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3 years ago

Please help me with this question!!

Mathematics

1 answer:

Otrada [13]3 years ago

5 0

I believe it is 24, but not sure at all

Explanation
• 8 minus 4 is 12 and 36 minus 12 is 24
•12 divide by 1.5 is 8 and 36 divide by 1.5 is 24

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Explain this to me please.

Margarita [4]

Answer:

f(x + 3) = x² + 3x - 2

General Formulas and Concepts:

Order of Operations: BPEMDAS
Expand by FOIL (First Outside Inside Last)

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = x² - 3x - 2

f(x + 3) is x = x + 3

Substitute: f(x + 3) = (x + 3)² - 3(x + 3) - 2
Expand by FOILing: f(x + 3) = x² + 6x + 9 - 3(x + 3) - 2
Distribute 3: f(x + 3) = x² + 6x + 9 - 3x - 9 - 2
Combine like terms: f(x + 3) = x² + 3x - 2

7 0

3 years ago

VUTI LLIUI 3.2 Mullework Score: 0.2 of 1 pt 18 of 30 (30 complete) HW Score: 68.52%, 20.56 of V3.2.31 Question Help The weight o

antiseptic1488 [7]

Answer:

VUTI LLIUI 3.2 Mullework Score: 0.2 of 1 pt 18 of 30 (30 complete) HW Score: 68.52%, 20.56 of V3.2.31 Question Help The weight of an organ in adult males has a bell-shaped distribution with a mean of 340 grams and a standard deviation of 15 grams. Use the empirical rule to determine the following. (a) About 99.7% of organs will be between what weights? (b) What percentage of organs weighs between 325 grams and 355 grams? (c) What percentage of organs weighs less than 325 grams or more than 355 grams? (d) What percentage of organs weighs between 325 grams and 385 grams? (a) and grams (Use ascending order.)

Step-by-step explanation:

4 0

3 years ago

Help please, i will love you forever

Natali [406]

Answer:

See Below

Step-by-step explanation:

I'm not going to do the homework for you, but I will complete three of the problems to help you understand the process.

We are converting between different units of measurement.

Here are the conversions to know:

12 inches = 1 foot

3 feet = 1 yard

1760 yard = 1 mile

5280 feet = 1 mile

We need to convert 7 feet into inches.

7 feet * 12 inches per foot = 84 inches

Now we know:

84 inches = 7 feet

What's the difference is between 84 inches, and 18 inches?

84 inches - 18 inches = 66 inches

We need 66 more inches to get a length of 7 feet.

We need to convert 2 miles into yards.

2 miles * 1760 yards per mile = 3520 yards.

Now we know:

3520 yards = 2 miles

What's the difference between 3520 yards and 2000 yards?

3520 yards - 2000 yards = 1520 yards

We need 1520 more yards to make 2 miles

We need to convert 108 inches into feet.

108 inches / 12 inches per foot = 9 feet

Since there is no remainder,

9 feet = 108 inches.

Hopefully you can see what is going on here and do the rest yourself.

4 0

4 years ago

It takes 5 hours for a messenger to reach its destination at a speed of 42 mph. If you want to make the journey in 3 and a half

Viktor [21]

Answer:

speed =60 mph

Step-by-step explanation:

speed = distance / time

$=( 42 \times 5) \div 3.5 \\ = 60 \\$

5 0

4 years ago

What is the standard error of a sampling distribution with a population standard deviation of 12 and the sample size of 81?

Marizza181 [45]

Answer: d. 1.3333

Step-by-step explanation:

We know that the standard error of a sampling distribution is given by :-

$S.E.=\dfrac{\sigma}{\sqrt{n}}$

, where $\sigma$ = Population standard deviation.

n= Sample size.

AS per given , we have

$\sigma =12$

n=81

Then, the standard error of a sampling distribution with a population standard deviation of 12 and the sample size of 81 will be :-

$S.E.=\dfrac{12}{\sqrt{81}}$

$=\dfrac{12}{\sqrt{9^2}}=\dfrac{12}{9}\\\\=\dfrac{4}{3}\\\\\approx1.3333$

Hence, the standard error of a sampling distribution with a population standard deviation of 12 and the sample size of 81 is 1.3333.

Thus the correct answer is d. 1.3333 .

6 0

3 years ago