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3 years ago

Divide. Check the quotient. 1/4 ÷ 2 =

Mathematics

2 answers:

NemiM [27]3 years ago

7 0

Answer:

1/4 divided by 2/1

1/4 x 1/2 = 1/8

Anna [14]3 years ago

3 0

Answer:0.125

Step-by-step explanation:

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Tanya wants to have at least $75 for each of the 12 days of her trip if she saves $85 each month for 10 months will she save eno

Ray Of Light [21]

Answer:

She would not have enough

Step-by-step explanation:

85x10=$850 divided by 12=70.8

8 0

3 years ago

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

Determine the measurement of the unknown angle measures in the given figure.

Andrei [34K]

Answer:

To determine to measure of the unknown angle, be sure to use the total sum of 180°. If two angles are given, add them together and then subtract from 180°. If two angles are the same and unknown, subtract the known angle from 180° and then divide by 2.

Step-by-step explanation:

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4 years ago

What is the following product? 3 square root 5 x square root 2

lakkis [162]