1.2 × 10e4− 1.5 × 10e3− 2.2 × 10e2 in scientific notation

Mathematics

2 answers:

Rashid [163]4 years ago

8 0

That answer is correct, I checked:)

madreJ [45]4 years ago

3 0

Answer: 4.5×10^9

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the

. The sign of the exponent will depend on the direction you are moving the decimal.

4.5

×10

You might be interested in

suppose you spina spinner numbered 1 through 6, and you sa 3 five times in a row.What is the theoretical possibility of spinning

sertanlavr [38]

It would still be a 1/6th chance that you will gey the number three. i would say that just because you got 3 5 times in a row will not increase or decrease your chances of another 3.

5 0

4 years ago

An article measured speeds of vehicles on several roads in the state of Kansas. On South Cedar Niles, 73 vehicles were observed,

shutvik [7]

Answer:

The $p-$ value is $0.2996$ .

Step-by-step explanation:

This is a right-tailed test.

The null and alternative hypothesis is

$H_0:p=0.60\\H_a:p>0.60$

Point estimate $=$ sample proportion $=\hat{P}=x/n=0.630$

Test statistics

$z=\left(\hat{p}-p_{0}\right) / \sqrt{p}_{0^{*}}\left(1-p_{0)} / n\right.$\\$=(0.630-0.60) / \sqrt{(0.60 * 0.40) / 73}$\\$=0.526$\\P-value $=P(Z>z)$\\$=0.2996$\\The $\mathrm{P}$ -value is $0.2996$