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2 years ago

A doctor compiles a numbered list of all his 350 patients. He selects every 25th patient to receive a survey after

Mathematics

1 answer:

Vinil7 [7]2 years ago

4 0

Answer: This does not represent an SRS because each group of patients chosen does not have an equally likely chance of being chosen.

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I will give brainliest

alex41 [277]

Answer:

x = 1.25

y = 1.75

Step-by-step explanation:

Since, the line that is 8 units long is parallel to the line that is ten units long.

Therefore, both the triangles are similar by AA postulate.

Corresponding sides of of the similar triangles are in proportion.

Therefore,

$\frac{5}{x + 5} = \frac{7}{y + 7} = \frac{8}{10} \\ \\ \implies \frac{5}{x + 5} = \frac{8}{10} \\ \\ 5 \times 10 = 8(x + 5) \\ \\ 50 = 8x + 40 \\ \\ 50 - 40 = 8x \\ \\ 10 = 8x \\ \\ \frac{10}{8} = x \\ \\ x = 1.25 \\ \\ \\ \frac{7}{y + 7} = \frac{8}{10} \\ \\ 7 \times 10 = 8(y + 7) \\ \\ 70 = 8y + 56 \\ \\ 70 - 56 = 8y \\ \\ 14 = 8y \\ \\ \frac{14}{8} = y \\ \\ y = 1.75$

3 0

2 years ago

Need help ASAP please!!!!

kenny6666 [7]

Answer:

72 divided by 8 = t

Step-by-step explanation:

4 0

2 years ago

PLZZZZZZ HEEEEEEEEELLLLLPPPPP<br> (will mark brainliest for correct answers)

alexdok [17]

Answer:

y=4

Step-by-step explanation:

3(9) +4y= 43

27+4y=43

4y=16

y=4

6 0

2 years ago

If 3(r+300)=6, then what would be the value of r+300-2?

saveliy_v [14]

Solve for r in the first equation:

3(r+300) = 6

Use the distributive property:

3r + 900 = 6

Subtract 900 from both sides:

3r = -894

Divide both sides by 3:

r = -894 / 3

r = -298

Now you have r, replace r in the second equation and solve:

r +300 -2 =

-298 + 300 - 2 = 0

The answer is 0.

6 0

3 years ago

Find the missing exponent. Set up an equation and solve. : x^4·x^n = x^5

Assoli18 [71]

$Use\ a^n\cdot a^m=a^{n+m}\\\\x^4\cdot x^n=x^5\\\\x^{4+n}=x^5\iff4+n=5\ \ \ |subtract\ 4\ from\ both\ sides\\\\\boxed{n=1}$

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2 years ago