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3 years ago

What is 725000000 in scientific noation

Mathematics

2 answers:

Dominik [7]3 years ago

8 0

Answer:

$7.25$ x $10^8$

Step-by-step explanation:

You move the decimal to the right of the first non-zero digit. Count the spaces you moved it, remembering the LARD rule, and that is the power of ten.

Digiron [165]3 years ago

3 0

Answer:

Step-by-step explanation:

hello :

725000000=7.25×10^8

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Four houses in a row are each to be painted with one of the colors red, blue, green, and yellow. In how many different ways can

Natali [406]

Answer:

Possible ways to paint the house is 108

Step-by-step explanation:

Total number of houses to be painted=4

Total number of colours to b used(red,blue,green and yellow)=4

Number of ways to paint the first house=4

Number of ways to paint the second house=3

Number of ways to paint the third house=3

Number of ways to paint the fourth house=3

Total number of ways to paint the 4 houses=4×3^3=108 ways.

3 0

3 years ago

PLZ HELP NOOOOW!!

patriot [66]

Hey there! The answer is 1 1/8 mile.

To find the amount of miles Sarah ran, we need to multipy the length of the track by the times she run that distance.
$1 \frac{1}{2} \times \frac{3}{4} = \frac{3}{2} \times \frac{3}{4} = \frac{9}{8} = 1 \frac{1}{8}$

Rembember: multiplying a fraction means you have to multiply the <span>numerator by the numerator (of the other fraction) and the denominator by the denominator (of the other fraction)

</span>The answer is 1 1/8 mile.
~ Hope this helps you!

3 0

3 years ago

0.125 as a fraction and percentage

tresset_1 [31]

Answer:

1/8 and 12.5%

Step-by-step explanation:

5 0

3 years ago

Cindy went to Maggie Moo's for an ice cream cone after school. The ice cream cone had a radius of 3 inch, a

anzhelika [568]

Answer: The cone can hold 18.84 cubic inches of ice cream.

Step-by-step explanation:

Hi, to answer this question we have to find the volume of a cone, using only the height (h) and the radius(r) values.

Volume of a cone (V) = 1/3 π r² h

Replacing with the values given:

V = 1/3 (3.14) (3)² 2

Solving:

V = 1/3 (3.14) (9) 2

V = 18.84 cubic inches

In conclusion, the cone can hold 18.84 cubic inches of ice cream.

7 0

3 years ago

Among the four northwestern states, Washington has 51% of the total population, Oregon has 30%, Idaho has 11%, and Montana has 8

morpeh [17]

Answer:

Step-by-step explanation:

H₀ : The distribution of the sample agrees with the population distribution.

H₁ : the distribution of the does not agree with the population distribution.

Using the Chi-square test statistics

we will compute the expected frequencies

Now expected frequency for Washington will be

Fe = Npi = 1000×51% = 5100

expected frequency for Oregon

Fe = Npi = 1000×30% = 300

expected frequency for Idaho

Fe = Npi = 1000×11% = 110

expected frequency for Montana

Fe = Npi = 1000×8% = 80

The Chi=square test statistics is;

x² = ∑ [ (Fo - Fe)² / Fe )

now we substitute

Given our Fo ( 450 in Washington, 340 in Oregon, 150 in Idaho, and 60 in Montana) from the question

x² = (450-510)²/510 + (340-300)²/300 + (150-110)²/110 + (60-80)²/80

x²= 31.9376

so the chi-square test statistics is 31.9376

Now the chi-square critical value

first we compute for degree of freedom

d.f = k -1 = 4 - 1 = 3

So from the critical value table, degree of freedom 3 and significance level 0.05,

the chi-square critical value is 7.8147

Therefore chi-square test statistics 31.9376 is greater than the chi-square critical value 7.8147, so NULL HYPOTHESIS IS REJECTED at 5% significance.

There is sufficient evidence to warrant rejection of the claim that the distribution of the sample agrees with the distribution of the state populations.

3 0

3 years ago