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DaniilM [7]
2 years ago
4

For each conjecture, state the null and alternative

Mathematics
1 answer:
MAXImum [283]2 years ago
3 0

Answer:

A) Null hypothesis; H0: μ = 15.6 pounds

Alternative hypothesis; Ha: μ ≠ 15.6 pounds

B) Null hypothesis; H0: μ ≥ 10.8 miles

Alternative hypothesis; Ha: μ < 10.8 miles

C) Null hypothesis; H0: μ ≤ 390 acres

Alternative hypothesis; Ha: μ > 390 acres

D) Null hypothesis; H0: μ = 12603

Alternative hypothesis; Ha: μ ≠ 12603

E) Null hypothesis; H0: μ ≤ $24

Alternative hypothesis; Ha: μ > $24

Step-by-step explanation:

A) Null hypothesis; H0: μ = 15.6 pounds

Alternative hypothesis; Ha: μ ≠ 15.6 pounds

B) Null hypothesis; H0: μ ≥ 10.8 miles

Alternative hypothesis; Ha: μ < 10.8 miles

C) Null hypothesis; H0: μ ≤ 390 acres

Alternative hypothesis; Ha: μ > 390 acres

D) Null hypothesis; H0: μ = 12603

Alternative hypothesis; Ha: μ ≠ 12603

E) Null hypothesis; H0: μ ≤ $24

Alternative hypothesis; Ha: μ > $24

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If a hospital patient is given 100 milligrams of medicine, which leaves the bloodstream at 14% per hour, how many milligrams of
sergejj [24]

Answer:

<em>24.66 mg</em><em> of medicine will be left.</em>

Step-by-step explanation:

The given exponential equation is,

A(t)=ie^{rt}

Where,

A(t) = amount after time t

i = initial amount = 100 mg

r = rate of change = -14% = -0.14 (-ve is taken because the amount is decreasing)

t = time = 10 hours

Putting the values,

A(t)=100e^{-0.14\times 10}

=100e^{-1.4}

=24.66\ mg

3 0
2 years ago
Which rule describes the composition of transformations that maps pre-image ABCD to final image A"B"C"D"? Reflection across the
NeTakaya

Answer:

Your answer is the first point

A reflection across the x-axis and then a transformation of -6 and 1.

7 0
2 years ago
On a number​ line, the coordinates of​ X, Y,​ Z, and W are ​, ​, ​, and ​, respectively. Find the lengths of the two segments be
Arturiano [62]

Complete Question:

On a number​ line, the coordinates of​ X, Y,​ Z, and W are −8​, −5​, 4​, and 6​, respectively. Find the lengths of the two segments below. Then tell whether they are congruent. \overline{XY} and \overline{ZW}

Answer:

\overline{XY} = 3

\overline{ZW} = 2

They are not congruent

Step-by-step explanation:

Length of segment XY:

Coordinate of X = -8

Coordinate of Y = -5

\overline{XY} = |-8 -(-5)| = |-8 + 5| = 3

Length of ZW:

Coordinate of Z = 4

Coordinate of W = 6

\overline{ZW} = |4 - 6| = 2

\overline{XY} ≠ \overline{ZW}, therefore, they are not congruent.

3 0
2 years ago
Mafalda has a save percentage of 0.7380.7380, point, 738 so far this hockey season. Last season, her save percentage was 0.5850.
Snowcat [4.5K]

Answer:

0.153

Step-by-step explanation:

We have been given that Mafalda has a save percentage of 0.738 so far this hockey season. Last season, her save percentage was 0.585.

To find improvement in Mafalda's save percentage we will subtract last season's save percentage from this season's save percentage.

0.738-0.585=0.153

Therefore, Mafalda's save percentage improved by 0.153.

6 0
2 years ago
Read 2 more answers
Draw a bar model that shows how the number of hours in March compares with the number of hours in February of this year.
gogolik [260]
Okay so first we need to find how many days are in March and February. March has 31 days and because this year was a leap year February has 29 days.

The next step is to convert days to hours.
March: 31x24=744
February: 29x24=696

Now its time to graph

8 0
2 years ago
Read 2 more answers
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