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Aloiza [94]
3 years ago
6

Can anybody please answer question 1?

Mathematics
1 answer:
sertanlavr [38]3 years ago
8 0
That would be a unique triangle
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Which of the following represents continuous data? A. Amount of coins in your pocket B. Time it takes to count the coins in your
Alchen [17]

Answer:

<em>Time it takes to count the coins in your pocket </em>

Step-by-step explanation:

4 0
3 years ago
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Since an instant replay system for tennis was introduced a a major tournament, men challenged 1390 referee calls, with the resul
alexandr402 [8]

Answer:

H0: μm − μw = 0

against the claim

Ha: μm − μw ≠ 0

Since the calculated value of z= 0.6177 does not lie in the critical region the null hypothesis is accepted that men and women have equal success in challenging calls.

Step-by-step explanation:

1) Let the null and alternate hypothesis be

H0: μm − μw = 0

against the claim

Ha: μm − μw ≠ 0

2) The significance level is set at 0.05

3) The critical region is z > + 1.96 and z< -1.96

4) The test statistic

Z= p1-p2/ sqrt [pcqc( 1/n1+ 1/n2)]

Here p1= 411/ 1390= 0.2956     and    p2= 213/753=0.2829

pc = 411+ 213/1390+753

pc=624/2143

pc= 0.2912

qc= 1-pc= 1-0.2912=0.7088

5) Calculations

Z= p1-p2/ sqrt [pcqc( 1/n1+ 1/n2)]

z= 0.2956-0.2829/√ 0.2912*0.7088( 1/1390+ 1/753)

z= 0.0127/ √0.2064 (0.00204)

z= 0.0127/0.02056

z= 0.6177

6) Conclusion

Since the calculated value of z= 0.6177 does not lie in the critical region the null hypothesis is accepted that men and women have equal success in challenging calls.

3 0
3 years ago
The value 5 is an upper bound for the zeros of the function shown below. f(x)=x^4+x^3 -11x^2-9x+18
Inessa [10]
Answer: True

Explanation:
According to the rational zeros theorem, if x=a is a zero of the function f(x), then f(a) = 0.

Given:  f(x) = x⁴ + x³ - 11x² - 9x + 18
From the calculator, obtain
f(5) = 448
f(4) = 126
f(3) = 0
f(2) = -20
f(1) = 0
f(0) = 18
f(-1) = 16
f(-2) = 0
f(-3) = 0

The polynomial is of degree 4, so it has at most 4 real zeros.
From the calculations, we found all 4 zeros as x = -3, -2, 1, and 3.
Therefore
f(x) = (x+3)(x+2)(x-1)(x-3).

For x>3, f(x)increases rapidly. Therefore there are no zeros for x>3.
The statement that x=5 is an upper bound for the zeros of f(x) is true.



7 0
3 years ago
Read 2 more answers
REMEMBER THAT THE RISE TESTS DO NOT GO TOWARDS YOUR GRADE, THEY ARE ONLY FOR THE SHOOLS TO SEE HOW WELL THEY ARE TEACHING YOU.
Nata [24]

Remember that the Rise tests are only for your state. Different states have different tests. My state has the Peaks test.

6 0
3 years ago
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Malcolm and Ravi raced each other.
Alona [7]

Answer: v1 = 200 km/h

v2 = 320 km/h

Malcolm's maximum speed was 200 km/h.

Ravi's maximum speed was 320 km/h.

Step-by-step explanation:

8 0
3 years ago
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