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Sholpan [36]
2 years ago
5

A math teacher wants to find out the average number of hours his students spend working on their math homework for his class eac

h week. Which group best represents a sample of the population?
Mathematics
2 answers:
HACTEHA [7]2 years ago
5 0

Answer:

the answer is C. 30 students selected from his class roster.

Step-by-step explanation:

Nataly [62]2 years ago
4 0
What are the options...
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Find the area of a circle
DiKsa [7]

Answer:

78.5cm^2

Step-by-step explanation:

Half your diameter to get a radius.

D = 10cm

10 divided by 2 = 5

Pi (3.14)

3.14 x 5^2

3.14 x 25 = 78.5cm^2

7 0
3 years ago
Read 2 more answers
Direction if parabola. x2?6x+8=yx2-6x+8=y
STatiana [176]

{\text{Direction of parabola depends on the sign of quadratic coefficient of a }} \hfill \\

{\text{quadratic equation}}. \hfill \\

{\text{For given quadratic equation}}. \hfill \\

a{x^2} + bx + c = 0 \hfill \\

{\text{The parabola is in the upward direction if }}a{\text{ }} > {\text{ }}0{\text{ and in downward direction if }}a < 0 \hfill \\

{\text{Here, the equation of given parabola is }} \hfill \\

{x^2} - 6x + 8 = y \hfill \\

\Rightarrow y = \left( {{x^2} - 6x + 9} \right) - 9 + 8 \hfill \\

\Rightarrow y = {\left( {x - 3} \right)^2} - 1. \hfill \\

{\text{Thus, the parabola is in the upward direction}} \hfill \\

8 0
3 years ago
Brainlyest fast please
puteri [66]

Answer:

Pleaseee post the question clearly

5 0
2 years ago
Please help. Which is the largest?
sergey [27]

Answer:

the first one

Step-by-step explanation:

5 0
2 years ago
In ΔKLM, k = 700 cm, l = 460 cm and ∠M=78°. Find the length of m, to the nearest centimeter.
pashok25 [27]

Answer:

753

Step-by-step explanation:

m^2 =700^2 +460^-2 −2(700)(460)cos78

m^2 = 490000+211600-2(700)(460)(0.207912)

m^2 = 490000+211600-133895.12889

m^2 = 567704.87111

m=753.462=753

6 0
3 years ago
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