MATHEMATICS COLLEGE

What number Could be added in the expression -4 -9 that the value of the expression is 0

Answers

Answer 1

Answer:

Answer:

+13

Step-by-step explanation:

-4-9 gives -13

when +13 is added to -13 , the expression becomes +13+(-13) =13-13=0

Answer 2

Answer: if i’m understanding this correctly -9 + -4 is equal to -13 so wouldn’t you just add 13 to make it 0?

sorry if this is confusing

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The sum of three consecutive multiples of 4 is 444. Find these multiples.

Answers

Step-by-step explanation:

Let the first multiple of 4 be x and second multiple be (x + 4) and third multiple be (x + 8) ...[Since, the number are consecutive multiple of 4]

☯ $\underline{\boldsymbol{According\: to \:the\: Question\:now :}}\n$

$:\implies \sf x \: + \: x \: + \: 4 \: + \: x \: + \: 8 \: = \: 444 \n \n \n$

$:\implies \sf 3x \: + \: 12 \: = \: 444 \n \n \n$

$:\implies \sf 3x \: = \: 444 \: - \: 12 \n \n \n$

$:\implies \sf 3x \: = \: 432 \n \n \n$

$:\implies \sf x \: = \: (432)/(3) \n \n \n$

$:\implies\underline{ \boxed{\sf x \: = \: 144}} \n$

_________________

Therefore,

$\bullet\:\:\textsf{First multiple of 4 = x = \textbf{144}} \n$

$\bullet\:\:\textsf{Second multiple of 4 = x + 4 = 144 + 4 = \textbf{148}} \n$

$\bullet\:\:\textsf{Third multiple of 4 = x + 8 = 144 + 8 = \textbf{152}}$

First multiple of 4 is x = 144

Second multiple of 4 is x + 4 = 144 + 4 = 148

Third multiple of 4 is x + 8 = 144 + 8 = 152

What’s the volume of the pic

Answers

Answer:

100 $\pi$ cubic cm

Step-by-step explanation:

The volume of a cone can be represented by the formula $(1)/(3) \pi r^(2) h$ . Since we know the radius is 5, all we need to find id the height. To do that, we can use the Pythagorean theorem, and see that the height is equal to 12. Plugging the numbers into the formula gives us:

$V =(1)/(3) \pi (5^(2)) (12)$

$V = 100\pi$

HOPE THIS HELPED! :)

A college professor states that this year's entering students appear to be smarter than entering students from previous years. The college's records indicate that the mean IQ for entering students from earlier years. is 110.3. Suppose we want to sample a smaller number of this year's entering students and carry out a hypothesis test to see if the professor statement can be supported. State the null and alternative hypothesis.

Answers

Answer:

$H_(0)$ : μ = 110.3

$H_(a)$ : μ > 110.3

Step-by-step explanation:

Let μ be the mean IQ of this year's entering students.

Then null and alternative hypotheses are:

$H_(0)$ : μ = 110.3 (this year's students mean IQ is at most the mean IQ of the entering students from previous years)

$H_(a)$ : μ > 110.3 (this year's students mean IQ is higher than the mean IQ of the entering students from previous years)

What is a description of an undefined term?

Answers

Answer:

In Geometry, we have several undefined terms: point, line and plane. From these three undefined terms, all other terms in Geometry can be defined. In Geometry, we define a point as a location and no size. ... And the third undefined term is the line.

Step-by-step explanation:

A report describes the results of a large survey involving approximately 3500 people that was conducted for the Center for Disease Control. The sample was selected in a way that the Center for Disease Control believed would result in a sample that was representative of adult Americans. One question on the survey asked respondents if they had learned something new about a health issue or disease from a TV show in the previous 6 months. Data from the survey was used to estimate the following probabilities, where L-event that a randomly selected adult American reports learning somethlng new about a health Issue or disease from a TV show in the previous 6 months and F-event that a randomly selected adult American is female Assume that P(F) 0.5. Are the events L and F independent events? Use probabilities to justify your answer. Land Flare notindependent events, because P(L) P(F)- 0.3 , which is not equal to P(L n F)