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3 years ago

X is a real number greater than or equal to 5.5. What are the possible numbers for X?

1 answer:

7 0

X ≥ 5.5.

So it can be anywhere from 5.5 to ∞ (infinity)

P.S this symbol ∞ is sometimes called a lemniscate

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Which graph represents a function?

Temka [501]

Answer:

The last one

Step-by-step explanation:

x can only have one value whereas y can be constants like in last graph

6 0

3 years ago

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Mr. Dean had 4/5 he wanted to give his student 1/6 how many does he give them

Sunny_sXe [5.5K]

Answer:

$\frac{2}{15}$

Step-by-step explanation:

$\frac{4}{5}$ ÷ 6 × 1 = $\frac{2}{15}$

=> He gave them $\frac{2}{15}$

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3 years ago

stat: sample of 780 adults in the U.S.A., it was found that 80 of those had a pinworm infestation. You want to find the 99% conf

Anettt [7]

Answer: 554

Step-by-step explanation:

If prior population proportion is known, then the formula to find the sample size is given by :-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$

As per given description, we have

p= 0.1

E=0.025

Critical z-value for 95% confidence : $z_{\alpha/2}=1.96$

Then,

$n=0.1(1-0.1)(\dfrac{1.96}{0.025})^2=553.1904\approx554$

Hence, the minimum sample size required = 554.

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3 years ago

Which expressions represent rational numbers? Select all the apply.

RUDIKE [14]

Answer:

the answers are A, B, C, and F

Step-by-step explanation:

just took the quiz

8 0

3 years ago

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Will give brainliest if answer correct// if p(x)= 3x^6 - 5x^5 - x + 7 , then p(2) equals: ??

djverab [1.8K]

$\\ \tt\hookrightarrow p(2)=3(2)^6-5(2)^5-2+7$

$\\ \tt\hookrightarrow p(2)=3(64)-5(32)+5$

$\\ \tt\hookrightarrow p(2)=192-160+5$

$\\ \tt\hookrightarrow p(2)=32+5$

$\\ \tt\hookrightarrow p(2)=37$

Option B is correct

4 0

2 years ago

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