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3 years ago

PLLEEEEASE I NEEEEED THIS

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

5 0

Answer:

x=6

Step-by-step explanation:

It's difficult to be certain without a picture but from your description but it seems as though the base is an isosceles right triangle whose congruent sides are labeled as "x". Thus the area of the base triangle would be 1/2 x². Since AD is 2AB, the height is 2x. the volume of a pyramid is V=1/3 Bh where B is the area of the base and h is the height of the pyramid. Substituting in the given values you get the equation 72= (1/3)(1/2 x²)(2x). This simplifies to 72=1/3 x³. Multiplying both sides of the equation by 3 gives 216=x³ then taking the cube root of both sides gives x=6

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Rename 3 1/2 as the sum of 2 fractions

DENIUS [597]

Answer:

I think it is 2 7/2, hopefully this is it!

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

How many ways can six of the letters of the word 'PALINDROME' be selected and written in a row if the first two letters must be

IgorC [24]

BY permutation, There are 90 ways by which the arrangement of 'PALINDROME' takes place.

According to the statement

we have given that the word 'PALINDROME' and we have to find that the in how much ways this word can be arranged.

So, For this purpose, we use the permutation here

So, A permutation is a mathematical technique that determines the number of possible arrangements.

The word given is:

'PALINDROME' this contain 10 words and given 2 words M and E are in any order.

So, Permutation takes place with $P^{10} _{2}$ .

So,

$P^{10} _{2}$

Now solve this then

$P^{10} _{2} = \frac{10!}{(10 -2) !}$

And

$P^{10} _{2} = \frac{10!}{(8) !}$

$P^{10} _{2} = \frac{10*9*8*7*6*5*4*3*2*1}{(8*7*6*5*4*3*2*1) !}$

And then after take common from them and cancel it the equation become

$P^{10} _{2} = 10*9$

$P^{10} _{2} = 90$

90 ways are comes as the output.

So, BY permutation, There are 90 ways by which the arrangement of 'PALINDROME' takes place.

Learn more about permutation here

brainly.com/question/11732255

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4 0

2 years ago

It also detects if you are right or wrong

garik1379 [7]

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According to the table ;

$f(0) = 6$

Let's check that in which of the equations it happens.

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A )

$y = f(x) = 6x + 4$

$f(0) = 6(0) + 4$

$f(0) = 0 + 4$

$f(0) = 4$

Wrong

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B )

$y = f(x) = 4x + 6$

$f(0) = 4(0) + 6$

$f(0) = 0 + 6$

$f(0) = 6$

Correct.

Thus this option is the correct answer.

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C )

Wrong

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3 0

3 years ago

On a map, 1.5 centimeters represents a distance of 45 kilometers. If two points on the map are 0.8 centimeters apart, what is th

Dmitry_Shevchenko [17]

Write a proportion
centimeters / kilometers
1.5 / 45 = 0.8 / x
cross multiply
(1.5 * x ) = (45 * 0.8)
1.5x = 36
divide both sides by 1.5
x = 24

The actual distance between the two points is 24 kilometers.

Hope this helps

6 0

3 years ago

A test is used to assess readiness for college. In a recent year, the mean test score was 21.2 and the standard deviation was4.

myrzilka [38]

Scores that are greater than 31 are significantly high.

Scores that are less than 11.4 are significantly low.

The test scores between 11.4 and 31 are not significantly low or significantly high.

<h3>How to Identify significance values?</h3>

We are given;

Standard deviation; s = 4.9

From the complete question, we are told to consider a value to be significantly low if its z score less than or equal to -2 or consider a value to be significantly high if its z score is greater than or equal to 2.

Thus;

2s = 2 * 4.9 = 9.8

Scores that are greater than 21.2 + 9.8 = 31 are significantly high.

Scores that are less than 21.2 - 9.8 = 11.4 are significantly low.

Thus, the test scores between 11.4 and 31 are not significantly low or significantly high.

Read more about significance values at; brainly.com/question/4621112

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6 0

2 years ago