3 years ago

Simplify the expression. -2.4f + 0.3f-16 - 3 -2.4f + 0.3f-16 -3=

Mathematics

1 answer:

laila [671]3 years ago

3 0

Answer:

-2.1f-18

Step-by-step explanation:

-2.4f+0.3f=-2.1f.

-16-3=-19

You might be interested in

The lengths of the hypotenuse and one leg of a right

Pachacha [2.7K]

It’s the C because i did it in virtual class science

3 0

3 years ago

How many solutions does the following system have?

stepan [7]

The answer to that is no solution.

3 0

3 years ago

25 points+brainliest!

STatiana [176]

Answer:

an= 10n+90

a10= 190

8 0

3 years ago

Read 2 more answers

On a number line, the surface of a river is marked at −225 feet and the top of a building is marked at +18 feet, where 0 represe

gizmo_the_mogwai [7]

Answer:

225 feet below sea level, 18 feet above sea level.

Step-by-step explanation:

Negative represents below, if the 0 is sea level, and positive represents above.

7 0

4 years ago

Read 2 more answers

Guest ages at a ski mountain resort typically have a right-skewed distribution. Assume the standard deviation (σ) of age is 14.5

ValentinkaMS [17]

Answer: (30.49 years, 42.31 years)

Step-by-step explanation:

The formula to find the confidence interval is given by :-

$\overline{x}\pm z^*\dfrac{\sigma}{\sqrt{n}}.$

, where $\overline{x}$ = Sample mean

z* = Critical value.

$\sigma$ = Population standard deviation.

n= Sample size.

As per given , we have

$\overline{x}=36.4$

$\sigma=14.5$

n= 40

We know that the critical value for 99% confidence interval : z* = 2.576 (By z-table)

A 99 percent confidence interval for µ, the true mean age of guests will be :

$36.4\pm (2.576)\dfrac{14.5}{\sqrt{40}}\\\\ 36.4\pm (2.576)2.29265130362\\\\=36.4\pm5.90586975813\\\\\approx36.4\pm5.91\\\\=(36.4-5.91,\ 36.4+5.91)\\\\=(30.49,\ 42.31)$

∴ a 99 percent confidence interval for µ, the true mean age of guests = (30.49 years, 42.31 years)

7 0

3 years ago