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Brums [2.3K]
3 years ago
15

I need help for Brainliest

Mathematics
2 answers:
adelina 88 [10]3 years ago
8 0

Answer:

    A  it is 1/8

Step-by-step explanation:

Olegator [25]3 years ago
6 0

Answer: 1/8

Step-by-step explanation:

If you look at the circle, there are 4 R, 1B, 2G, and 1Y which then equals 8. Therefor there is a 1/8 chance of the spinner landing on B.

Hope this helps...

Have a great day.

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Six friends visited a museum to
AleksAgata [21]

Answer:

3$

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
in a given year, the rate of flu infection for the general public was 8.3%. And sample of 200 people who receive the flu vaccine
makkiz [27]

Answer:

\fbox{\begin{minipage}{10em}Option A is correct\end{minipage}}

Step-by-step explanation:

<em>Step 1: Define significance level</em>

In this hypothesis testing problem, significance levels α is selected: 0.05, the associated z-value from Laplace table:

Φ(z) = α - 0.5 = 0.05 - 0.5 = -0.45

=> z = -1.645

<em>Step 2: Define null hypothesis (</em>H_{0}<em>) and alternative hypothesis (</em>H_{1}<em>)</em>

H_{0} : rate of flu infection p = 8.3% or 8.3/100 = 0.083

H_{1} : rate of flu infection p < 8.3% or 8.3/100 = 0.083

<em>Step 3: Apply the formula to check test statistic:</em>

K = \frac{f - p}{\sqrt{p(1 - p)} } * \sqrt{n}

with f is actual sampling percent, p is rate of flu infection of H_{0}, n is number of samples.

The null hypothesis will be rejected if K < z

<em>Step 4: Calculate the value of K and compare with </em>z

K = \frac{(\frac{3.5}{100})  - 0.083}{\sqrt{0.083(1 - 0.083)} } * \sqrt{200} = -2.46  

We have -2.46 < -1.645

=>This is good evidence to reject null hypothesis.

=> The actual rate is lower. (As H_{1} states)

Hope this helps!

:)

5 0
3 years ago
The mean age of Mr Jasmi,Miss Haslinda and their three children is 38 years. The mean age of their three children is 18 years. C
DedPeter [7]
Answer: 68

Explanation:

Let x be the age of Mr Jasmi
y be the age of Miss Haslinda
a + b + c be the age of the 3 children

We can write:
(x + y + a + b + c)/5 = 38

But:
(a + b + c)/3 = 18
a + b + c = 18(3)
a + b + c = 54

Substitute this value to our first equation

(x + y + 54)/5 = 38
x + y + 54 = 38(5)
x + y + 54 = 190
x + y = 190 - 54
x + y = 136

Thus:
Mean age of (mr jasmi and miss Linda) = (x+y)/2

But x + y = 136

=> mean age = 136/2 = 68
4 0
3 years ago
Annual insurance is 1,000 face value.
satela [25.4K]

Answer:

The correct answer is A.

Step-by-step explanation:

  • Premium for Company A :

face value = 1.86 , charges are 20% more for smokers

⇒ Charges = 20% of 250000 = $50000

Total charge = Charge × face value

                     = 50000 × 1.86 = $93000

  • Premium for Company B :

face value = 1.86 , charges are 18% more for smokers

⇒ Charges = 18% of 250000 = $45000

Total charge = Charge × face value

                     = 45000 × 1.86 = $83700

  • Premium for Company C :

face value = 2.07 , charges are 25% more for smokers

⇒ Charges = 25% of 250000 = $62500

Total charge = Charge × face value

                     = 62500 × 2.07 = $129375

  • Premium for Company D :

face value = 2.25 , charges are 15% more for smokers

⇒ Charges = 15% of 250000 = $37500

Total charge = Charge × face value

                     = 37500 × 2.25 = $84375

Hence, The option A. is correct that is Aaron is paying the smallest premium possible with company B



8 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST. please help
kondor19780726 [428]

Answer:

x = 11.4 m

y = 21 m

man's shadow =  9.6 m

Step-by-step explanation:

measure of third angle must be 50 degrees (180 - (40 + 90))

you can take tan50° = 15/y and 'y' will equal approx. 21

to find 'x' you can take tan21° = (21-x) /25 and 21 - x = 25 · tan21°

21 - x = 9.6

-x = -11.4

x = 11.4

man's shadow is the difference of 21 and 11.4, which is 9.6

4 0
2 years ago
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