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garri49 [273]
2 years ago
12

Help with this question pls

Mathematics
1 answer:
mr_godi [17]2 years ago
3 0

Answer:

128 customers

Step-by-step explanation:

Brainliest maybe? :)

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Solve for x: 6 over x equals 4 over 8
Talja [164]

Answer:

For the given expression, x = 12.

Step-by-step explanation:

Here, in the given expression:

6 over x equals 4 over 8.

Now, 6 over x = \frac{6}{x}

and  4 over 8  =  \frac{4}{8}

So, here  \frac{6}{x}   =\frac{4}{8}\\ \implies x = \frac{6 \times 8}{4}  = 12

⇒ x = 12

Hence, for the given expression, x = 12.

5 0
3 years ago
A survey of 132 students is selected randomly on a large university campus. They are asked if they use a laptop in class to take
ddd [48]

Answer:

For 90% CI = (0.428, 0.572)

For 98% CI = (0.399, 0.601)

The confidence interval (and Margin of error) reduces when 90% confidence level is used compared to when 98% confidence level is used.

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

p+/-z√(p(1-p)/n)

Given that;

Proportion p = 66/132 = 0.50

Number of samples n = 132

Confidence level = 90%

z(at 90% confidence) = 1.645

Substituting the values we have;

0.50 +/- 1.645√(0.50(1-0.50)/132)

0.50 +/- 1.645√(0.001893939393)

0.50 +/- 0.071589436011

0.50 +/- 0.072

(0.428, 0.572)

The 90% confidence level estimate of the true population proportion of students who responded "yes" is (0.428, 0.572)

For 90% CI = (0.428, 0.572)

For 98% CI = (0.399, 0.601)

The confidence interval (and Margin of error) reduces when 90% confidence level is used compared to when 98% confidence level is used.

7 0
3 years ago
10. Use the formula for the
dimulka [17.4K]

9514 1404 393

Answer:

  48 m³

Step-by-step explanation:

The correct formula for the volume of a pyramid is ...

  V = 1/3Bh

For the given values, the volume is ...

  V = 1/3(36 m²)(4 m) = 48 m³

3 0
3 years ago
Volanta purchase 200 beads for $48 to make necklaces if she needs to buy 25 more beads how much will she pay if she charge the s
Bogdan [553]
It's 48/200=0.24$ per a bead
She will have to pay 0.24*25=6$ 
4 0
3 years ago
Read 2 more answers
30 POINTS! NEED HELP ASAP
wolverine [178]
1. Answer: 15.7143

log (7x-10)=2

Use the identity: loga(x)=b = x=(a)(b)

7x-10=10^2

Evaluate the Power

7x-10=100

Addition Property of Equality

7x=110

Division Property of Equality

x=110/7 or 15.7143

2. Answer: 0.3107

log(3)+log(x^-3)=2
log(3x^-3)=2
log(3 x 1/x^3)=2
log(3/x^3)=2
3/x^3=10^2
3/x^3=100
3=100x^3
3/100=x^3
Answer Cube root 30 / 10 or 0.3107


3. Answer: 0.002

log(5) + log(x) = -2
log(5x)= -2
5x= 10^-2
5x=1/10^2
5x=1/100
x=1/500

Answer: 0.002

Honestly I could tell you the steps, but I do not have a lot of time. Sorry. I will comment later if you need the steps


8 0
3 years ago
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