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antiseptic1488 [7]
3 years ago
6

Plz answers ASAP. Ignore the graph on the bottom corner

Mathematics
1 answer:
lions [1.4K]3 years ago
6 0

Answer:

a) The independent variable is r, the radius. You can use any allowable number for r. The dependent variable is V, the volume. Once you choose a value for r, the value of V will depend on that value of r.

b) The domain is all real numbers greater than 0. A radius cannot be zero or a negative number.

c) The output of V(8) is the function V(r) evaluated at r = 8, so it is the volume of a sphere of radius 8 units.

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Rewrite each radian measure in degrees.<br><br> 5л/2
Alex_Xolod [135]

\frac{5\pi}{2}  \times  \frac{180}{\pi}  =  \frac{900\pi}{2\pi}  = 450 \: degrees

ok done. Thank to me :>

7 0
2 years ago
Tim's family is visiting Emeryville. They plan to see a movie and then explore the town. The
kap26 [50]

Answer. 4 hours

Step-by-step explanation:

48 + 8 + 8 + 8 + 8

$8 an hour and it $32  =4 hours and since they already using $48 for the movie if the they explore the town for 4 hours and then leave it will $80 in total spent

5 0
2 years ago
There are many ways to measure the reading ability of children. Research designed to improve reading performance is dependent on
ELEN [110]

Answer:

A 90% confidence interval to estimate the mean DRP score in Henrico County Schools  is =32±2.7280

i.e. C.I.  [29.3,34.7]

Hence the results are not significant.

Step-by-step explanation:

Given:

Total no of students =44

True mean =32

Standard deviation=11

And all 4 students score also given.

To Find:

90 % confidence interval and conclusion on it.

Solution:

Here for C.I. we required mean, standard deviation and no of students.

So mean =32,S.D.=11 and n=44

Therefore , For 90 % interval Zscore is Z=1.645

C.I.=mean±Z[Standard  deviation/Sqrt(n)]

=32±1.645[11/Sqrt(44)]

=32±1.645[1.6583]

=32±2.7280

i.e. C.I.  [29.3,34.7]

Now Here to commit on calculated interval we should check  value of Z-score

So we need to calculate the sample mean.

Sample mean =Sum of all values /Total no of values.

=[40+ 26 +39+ 14+ 42+ 18 +25+ 43+ 46 +27 +19+ 47+ 19 +26+ 35 +34+ 15+ 44 40+ 38+ 31+ 46 +52 +25+ 35 +35+ 33 +29 +34 +41 +49+ 28+ 42+ 47 +35 +48 +22 33+ 41 +51 +27 +14+ 54 +45]/44

=34.86

Z-score=(sample mean -true mean)/[standard deviation/Sqrt(n)]

=(34.86-32)/[11/Sqrt(44)]

Z=1.72465

For ,

P(Z≥1.72465)=0.08544

For 0.05 significance level  the results are not significant at  p<0.01.

Researcher claimed mean is not correct upto 0.05 significant level

i.e calculated mean and Sample mean are different.

Hence the results are not significant.

6 0
3 years ago
HELPPPPPP PLEASe!!!!!!!!
olga nikolaevna [1]

Answer:

Cos x

Step-by-step explanation:

7 0
3 years ago
6. (03.06)<br> Which of the following will give you the Incorrect slope? (1 point)
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The last one will give the incorrect slope

4 0
2 years ago
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