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3 years ago

Can someone pleaseeee help and if you’re correct I’ll give u brainlist!

Mathematics

1 answer:

Oxana [17]3 years ago

5 0

Answer:

11/9,2

Step-by-step explanation:

Because we are doing this in school

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If 55% is 70.4 so what is hundred percent

hodyreva [135]

Answer:

55%=70.4

1%=70.4/55= 1.28

100%=1.28into 100 = 128

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3 years ago

Tr(n)*2 I NEE HELP ASAP

Nastasia [14]

Answer:

2TRN

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3 years ago

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The average distance to the center of the earth is 6,000 km when rounded to the nearest thousand, but 6,400 km when rounded to t

storchak [24]

The answer is B,happy i could help.

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3 years ago

Alice was told that her reading test score was 1 standard deviation below the mean. If test scores were approximately normal wit

denpristay [2]

Answer:

Step-by-step explanation:

Given that the population mean μ=86 and standard deviation σ=4 then one standard deviation below the mean means 4 less than 86 which is 82.

One standard deviation below the mean means z=-1 where z* is the z*score value in the standard normal distribution

Apply the formula

z=(x-μ)/σ

where x=Alice's score

μ=estimate mean

σ=standard deviation

z=(x-μ)/σ

-1=(x-86)/4----------------cross multiply

-1*4=x-86

-4=x-86

-4+86=x

82=x

7 0

3 years ago

A 2- inch radius circle is drawn inside a 6- inch radius circle. If you throw a dart at these circles, what is the probability y

GalinKa [24]

Answer:

The probability is $11.11\%$ or $1/9$

Step-by-step explanation:

we know that

To find the probability divide the area of the smaller circle by the area of the larger circle

The area of a circle is equal to

$A=\pi r^{2}$

step 1

Find the area of the smaller circle

$A=\pi (2)^{2}=4\pi\ in^{2}$

step 2

Find the area of the larger circle

$A=\pi (6)^{2}=36\pi\ in^{2}$

step 3

Divide the area of the smaller circle by the area of the larger circle

$4\pi\ in^{2}/36\pi\ in^{2}=1/9=11.11\%$

7 0

4 years ago