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3 years ago

10

How do I find the surface area of this?! Please PLEASE answer me! Do not give links.

2 answers:

Anni [7]3 years ago

7 0

Find the surface area of both blocks individually. The way you find surface area is by finding the area of each side then add them all together. But because they are right next to each other, after you find the finally surface area you will have to subtract the left side of the green cube. Hope this helped

gulaghasi [49]3 years ago

3 0

Answer:

You find the surface area with:

10*2+10*2+4*2+4*2+2*2+2*2+4*7+4*7+4*4+4*4 or in short 152 in^2.

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A four year old is going to spin around with his arms stretched out 100 times. From past experience, his father knows it takes a

Sati [7]

Answer:

$P(X \geq0.55) \leq 0.22$

Step-by-step explanation:

Using central Limit Theorem (CLT), The sum of 100 random variables;

$Y=X_1+X_2+...+X_{100}$ is approximately normally distributed with

Y ~ N (100 × $\frac{1}{3^2}$ ) = N ( 50, $\frac{100}{9}$ )

The approximate probability that it will take this child over 55 seconds to complete spinning can be determined as follows;

N ( 50, $\frac{100}{9}$ )

$P(Y>55) =P(Z>\frac{55-50}{10/3})$

$P(Y>55) =P(Z>1.5)$

$P(Y>55) =\phi (-1.5)$

$P(Y>55) =0.0668$

Using Chebyshev's inequality:

$P(|X-\mu\geq K)\leq \frac{\sigma^2}{K^2}$

Let assume that X has a symmetric distribution:

Then:

$2P(X-\mu\geq K)\leq) \frac{\sigma^2}{K^2}$

$2P(X \geq \mu+K)\leq) \frac{\sigma^2}{K^2}$

$2P(X\geq0.5+0.05)\leq \frac{\frac{1}{\frac{3^2}{100} } }{0.05^2}$ where: ( $\sigma^2 = \frac{1}{3^2/100}$ )

$P(X \geq0.55) \leq 0.22$

6 0

3 years ago

1) Original price of a goldfish: $7.70<br>Discount: 30%

Leni [432]

Answer:

$5.39

Step-by-step explanation:

In order to solve for this equation, we are going to multiply 7.70 by 0.3 to find how much money was taken which was 2.31.

Subtract2.31 from 7.70 to recieve your new price :)

$7.70*0.3=2.31\\7.70-2.31=5.39$

Hope this Helps!

8 0

3 years ago

2x +(3y+8z)=(2x+3y)+8z an example of which property?

lyudmila [28]

C. Associative Property

8 0

3 years ago

The record low temperature in Kansas is -40°F. The record low temperature in Florida is -2°F. What is the difference between the

MatroZZZ [7]

The answer is 38 degrees. It WOULD be -38, but difference can not be negative.

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2 years ago

Joshua sells a pack of pens for $3.15, which is 5 percent more than he pays for them. Which equation will help find x, the amoun

vesna_86 [32]

Answer:

C.

x + 0.05x = 3.15, which has one solution

Step-by-step explanation:

Let x = the price Joshua pays for the pack of pens

He add 5% (=.05 in decimal form)

That is x* .05

The new cost is 3.15

x+.05x = 3.15

This will have one solution

3 0

3 years ago

Read 2 more answers