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3 years ago

Which numbers produce An irrational number when added to 0.4

Mathematics

2 answers:

ad-work [718]3 years ago

4 0

<span>3pi is an irrational number; the other options are not.</span>

Reil [10]3 years ago

4 0

Answer:

Any irrational number is added to 0.4 it will give an irrational number.

Step-by-step explanation:

We need to tell the number which produces an irrational number when added to 0.4.

An irrational number is a number which cannot be expressed in the form of fraction $\frac{x}{y}$ . In other words we can put that decimal expansion of an irrational number does not terminate or cease to end.

Now, if any irrational number is added to 0.4 it will give an irrational number.

Some examples could be: $\sqrt2, \sqrt3, \pi$ and any non-terminating number.

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The areas of two similar rectangles are 180 ft.² and 320 ft.². What scale factor applied to the smaller rectangle will give the

grigory [225]

The ratio of areas is the square of the scale factor, so that factor is
√(320/180) = 4/3

8 0

2 years ago

3.05 is greater than or less than 3.024

asambeis [7]

Answer:

3.024 is greater.

Step-by-step explanation:

3.05 is greater because it expanded is 3.050 vs. 3.024. 3.024 is closer to 1, so it's greater.

3 0

2 years ago

Can someone help me please!!

Lynna [10]

Answer:

b because the value are correct

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

6. A coupon offers $1.00 off the 16-ounce size. Which size is the better<br><br> buy then?

svlad2 [7]

Answer:

Both sizes are better because they cost Same.

Step-by-step explanation:

Consider the provided information.

A coupon offers $1.00 off the 16

Quantity Price

Pint 16 $3.98

Quart 32 $5.98

If he gets $1 off for the 16-ounce size. The price will be:

3.98-1=2.98

He needs to pay $2.98 for 16-ounce pint.

Now find which one is better by calculating the unit rate.

$\frac{Cost}{weight}=\frac{2.98 }{16}\approx0.186$

Therefore, the cost of 1lb would be $0.186

For Quart 32 find the unit rate as shown:

$\frac{Cost}{weight}=\frac{5.98}{32}\approx0.186$

Therefore, the cost of 1lb would be $0.186

Hence, both of the size are better as the unit rate is same.

4 0

3 years ago

The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there a

STatiana [176]

Answer:

24761 mosquitoes

5.4 days

Step-by-step explanation:

Let the equation that shows the population of the mosquitoes after x days,

$A=P(1+r)^x$

Where,

P = Initial population,

r = rate of increasing per day,

Here, A = 1000, when x = 0,

$1000=P(1+r)^0\implies P = 1000$

A = 1900 when x = 1,

$1900 = P(1+r)^1\implies 1900 = 1000(1+r)\implies 1.9 = 1 + r\implies r = 0.9$

Thus, the required function that represents the population after x days,

$A=1900(1+0.9)^x=1900(1.9)^x$

If x = 4,

The number of mosquito after 4 days,

$A=1900(1.9)^4 = 24760.99\approx 24761$

If A = 60,000,

$60000 = 1900(1.9)^x$

$\frac{600}{19}=1.9^x$

Taking log both sides,

$\log(\frac{600}{19})=x\log 1.9$

$\implies x = \frac{\log(\frac{600}{19})}{\log 1.9}=5.378\approx 5.4$

Thus, there will 60,000 mosquitoes after 5 days.

6 0

3 years ago