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3 years ago

Im in year 6 and I need help with this question

Mathematics

1 answer:

natulia [17]3 years ago

3 0

I have no idea even tho I’m way passed this stuff but honestly if I were you I would maybe put 6??? I think it looks like it’s about half of the other angle

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Determine whether the underlined value is a parameter or a statistic. In a national survey on substance abuse comma Modifying 66

Iteru [2.4K]

Answer:

Parameter

Step-by-step explanation:

Parameter and statistic:

Parameter is a numerical value that describes a population.
A sample is a part of the population and always smaller than the population.
The statistic is a numerical value that describes a sample.

Population of interest:

College students aged 18 to 22

Parameter:

66.4% reported using alcohol within the past month

Thus, the given is a parameter as it describes a population proportion.

4 0

3 years ago

What is the approximate distance between point A (-8, 7) and point B (-2, 3)?

RoseWind [281]

Answer:

7.2units

Step-by-step explanation:

3 0

2 years ago

The ratio of male students to female students in a class is 5:4. If the number of male students in the class is

beks73 [17]

Answer:

The answer is 20

Step-by-step explanation:

In ratio what you do one side you do on the other side 5:4=25:20

5×5=25

4×5=20

6 0

3 years ago

A bag contains 15 coins consisting of quarters and dimes. The total value of the coins is $2.55. Which system of equations can b

denis23 [38]

Answer: d+q= 2.55

or d=15+q

I believe this is how you do it

Step-by-step explanation:

5 0

3 years ago

Please help! Consider the given circle with the shaded sector xy and central angle 225. The circumference is 30 units

OleMash [197]

$\textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=30\pi \end{cases}\implies 30\pi =2\pi r\implies \cfrac{30\pi }{2\pi }=r\implies \boxed{15=r} \\\\[-0.35em] ~\dotfill$

$\textit{arc's length}\\\\ s = \cfrac{\theta \pi r}{180}~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=15\\ \theta =225 \end{cases}\implies \widehat{XY}=\cfrac{(225)\pi (15)}{180}\implies \boxed{\widehat{XY}\approx 58.90} \\\\[-0.35em] ~\dotfill\\\\ \textit{area of a circle}\\\\ A=\pi r^2\qquad \qquad A=\pi (15)^2\implies A=225\pi \implies \boxed{A\approx 706.86}$

6 0

2 years ago