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3 years ago

What is the simplest multicellular organism?

Mathematics

1 answer:

grigory [225]3 years ago

7 0

The simplest multicecullar organism is alga

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The mean of a normal probability distribution is 500 and the standard deviation is 10. about 95 percent of the observations lie

PIT_PIT [208]

Answer:

So about 95 percent of the observations lie between 480 and 520.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviations of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

The mean is 500 and the standard deviation is 10.

About 95 percent of the observations lie between what two values?

From the Empirical Rule, this is from 500 - 2*10 = 480 to 500 + 2*10 = 520.

So about 95 percent of the observations lie between 480 and 520.

5 0

3 years ago

What is 14/26 simplified?

Reika [66]

14/26 simplified is 7/13

4 0

2 years ago

Kylie explained that (negative 4 x + 9) squared will result in a difference of squares because (negative 4 x + 9) squared = (neg

Eva8 [605]

Given:

The given expression is:

$(-4x+9)^2$

According to Kylie,

$(-4x+9)^2=(-4x)^2+(9)^2$

$(-4x+9)^2=16x^2+81$

To find:

The correct statement for Kylie's explanation.

Solution:

We have,

$(-4x+9)^2$

According to the perfect square trinomial $(a+b)^2=a^2+2ab+b^2$ .

$(-4x+9)^2=(-4x)^2+2(-4x)(9)+(9)^2$

$(-4x+9)^2=16x^2-72x+81$

Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly.

Therefore, the correct option is C.

4 0

3 years ago

Read 2 more answers

Please help me guys

seraphim [82]

Area of pond:

A= $\pi r^{2}$

r=1,5m

A=3,142*1,5*1,5=7,0695

Area of pond with path

B= $\pi r^{2}$

r=50 cm+1,5m=0,5m+1,5m=2m

B=3,142*2*2=12,568

Area of path:

12,568-7,0695=5,4985=5,50

8 0

2 years ago

Read 2 more answers

Under her cell phone plan, Lily pays a flat cost of $55.50 per month and $4 per

TEA [102]

Answer:

Equation : y = 4x + 55.50

x = 1.9 gigabytes

Step-by-step explanation:

Given that:

Flat fee per month = $55.50

Cost per gigabyte = $4

Let,

x be the number of gigabytes.

y be the total cost

y = 4x + 55.50

Lily wants to keep her bill $63.10

63.10 = 4x + 55.50

63.10 - 55.50 = 4x

4x = 7.60

Dividing both sides by 4

$\frac{4x}{4} = \frac{7.60}{4}\\x=1.9$

Hence,

Equation : y = 4x + 55.50

x = 1.9 gigabytes

8 0

3 years ago

Read 2 more answers