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3 years ago

A fair cube has 2 blue sides, 2 red sides, and 2 green sides.

1 answer:

3 0

4/6 or 2/3. All you need to do is add the amount of blue and red sides from the cube and divide it by the total number of sides on a cube.

You can also say 66%

Hope this helps!! :)

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Helppppppp mathhhhhhhh

aivan3 [116]

Again using the Pythagorean Theorem:

h^2=x^2+y^2, where h is the hypotenuse of a right triangle and x and y are the side lengths. You are given that the hypotenuse is 34 ft and the base side is 16ft. Let h=34, x=16, and y=height, then you have:

34^2=16^2+y^2

y^2=34^2-16^2

y^2=1156-256

y^2=900

y=√900

y=30 ft

So the ladder will reach a spot 30 feet high on the building.

8 0

3 years ago

A 98% confidence interval for the mean of a population is to be constructed and must be accurate to within 0.3 unit. A prelimina

BaLLatris [955]

Answer:

$n = (\frac{2.326*1.7}{0.3})^2= 173.73$

And the value for n rounded up would be n = 174

Step-by-step explanation:

We have the following info given:

$s= 1.7$ previous estimation for the deviation

$ME=0.03$ the margin of error desired

$Conf =0.98$ represent the confidence

The Margin of error is given by:

$ME = z_{\alpha/2} \frac{\sigma}{\sqrt{n}}$

If we solve for the value of n we got:

$n= (\frac{z*\sigma}{ME})^2$

For this problem we know that the confidence is 98% so then the significance level would be $\alpha=0.02$ and the critical value would be:

$z_{\alpha/2}= 2.326$

And replacing we got:

$n = (\frac{2.326*1.7}{0.3})^2= 173.73$

And the value for n rounded up would be n = 174

3 0

3 years ago

Everett drove his motorcycle 16 miles in 4/5 of an hour. If he continue to drive at this rate how many miles would he drive in a

Elenna [48]

Answer:

20 miles in an hour.

Step-by-step explanation:

4/5=0.8

16/0.8=x/1

cross product

0.8*x=16*1

0.8x=16

x=16/0.8

x=20

4 0

3 years ago

What is the x-value of point A? On a coordinate plane, point A is 5 units to the right and 3 units up. >NEED HELP ASAP GIVING

vampirchik [111]

Answer:

A = (5, 3)

Step-by-step explanation:

The coordinates of a point are a pair of numbers that define its exact location on a two-dimensional plane.

The coordinates are written as an "ordered pair": (x, y)

The first number (x) specifies how far along the x-axis the point is. The second number (y) specifies how far up or down the y-axis to go.

From inspection, point A = (5, 3)

8 0

2 years ago

-3(8x – 10) = 3<br> help pls lol

uranmaximum [27]

Answer:

That's correct

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers