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Valentin [98]
3 years ago
13

True or falsee ????

Mathematics
2 answers:
fredd [130]3 years ago
4 0
True is the answer my friend.
Gemiola [76]3 years ago
3 0
The answer would be true
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This equation shows how the amount Tommy earns from babysitting depends on the number
telo118 [61]

d=18h

18=18h

Therefore, he only needs to babysit one hour before he can get 18 dollars

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2 years ago
Suppose a 95% confidence interval for a population proportion is (0.30, 0.60). Rewrite this interval in the form of margin of er
VashaNatasha [74]

Answer:

This interval in the form of margin of error is expressed as 0.45 ± 0.15.

p = 0.45

MOE = 0.15

Step-by-step explanation:

A confidence interval is calculated from a sample statistic (in this case, a sample proportion) and substracted or added a margin of error (MOE) for the lower and upper bound respectively.

This can be expressed as:

LL=p-MOE\\\\UL=p+MOE

If we substract the upper bound from the lower bound, we can calculate the margin of error as:

UL-LL=(p+MOE)-(p-MOE)=2\cdot MOE\\\\MOE=\dfrac{UL-LL}{2}=\dfrac{0.60-0.30}{2}=0.15

With this information, we can calculate the sample proportion p:

LL=p-MOE=p-0.15=0.30\\\\p=0.30+0.15=0.45

Then, we can express the confidence interval as:

p\;\pm\;MOE=0.45\pm0.15

5 0
3 years ago
The sand pit for the long jump has a width of 2.75 meters and a length of 9.54 meters. Just in case it rains, the principal want
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3 0
3 years ago
1. You have $10 saved. Each week you receive $5 in allowance. Let x represent the number of weeks you
bazaltina [42]
That looks hard sorry I don’t know answer good luck
7 0
3 years ago
Read 2 more answers
Y varíes directly as x. Y=112 when x=8. Find y when x=13
Alinara [238K]

Answer:

y = 182

Step-by-step explanation:

Given y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 112 when x = 8

k = \frac{y}{x} = \frac{112}{8} = 14

y = 14x ← equation of variation

When x = 13, then

y = 14 × 13 = 182

5 0
4 years ago
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