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4 years ago

What is 7.5=k(3)?? Explain:))

2 answers:

7 0

Reorganize → 7.5 → 3k

7.5 + -3k which also can be placed as 3k + -3k

7.5 + -3k → 0

7.5 + -7.5 + 3k → 0 + -7.5

-3k → -7.5

Therefore, "K" would be 2.5

Nastasia [14]4 years ago

4 0

The problem should be 7.5=3k. So that means that you have to divide both sides by 3. Once you do that you should get 2.5 as your answer.

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A tree is 12 metres tall and casts a shadow 9 metres long. A building nearby casts a shadow that measures 21 metres. How tall is

Ulleksa [173]

The answer to this question is 16m

8 0

3 years ago

Pls help math

ankoles [38]

Answer: The shorter piece of the pipe is 9.25 inches long

Step-by-step explanation: First, we need to make an equation. 50 = 13 + 4x + x. We do subtraction first so it becomes 37 = 4x. Divide both sides by 4 so x = 9.25. The short piece of the pipe is 9.25 inches. Hope this helps!

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3 years ago

Solve the equation<br><br> x^2 + 5x + 4 = 0

alex41 [277]

X^2 + 5x + 4 = 0
(x + 4)(x + 1) = 0

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6 0

4 years ago

Can someone help me with this question

mr Goodwill [35]

Answer:

53.3

Step-by-step explanation:

34^2=1156

41^2=1681

1156+1681=2837

Square root of 2837 is 53.26 which rounded to the nearest tenth is 53.3

7 0

4 years ago

Which phrase does NOT describe a rational number?

kramer

Answer:

C. Non-repeating and non-terminating.

Step-by-step explanation:

We know that, rational numbers are of the form $\frac{p}{q}$ , where q≠0 and p,q are integers.

If we take q=1, then the rational number is $\frac{p}{1}$ = p, where p is an integer.

So, option B represents a rational number.

Let us consider, $\frac{25}{49}$ = 0.31645569620253.

So, we can see that a rational number can be written in the form of repeating and terminating decimals.

So, option A and D also represents a rational number.

Therefore, option C i.e. non-repeating and non-terminating does not represents a rational number as it represents an irrational number.

Hence, option C is correct.

3 0

4 years ago