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AysviL [449]
3 years ago
11

Can someone help me plz

Mathematics
2 answers:
Anarel [89]3 years ago
6 0

Answer:

21/2 = 10.5

y = 10.5*hours

LuckyWell [14K]3 years ago
3 0
The answer to this question is Y =10.5
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A circle is centered at the point (-3,2) and passes through the point (1,5). What is the radius of the circle?
Akimi4 [234]

Answer:

5

Step-by-step explanation:

The radius is a distance on a circle from the center to a point on the circle.

We have both of these points describe here in this definition.  Using the distance formula will give us the radius.

\sqrt{(x \text{ difference })^2+(y \text{ difference})^2

The difference between 1 and -3 is 1-(-3)=4.

The difference between 5 and 2 is 5-2=3.

\sqrt{4^2+3^2}

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8 0
3 years ago
there are 350 boys and 450 girls in the sixth to eighth grade In East Side Elementary School. what is the ratio of the numbers o
MatroZZZ [7]
Boys to girls=350:450=7:9
5 0
4 years ago
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Hello Brainly Teacher Brainly Moderators and trusted helpers!​
tatyana61 [14]

Answer:

  • P(x < 84) = 0.3085 or approximately 31%

============

<em>Hello to you from Brainly team!</em>

<h3>Given</h3>

  • Mean grade μ = 86,
  • Standard deviation σ = 4,
  • Grade limit x = 84.

<h3>To find </h3>

  • Probability of that a randomly selected grade is less than 84 or P(x < 84).

<h3>Solution</h3>

Find z-score using relevant equation:

  • z = (x - μ)/σ

Substitute values and calculate:

  • z = (84 - 86)/4 = - 0.5

Using the z-score table find the corresponding P- value.

  • P(x < 84) = 0.30854 or approximately 31%
4 0
2 years ago
6.75 + StartFraction 3 Over 8 EndFraction x = 13 and one-fourth
amid [387]
Easy the answer is B: 17 and one-third
3 0
3 years ago
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HELP MEEEEEEEEEEEE please​
Galina-37 [17]

Answer:

X = 5

Step-by-step explanation:

Hope it's help you !!!!!!!!!

5 0
3 years ago
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