0.1(15)= 2.75
1.25 + 1.5 = 2.75
2.75 = 2.75 :)

4 0

2 years ago