3 years ago

Round to the nearest thousandth, then add: 8.23678 + 1.00012

Mathematics

1 answer:

Hunter-Best [27]3 years ago

3 0

Answer:

9.23712

Step-by-step explanation:

First it asks you to round to the nearest thousandth of 8.23678. So, with decimals it is tenths, hundreths, then thousandths. So the 3rd decimal place. You then will compare look at the 4th decimal place, 7, and compare it to 5. Since 7 is greater than 5, the 3rd decimal space goes up, being 8.237. Now you add the 1.00012 to get 9.23712.

You might be interested in

Marcus can buy 0.3 pound of sliced meat from a deli for $3.15. How much will 0.7 pound of sliced meat cost.

Zanzabum

Answer:7.35

Step-by-step explanation:

4 0

3 years ago

A clock was set on Monday at 8.30 a.m. On Tuesday, the following day, the clock showed 8.45 p.m. when the correct time was 8.30

lilavasa [31]

Step-by-step explanation:

It gained 15 minutes in 36 hours.

15/36 = x/24

36x = 360

x = 10 minutes

8 0

2 years ago

Historically, the proportion of people who trade in their old car to a car dealer when purchasing a new car is 48%. Over the pre

artcher [175]

Answer: The proportion of new car buyers that trade in their old car has statistically significantly decreased.

Step-by-step explanation:

Since we have given that

p = 48% = 0.48

n = 115

x = 46

So, $\hat{p}=\dfrac{46}{115}=0.40$

So, hypothesis would be

$H_0:\ p=\hat{p}\\\\H_a:p$

So, test value would be

$z=\dfrac{p-\hat{p}}{\sqrt{\dfrac{p(1-p)}{n}}}\\\z=\dfrac{0.48-0.40}{\sqrt{\dfrac{0.48\times 0.52}{115}}}\\\\z=\dfrac{0.08}{0.0466}\\\\z=1.72$

At 10% level of significance, critical value would be

z= 1.28

Since 1.28 < 1.72

So, we will reject the null hypothesis.

Hence, the proportion of new car buyers that trade in their old car has statistically significantly decreased.

6 0

3 years ago

What is 53,274 in expanded form?

sweet [91]

Answer:

50,000 + 3,000 + 200 + 70 + 4

Step-by-step explanation:

Expand. Set all non-zero digits by itself:

53,274 = 50,000 + 3,000 + 200 + 70 + 4

Remember to fill in 0 for all digits. They must keep their value.

7 0

3 years ago

Is this a linear function ?<br><img src="https://tex.z-dn.net/?f=y%20%3D%20%20-%203%20%5E%7B2%7D%20%20%2B%202" id="TexFormula1"

Slav-nsk [51]

No its not a linear function i think

8 0

3 years ago