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3 years ago

What are the subsets of the real number system that 0 belongs

Mathematics

2 answers:

Gnoma [55]3 years ago

8 0

Answer:

A natural number is a rational number. An irrational number is a real number. Zero is a natural number.

Step-by-step explanation:

⇵∝

STALIN [3.7K]3 years ago

3 0

Answer:

Whole numbers, integers, rational numbers, and real numbers

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What is the vertex of the parabola whose equation is y = (x + 1)2 + 3?

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Answer:

The answer would be -1,-3.

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3 years ago

X^2-6x+9 quadratic equations

kipiarov [429]

think the answer is
x=6+sqrt0/2 x=6-sqrt0/2 both equaling into 3.

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3 years ago

Cassie has test grades of 62, 85 and 89 on the first three tests in herpre-algebra class. What are the possible scores she can m

Vsevolod [243]

Explanation:

The test grade for 1st three tests = 62, 85, 89

Let the fourth test score = x

The result we hoping to get is grade B.

Let's find the average of the four test score

$\text{Average = }\frac{Su\text{ m of all test score}}{nu\text{mber of test score}}$ $\begin{gathered} s\text{ um of test scores = 62 + 85 + 89 + x} \\ nu\text{mber of test score = 4} \\ \frac{\text{62 + 85 + 89 + x}}{4}=\text{ Average} \end{gathered}$ $\begin{gathered} A\text{ grade B represents atleast 80} \\ \text{Atleast represents }\ge \\ \frac{\text{62 + 85 + 89 + x}}{4}\text{ }\ge\text{ 80} \\ \frac{\text{236 + x}}{4}\text{ }\ge\text{ 80} \end{gathered}$ $\begin{gathered} \text{236 + x }\ge\text{ }80(4) \\ \text{236 + x }\ge\text{ }320 \\ \text{subtract }236\text{ from both sides:} \\ 236\text{ - 236 + x }\ge\text{ }320\text{ - 23}6 \\ x\text{ }\ge\text{ 84} \end{gathered}$

This means Cassie needs to score 84 or more to get a grade of B

In ineq

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1 year ago

Evaluate the expression when a=4 and x=-4. -9a + x

svetlana [45]

Answer:

- 40

Step-by-step explanation:

When a = 4, and x = -4:

Evaluating algebraic expressions simply involve substituting the given values for a and x into the expression, -9a + x.

Hence, -9a + x = -9(4) + (-4) = -36 - 4 = -40

Therefore, the correct answer is -40.

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3 years ago

Is the number 1/9 a irrational number true or false

abruzzese [7]

Answer:true

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers