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IrinaK [193]
3 years ago
10

(2x10^-2)(4x10^-3) scientific notation

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
8 0

Answer:

<h2>8 × 10⁻⁶</h2>

Step-by-step explanation:

(2\times10^{-2})(4\times10^{-3})\\\\=(2\times4)(10^{-2}\times10^{-4})\qquad\text{use}\ a^n\times a^m=a^{n+m}\\\\=8\times10^{-2+(-4)}\\\\=8\times10^{-6}

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Find the distance between the points -5,7 ; -1,3​
dimulka [17.4K]

Answer:

2, 4

Step-by-step explanation:

equation (x -2, y -4)

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3 years ago
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HELP!!!<br> Estimate:<br> 32% of 50 =
natali 33 [55]

15 is the answer

if its estimate, its basically asking 30% of 50

6 0
2 years ago
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Jenny is throwing a surprise birthday party for her best friend Katie. She has decided to make Katie’s favorite dish, meat loaf.
miskamm [114]

Answer:

The answer is below

Step-by-step explanation:

a) The recipe for the meat loaf used by Jenny can serve a total of 8 people. Since there are 40 people in total to serve, the number of each ingredient needed is:

Number of each ingredient = total number of people / number of people served by one recipe

Number of each ingredient = 40 / 8 = 5

b) Since each recipe contains 1 1/2 lb (1.5 lbs) of ground beef, the total amount of ground beef needed to feed everyone is:

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c) Since one serving would require 8 oz of milk. To serve everyone, the amount of milk needed is:

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6 0
2 years ago
A recently published research study looked at 3000 people over a period of 15 years and determined that those people who ate fas
Vaselesa [24]

Answer: a) sample

b) quantitive.

Step-by-step explanation:

Given: A recently published research study looked at 3000 people over a period of 15 years and determined that those people who ate fast food two or more times per week had gained an average of 10 pounds more than the group who ate fast food less than twice a week.

Here, population  = "people who ate fast food two or more times per week"

Since a census is the data of all members in a population whereas a sample is a subset of it.

Then, 3000 people constitute a sample as it is a subset of the population.

Since the researcher's point of interest it to measure average weight gain which is a quantitive measure.

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8 0
2 years ago
24. The function f(t) = -16t^2 +20t +4 gives the height of a ball, in feet, t seconds after it is tossed.
NeX [460]

Answer:

-12 feet per second

Step-by-step explanation:

average rate of change over [0.75, 1.25] = \frac{f(1.25) - f(0.75)}{1.25 - 0.75}

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1.25 - 0.75 = 0.5

\frac{f(1.25) - f(0.75)}{1.25 - 0.75} = \frac{-6}{0.5} = -12

7 0
3 years ago
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