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2 years ago

May i have help with this

Mathematics

1 answer:

Leya [2.2K]2 years ago

3 0

Answer: D. 7^11

Step-by-step explanation:

For exponents with the same base, we just add the exponents and keep the same base. 7 is the same base; therefore 5+6=11 which means the answer is 7^11

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The Intelligence Quotient (IQ) test scores for adults are normally distributed with a population mean of 100 and a population st

saveliy_v [14]

Answer:

The probability is 0.6796

Step-by-step explanation:

Given

Population Mean - 100

Population Standard Deviation - 25

As we know

z = x-μ/σ, where:

z is the standard score

x is the raw score

μ is the population mean

σ is the population standard deviation

Z value for mean of sample = 95

z1 = -100+95/25 = -5/25 = -0.2

P value for Z = -0.2 is 0.2912

Z2 = 100-105/25 = 0.2

P(z > 0.2 = 1 - P(z ≤ 0.2) = 1 - 0.0294 = 0.9706

P(-0.2 < z < 0.2) = 0.9706 - 0.2912= 0.6796

The probability is 0.6796

5 0

2 years ago

The picture below shows a container that Rene uses to freeze water: A cylinder is shown with base diameter of 6 centimeters and

Rama09 [41]

it would be 9.

2000/226.2 = 8.84 == 9

4 0

2 years ago

Read 2 more answers

Given that f(x) = logo x, write a function that translates f(x) down 4 units and then

DaniilM [7]

Answer:

Answer 2/B

Step-by-step explanation:

The one with Parentheses

-(log6 x-4)

5 0

2 years ago

23=30-g;6,7,8 what is the solution

Naya [18.7K]

7
30-7=23
7=g
Solve the equaton backwards to get the answer

3 0

2 years ago

Ming works as a quality assurance analyst at a bottling factory. She wants to use a one-sample z interval to estimate what propo

Nastasia [14]

Answer:

Sample size is $n=423$

Step-by-step explanation:

Given that,

Margin of error $=4$ %

Confidence level $=90$ %

Suppose, sample proportion $=0.5$

i.e. $\hat{P}=0.5$

We know that,

Margin of error $=2^*\sqrt{\frac{\hat{p}(1-\hat{p})}{n} }$

∴ $1.64\sqrt{\frac{0.5(0.5)}{n} } \leq 4\%$

$\Rightarrow 1.64\sqrt{\frac{0.25}{n} } \leq 0.04$

$\Rightarrow \frac{0.5}{\sqrt{n} } \leq \frac{0.04}{1.64}$

$\Rightarrow \frac{0.5}{\sqrt{n} } \leq 0.0243$

$\Rightarrow \sqrt{n}\geq \frac{0.5}{0.0243}$

$\Rightarrow \sqrt{n}\geq 20.57$

squaring on both side,

∴ $n=423.1249$

Hence, the sample size is,

$n=423$

Hence, the correct option is $(b).$

7 0

3 years ago