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3 years ago

I need he,p i have to finish this by 12:30!!

Mathematics

2 answers:

nirvana33 [79]3 years ago

5 0

Answer:

a and c

Step-by-step explanation:

Mashutka [201]3 years ago

5 0

Answers:

A and C.

Step-by-step explanations:

A.) When looking at value, negative numbers are always less than positive numbers. Because negative numbers are behind zero on the number line (to the left) , they are automatically less than a positive number, which is ahead of zero on the number line (to the right).

C.) When it comes to negative numbers, the closer the number is to zero on a number line, the greater its value. Think of it like this: the closer it is to the positive side of the number line (which is the right), the greater the negative number's value.

That is why B is incorrect. Even though normally 3 is a bigger number than 2, that rule does not apply with negative numbers, as I mentioned above. Letters D and E are wrong because the numbers that were listed in both of those do not apply to their actual locations on a number line.

I hope that this helps.

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<img src="https://tex.z-dn.net/?f=%5Cfrac%7B2%2Bh%7D%7B9%7D%2B%5Cfrac%7Bh-1%7D%7B3%7D%3D%5Cfrac%7B1%7D%7B3%7D" id="TexFormula1"

yKpoI14uk [10]

Step-by-step explanation:

Multiply both sides by 9 and you will get

$2 + h + 3(h - 1) = 3$

$2 + h + 3h - 3 = 3$

Solving for h, we get

$4h = 4 \Rightarrow h = 1$

6 0

2 years ago

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Studentka2010 [4]

Answer: no cheating on the state test

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Every day, two student council members are randomly chosen to read the morning announcements. Students cannot be chosen more tha

Nesterboy [21]

<u>Complete Question</u>

The table shows the number of grade 7 and grade 8 students on the student council at Jeremy’s school.

Number of Students

Grade 7 - 17
Grade 8 - 34

Answer:

C- The number of outcomes representing each grade level does not change after the first student is chosen.

Step-by-step explanation:

The ratio of Grade 7 students to Grade 8 students is:

17:34

This written in reduced form is 1:2

Therefore, initially, the six parts of the cube can be divided into the ratio 2:4 which Jeremy did.

However, after the first selection of a student, the ratio of Grade 7:Grade 8 student changes since the same student cannot be chosen more than once.

Therefore the cube rolls represent only the first student choice and may not be accurate for subsequent rolls.

The correct option is C.

3 0

3 years ago

A right triangle is given with a missing value of t. It is stated that the triangle is an acute right triangle with angles 50∘ a

sergiy2304 [10]

Answer: t=20°

Step-by-step explanation:

1. By definition, the sum of the interior angles is 180 degrees.

2. Keeping the information above on mind, you can write the following expression:

$90+50+2t=180$

3. Now, you must solve for $t$ as following:

$140+2t=180\\2t=180-140\\2t=40\\t=\frac{40}{2}\\t=20$

4. Therefore, the value of $t$ is 20°

6 0

3 years ago

Suppose N has a geometric distribution with parameter p. Derive a closed-form expression for E(N | N <= k), k = 1,2,... Check

vfiekz [6]

Answer:

P(X= k) = (1-p)^k-1.p

Step-by-step explanation:

Given that the number of trials is

N < = k, the geometric distribution gives the probability that there are k-1 trials that result in failure(F) before the success(S) at the kth trials.

Given p = success,

1 - p = failure

Hence the distribution is described as: Pr ( FFFF.....FS)

Pr(X= k) = (1-p)(1-p)(1-p)....(1-p)p

Pr((X=k) = (1 - p)^ (k-1) .p

Since N<=k

Pr (X =k) = p(1-p)^k-1, k= 1,2,...k

0, elsewhere

If the probability is defined for Y, the number of failure before a success

Pr (Y= k) = p(1-p)^y......k= 0,1,2,3

0, elsewhere.

Given p= 0.2, k= 3,

P(X= 3) =( 0.2) × (1 - 0.2)²

P(X=3) = 0.128

3 0

3 years ago