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3 years ago

8

Help please in eed answers asap

2 answers:

pychu [463]3 years ago

6 0

A cube has the same length for its height, width, and length. So to find the volume, we multiply:

4.2 x 4.2 x 4.2 = 74.088 cm^3

pshichka [43]3 years ago

6 0

Answer:

74,088 cm³

Step-by-step explanation:

$whl = V \\ \\ [4,2]^{3} = 74,088$

I am joyous to assist you anytime.

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An arborist wants to prune an oak tree that has grown too tall. The arborist takes a 15-foot ladder and places it on a horizonta

SCORPION-xisa [38]

See the attached picture to better understand the problem

we know that
in the right triangle ABC
cos 70=adjacent side angle 70/hypotenuse
adjacent side angle 70=BC----> <span>distance between the ladder and the tree trunk
hypotenuse=AC------> 15 ft

cos 70=BC/AC-------> solve for BC
BC=AC*cos 70------> BC=15*cos 70-----> BC=5.13 ft

the answer is
the </span>distance between the ladder and the tree is 5.13 ft<span>

</span>

8 0

4 years ago

After six rolls of a standard die, the experimental probability of rolling a 3 is 26. What do you expect will happen to the expe

Anettt [7]

Answer:

The experimental probability should get closer to the theoretical probability of 1/6 with more trials.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Experimental probability:

The number of desired outcomes is taken from the results of an experiment.

Theoretical probability:

Found before the experiment happens.

For a large number of trials, the experimental probability will be closer to the theoretical probability.

In this question:

A standard die has 6 sides, one which is 3. So the theoretical probability of rolling a 3 is 1/6.

After six rolls of a standard die, the experimental probability of rolling a 3 is 2/6.

The experimental probability, after six rolls, is 2/6 = 1/3.

What do you expect will happen to the experimental probability if the die is rolled 90 more times?

As the number of trials increase, the experimental probability is expected to get closer to the theoretical probability, which in this case is 1/6.

6 0

3 years ago

If ON = 8x − 8, LM = 7x + 4, NM = x − 9, and OL = 5y − 7, find the values of x and y for which LMNO must be a parallelogram.

agasfer [191]

Step-by-step explanation:

<h2>Answer:-</h2><h3>Given :-</h3>

ON = 8x − 8
LM = 7x + 4
NM = x − 9
OL = 5y − 7

We need to find the value if x and y.

Concept:-

The sides of a parallelogram, where equal and where they are not.

Working with it:-

If LMNO is a parallelogram, the sides LM is opposite ON.

$7x + 4 = 8x - 8$

$7x - 8x = - 8 - 4$

$- x = - 12$

$\boxed{x = 12}$

Now, let us find y, in same way.

$x - 9 = 5y - 7$

Now, we found the value of x as 12, we will place it.

$12 - 9 = 5y - 7$

$3 = 5y - 7$

$3 + 7 = 5y$

$10 = 5y$

$\boxed{y = \frac{10}{5} = 2}$

So value of y is 2.

If viewing in Brainly app, extend $\longrightarrow$ side.

8 0

3 years ago

If you multiply me by 7 add 1 and divide by 4 you get 9 what number am I?

ladessa [460]

I am the number 5 hope this helps!

5 0

3 years ago

Read 2 more answers

Solve the equation -14=k+6

deff fn [24]

-14 -6= k
-20 = k
Answer: -20

3 0

4 years ago