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Minchanka [31]
2 years ago
5

Hey quyzz. Can someone pls help.

Mathematics
1 answer:
Alex_Xolod [135]2 years ago
8 0

<h3>\frac{27}{340} ✅</h3>

Step-by-step explanation:

( \frac{2 \frac{3}{3} }{4}  -  \frac{3}{10} ) \times  \frac{3}{17} \\  = ( \frac{ \frac{9}{3} }{4}   -  \frac{3}{10})  \times  \frac{3}{17}  \\  = ( \frac{9}{3 \times 4}   -  \frac{3}{10}) \times  \frac{3}{17}  \\  = (  \frac{9}{12}  -  \frac{3}{10} ) \times  \frac{3}{17}  \\  = ( \frac{9 \times 5}{12 \times 5}  -  \frac{3 \times 6}{10 \times 6} ) \times  \frac{3}{17}  \\  = ( \frac{45 - 18}{60} ) \times  \frac{3}{17}  \\  =  \frac{27}{60}  \times  \frac{3}{17}  \\  =  \frac{81}{1020} \\  =  \frac{27}{340}

\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘

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An agency is studying the income of store managers in the retail industry. A random sample of 25 managers reveals a sample mean
aalyn [17]

Answer:

The Confidence Interval = ($44,745.55 , $46,094.45)

Step-by-step explanation:

The formula for Confidence Interval =

Confidence Interval = Mean ± z × Standard deviation/√n

Where n = number of samples = 25 managers

Standard deviation = $2,050

Mean = $45,420

z = z score of the given confidence interval

= z score of 90% confidence interval

= 1.645

Confidence Interval = $45,420 ± 1.645 × $2,050/√25

= $45,420 ± 1.645 × $2,050/5

= $45,420 ± 674.45

Confidence Interval =

$45,420 - 674.45 = $44,745.55

$45,420 + 674.45 = $46,094.45

Therefore, the Confidence Interval = ($44,745.55 , $46,094.45)

3 0
3 years ago
Find 100,000 more than 3,489,234.
EastWind [94]

Answer:

The answer is 3,589,234

Step-by-step explanation:

Because it basically means addition meaning you just have to add it 3,489,234 + 100,000 gives you the answer

7 0
3 years ago
Use the diagram of the right triangle above and round your answer to the nearest hundredth.
Svetlanka [38]

Option a: 17.32 \ {m} is the length of b

Explanation:

The angle of B is \angle B=60^{\circ} and a=10 \ m

We need to determine the length of b.

First, let us determine the angle of A.

Since, ABC is a triangle, then all the angles add up to 180°

Thus, we have,

\angle A+\angle B+\angle C=180^{\circ}

\angle A+60^{\circ}+90^{\circ}=180^{\circ}

       \angle A+150^{\circ}=180^{\circ}

                   \angle A=30^{\circ}

Thus, the angle of A is \angle A=30^{\circ}

Now, we shall determine the length of b using the sine law formula.

The formula for sine law is given by,

\frac{a}{\sin A}=\frac{b}{\sin B}

where a=10 \ m , \angle A=30^{\circ} , \angle B=60^{\circ}

Thus, we have,

\frac{10}{\sin 30}=\frac{b}{\sin 60}

Simplifying, we get,

\frac{10}{0.5}=\frac{b}{0.866}

Multiplying both sides by 0.866, we get,

\frac{10\times0.866}{0.5}=b

Multiplying the numerator, we have,

\frac{8.66}{0.5}=b

Dividing, we get,

17.32=b

Thus, the length of b is b=17.32 \ m

Hence, Option a is the correct answer.

7 0
3 years ago
Heidi buys shirts for $20 and resells for $24. What is the percentage of Heidi's markup? Plz help me!!
Vadim26 [7]

 20% because 4 dollars is 1/5 of 20


8 0
3 years ago
Given: 4 &lt; a &lt; 5, 2 &lt; b &lt; 4 Find: a/3b - b/3a<br><br> Please answer fast!!
vesna_86 [32]

Answer:

answer

Step-by-step explanation:

you have to subtract 3b from 3a so the answer is 0.

7 0
3 years ago
Read 2 more answers
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