Classify the expression: -2x^2 + 11 A) quadratic expression B) linear expression C) cubic expression D) exponential expression

Mathematics

2 answers:

Vanyuwa [196]3 years ago

5 0

Answer:

Below

Step-by-step explanation:

-2x^2 + 11 is a quadratic equation since the degree is 2.

It's not a linear one since it does not give a straight line after graphing it

marusya05 [52]3 years ago

3 0

Answer: A

Step-by-step explanation:

For this problem, let's think about the properties of the listed expressions.

We can eliminate B. We know that a linear line is a straight line. It doesn't curve at all. A linear line should not have a power such as the one in the problem. The only power it should have is to the power of 1. Therefore, we can eliminate B.

We can eliminate C. A cubic expression has a cubed in it, meaning it is to the power of 3. The given problem is in power 2. Therefore, we can eliminate C.

We can eliminate D. Though you may think this is an exponential expression because the given expression has an exponent, this is not the case. An expoenetial function actually has x as the exponent, not a number. Therefore, we can eliminate D.

Since we have eliminated D, A is the correct answer.

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M&M plain candies come in various colors. According to the M&M/Mars Department of Consumer Affairs, the distribution of

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Answer:

A) 0.12. Yes. Choosing a green and blue M&M is possible

B) 0.43. Yes. Choosing a yellow and red M&M is possible

C) 0.78

Step-by-step explanation:

First of all, the summation of the distribution of all colours is;

Σ(all colors ) = 22% + 20% + 23% + 10% + 6% + 6% + 13% = 100%, or 1.

Thus;

a) P(green candy or blue candy) is;

P(GREEN ∪ BLUE) = P(G) + P(BL)

P(GREEN ∪ BLUE) = 6%+6%

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b)P(yellow candy or red candy is;

P(YELLOW ∪ RED) = P(Y) + P(R)

P(YELLOW ∪ RED) = 20% + 23% = 43% or 0.43

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c) P(NOT PURPLE)

the probability of having a purple is;

P(PURPLE) = 22% or 0.22

So, the Probability of NOT having a PURPLE is 1 - 0.22 = 0.78

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3 years ago

In a right angled triangle where angle A= 90° and AB=AC. What are the values of angle B.

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