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Softa [21]
3 years ago
8

To determine her heart rate , Miranda divides up her day into three​ parts: morning,​ afternoon, and evening. She then measures

her heart rate at 2 randomly selected times during each part of the day. WHAT TYPE OF SAMPLING​?
Mathematics
2 answers:
vichka [17]3 years ago
7 0
I would go with s<span>tratified sampling.</span>
Papessa [141]3 years ago
4 0

Answer:

The answer is stratified sampling.

Step-by-step explanation:

Miranda divides up her day into three​ parts: morning,​ afternoon, and evening.

She then measures her heart rate at 2 randomly selected times during each part of the day.

This sampling method is Stratified sampling.

This is because Miranda created separate groups and took samples from each group.

Stratified sampling is defined as dividing the population into separate groups or strata and then drawing a sample from each group.

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Identify the slope and y−intercept of the line with the equation 18x − 6y = 12.
DaniilM [7]
And where is the graph? I'll change my answer.
5 0
3 years ago
Pattern x and y are generated using the rules. Pattern x: start with 0 and add 6. Pattern y: start with 1 and multiply 2. Patter
timama [110]

Answer:

Pattern x: 0,6,12,18

Pattern y: 1,2,4,8

Step-by-step explanation:

Given:

Pattern x: start with 0 and add 6.

Pattern y: start with 1 and multiply 2.

To find: patterns x and y

Solution:

Pattern x: 0,0+6,0+6+6,0+6+6+6=0,6,12,18

Pattern y: =1,1(2),1(2)(2),1(2)(2)(2)=1,2,4,8

7 0
3 years ago
-2|x+5| =8<br> can you plz help me!!
Kitty [74]

Answer:

the answer is here

plz mark as brainlist

Step-by-step explanation:

-2x-10=8

-2x=8+10

X= -18/2

hence X= -9

7 0
2 years ago
Read 2 more answers
Who wants to do an algebra 1 assignment for me? I will email you the pdf
andrew11 [14]

Answer:

No

Step-by-step explanation:

People arent on brainly to do others work, they are here to help, NOT DO YOUR WORK

Resepect us more please. We stay on here just to help people. We take time out of our days to help people. So please dont make them do your work. They are here to help not be your personal servant.

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4 0
2 years ago
Read 2 more answers
Please help with this Math Question...
Nataly [62]

Answer: A

<u>Step-by-step explanation:</u>

f(x) = x³ + 4x² + 7x + 6

possible rational roots are ±{1, 2, 3, 6}

Try x = -2

-2 |   1   4   7   6

   <u>|   ↓  -2  -4  -6</u>

       1    2    3   0 ← remainder is 0 so x = -2 is a root  ⇒  (x + 2) = 0

The factored polynomial x² + 2x + 3 = 0 is not factorable so use the quadratic formula to find the roots.

a=1, b=2, c=3

x=\dfrac{-b\pm\sqrt{b^2-4ac} }{2a}

x=\dfrac{-(2)\pm\sqrt{(2)^2-4(1)(3)} }{2(1)}

x=\dfrac{-2\pm\sqrt{4-12} }{2}

x=\dfrac{-2\pm\sqrt{-8} }{2}

x=\dfrac{-2\pm2i\sqrt{2}}{2}

x = -1 \pm i\sqrt{2}

x = -1 + i\sqrt{2}       x = -1 - i\sqrt{2}

x - (-1 + i\sqrt{2})=0       x - (-1 - i\sqrt{2})=0

The factors are:

(x - 2)[x - (-1 + i\sqrt{2})][x - (-1 - i\sqrt{2})]




5 0
3 years ago
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