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Digiron [165]
3 years ago
9

Which simplified ratio correctly compares 5 meters to 100 centimeters

Mathematics
1 answer:
Greeley [361]3 years ago
5 0
5:1 since 100 cm is = to 1 meter
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Solve the equations
fgiga [73]
1. 15
2. -7
32. 6
You should get Photomath for these simple questions.
6 0
3 years ago
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Help ASAP please
Setler [38]
The length is 8 and the width is 4

P = L + L + W + W
P = 8 + 8 + 4 + 4
P = 16 + 4 + 4
P = 16 + 8
P = 24
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3 years ago
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A poll of 1068 adult Americans reveals that 48% of the voters surveyed prefer the Democratic candidate for the presidency. At a
zubka84 [21]

Answer:

Z = -1.333

P-value  = 0.09176

Decision Rule: Reject H_o if ∝  is greater than the P-value

Conclusion: Since P-value is >  the level of significance ∝, we fail to reject the null hypothesis, therefore there is insufficient evidence to conclude that at least half of all voters prefer the Democrat.

Step-by-step explanation:

Given that:

The sample size of the poll = 1068

The proportion of voters that preferred Democratic candidate is \hat p = 0.48

To test the claim that at least half of all voters prefer the Democrat, i.e 1/2 = 0.5

The null hypothesis and the alternative hypothesis can be computed as:

H_o : p \geq 0.50

H_1 : p < 0.50

Using the Z test statistics which can be expressed by the formula:

Z = \dfrac{\hat p - p}{\dfrac{\sqrt{p(1-p) }}{n}}}

Z = \dfrac{0.48 - 0.5}{\dfrac{\sqrt{0.5(1-0.5) }}{1068}}}

Z = \dfrac{-0.02}{\sqrt{\dfrac{{0.5(0.5) }}{1068}}}

Z = \dfrac{-0.02}{\sqrt{\dfrac{{0.25}}{1068}}}

Z = \dfrac{-0.02}{0.015}

Z = -1.333

P-value = P(Z< -1.33)

From z tables,

P-value  = 0.09176

The level of significance ∝ = 0.05

Decision Rule: Reject H_o if ∝  is greater than the P-value

Conclusion: Since P-value is >  the level of significance ∝, we fail to reject the null hypothesis, therefore there is insufficient evidence to conclude that at least half of all voters prefer the Democrat.

5 0
3 years ago
A random walk on the 2-dimensional integer lattice begins at the origin. At each step, the walker moves one unit either left, ri
NNADVOKAT [17]
The 9 combinations that exist for two movements:

R,R
R,L
R,U *
L,R
L,L
L,U
U,R *
U,L
U,U

Walker would only be able to make it to (1,1) with only 2 of these combinations.

So if he were only allowed to make two movements, his chances of arriving at (1,1) would be 2/9.
7 0
3 years ago
64,-48,36,-17... which formula can be used to describe the sequence?
photoshop1234 [79]

Answer:

Explicit formula is an = 64(-3/4)^(n-1).

Step-by-step explanation:

Looks like a geometric sequence with a negative common ratio.

-48/64 = - 3/4

36 / -48 = -3/4

Now -27/36 = -3/4 so I think there's a typo in the question. Its -27 not -17.

The required formula is 64(-3/4)^(n-1) .

7 0
3 years ago
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