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3 years ago

Estimate the measure of

Mathematics

2 answers:

Lelu [443]3 years ago

8 0

Answer:

148°

Step-by-step explanation:

it is very close to the 150 line and the option closest to 150 is 148

Art [367]3 years ago

8 0

The answer is 148 degrees
Hope this helps:)

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Researchers are studying two populations of sea turtles. In population D, 30 percent of the turtles have a shell length greater

jeka57 [31]

Answer:

a. 0.1917

b. 0.0914

d. 0.1580

Step-by-step explanation:

(a)

$P^D = \frac{15}{40} = 0.375$

$P^E = \frac{11}{60} =0.8133$

Mean, $\sigma_{P^D-P^E} = P^D-P^E$ = 0.375 -0.1833 = 0.1917

(b) sample prop ? Show your work and label each value.

Mean, = = 0.1917

Standard deviation = $\sqrt{\frac{P^D(1-P^D)}{N_D} +\frac{P^E(1-P^E)}{N_E} }$

Standard deviation = $\sqrt{\frac{0.375(1-0.375)}{40} +\frac{0.1833(1 - 0.1833)}{60} }$

Standard deviation = 0.0914

(c)

Normality condition:

np ≥ 10 and n(1-p) ≥ 10

Both the samples satisfy the normality condition.

(d)

The probability is obtained by calculating the z score,

$z = \frac{(P^D-P^E)-(P^d-P^e)}{\sigma_{P^D - P^E}}$

$z = \frac{0.1917-0.1}{0.0914}$ = 1.0029

P(z > 1.0029) = 1 - P(z ≤ 1.0029)

The probability is obtained from the z distribution table,

P(Z > 1.0029) = 1 - 0.8420 = 0.1580

3 0

3 years ago

The table shows the height of a ball that was dropped from a 380-foot tower. What was the ball's rate of fall during the first 3

Alex

Answer:

60ft/s

Step-by-step explanation:

To find the rate

rate = f(3) - f(0)

-------------

3-0

rate = 200-380

---------------

3-0

rate = -180/3 = -60 ft/s

The negative tells us it is falling

The fall falls 60ft/s

8 0

4 years ago

Read 2 more answers

A(-6)=-42<br> solve for a

Arte-miy333 [17]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

PLease Solve Quick 20 points! brainiest to whoever answers first and correctly!

Norma-Jean [14]

Answer:

f(2)=1/3

Step-by-step explanation:

x=3

f(sqrt(3+1))=1/3

f(sqrt(4))=1/3

f(2)=1/3

8 0

3 years ago

Topic: Finite Geometric Sums <br> what is the value of ..

Juli2301 [7.4K]

For i=1 ===> Sum=4

for i=2===> Sum=2

for I=3===> Sum=1

Hence the answer is 7

Or you could have use the Sum formula of a GP:

Sum = a(1-r)^n/(1-r), with a=1, r=1/2 & n=3

6 0

3 years ago