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4 years ago

Which value of x is in the domain of f(x) = \sqrt {x - 8}f(x)=

Mathematics

1 answer:

Mice21 [21]4 years ago

5 0

The answer is A hope this helped you

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In a scaled drawing the width of a sofa is 15 centimeters The width of the actual sofa is 150 centimeters. What is the scale of

Delvig [45]

The scale of the drawing is 10x smaller compared to the one in real life

8 0

3 years ago

The interest on a $6,000, 6%, 60-day note receivable is

Musya8 [376]

Answer:

The answer is c or $180

Step-by-step explanation:

4 0

3 years ago

Ryan drove 5 3/4 miles to the bank , 6 1/2 miles to the post office and 4 1/2 miles to the park. What was the total distance Rya

OLga [1]

Answer:

16 3/4 miles

Step-by-step explanation:

So the goal of this problem is to get Ryan's total driving distance which was made up of:

A 5 3/4 mile trip

A 6 1/2 mile trip

A 4 1/2 mile trip

Start by adding the last two since they have the same denominator

6 1/2 + 4 1/2 = 10 2/2 = 11

11 miles plus 5 3/4 miles

11 + 5 3/4 = 16 3/4

He drove at total of 16 3/4 miles

6 0

3 years ago

Higher Order Thinking Mr. Kent teaches

Tresset [83]

Answer:

6 hours and 20 minutes

Step-by-step explanation:

7*50=350 so 350+30=380 then 380/60= 6 hours and 20 minutes

4 0

3 years ago

Alma is estimating the proportion of students in her school district who, in the past month, read at least 1 book. From a random

Maurinko [17]

Answer:

$(0.64 +1.645 \sqrt{\frac{0.64(0.36)}{50} })$

90 percent confidence interval for the proportion of all students in her district who read at least 1 book last month

(0.52846 , 0.75166)

Step-by-step explanation:

Step:-1

Given that the random sample size 'n' = 50

The sample proportion

$p^{-} = \frac{32}{50} = 0.64$

90 percent confidence interval for the proportion of all students in her district who read at least 1 book last month

$(p^{-} - Z_{0.90} \sqrt{\frac{p(1-p)}{n}, } , p^{-} +Z_{0.90} \sqrt{\frac{p(1-p)}{n} })$

Step(ii):-

Level of significance = 0.90

Z₀.₉₀ = 1.645

$(0.64 - 1.645 \sqrt{\frac{0.64(1-0.64)}{50}, } , 0.64 +1.645 \sqrt{\frac{0.64(1-0.64)}{50} })$

$(0.64 - 1.645 \sqrt{\frac{0.64(0.36)}{50}, } , 0.64 +1.645 \sqrt{\frac{0.64(0.36)}{50} })$

(0.64 -1.645(0.06788) , (0.64 + 1.645(0.06788)

(0.52846 , 0.75166)

Final answer:-

90 percent confidence interval for the proportion of all students in her district who read at least 1 book last month

(0.52846 , 0.75166)

5 0

3 years ago