3 years ago

Is this true or false

Mathematics

1 answer:

Ber [7]3 years ago

5 0

Answer:

False

Step-by-step explanation:

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A teacher administers a standardized math test to his class of 75 students. The mean score (out of 300 possible points) is 235.

frutty [35]

Answer: (228.7, 241.3)

Step-by-step explanation:

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2 years ago

Reggie starts his card collection with 195 trading cards in week 1. Each week after this, he purchases 16 more trading cards. Ho

Arturiano [62]

195 in week 1
each week after, he purchased 16 more each week
how much after week 12

195 + 16(11) = 195 + 176 = 371 <== ur answer is $ 371

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3 years ago

Read 2 more answers

Samantha bought a $65.99 purse. She used a 15%

vfiekz [6]

65.99(0.15)
Now take that number and subtract it from the original cost
65.99-9.9
56.09

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3 years ago

Please help ASAP!!!!!

Sedaia [141]

Answer: OPTION C

Step-by-step explanation:

Complete the square:

Having the equation in the form $ax^2+bx=c$ , you need to add $(\frac{b}{2})^2$ to both sides of the equation:

You can identify that "b" in the equation $x^2+6x=5$ is:

$b=6$

Then:

$(\frac{6}{2})^2=3^2$

Add this to both sides:

$x^2+6x+3^2=5+3^2$

Rewriting, you get:

$(x+3)^2=14$

Solve for "x":

$x+3=\±\sqrt{14}\\\\x+3=\±\sqrt{14}\\\\x=\±\sqrt{14}-3$

Then, the solutions are:

$x=-3+\sqrt{14}\ or\ x=-3-\sqrt{14}$

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3 years ago

If the salesperson sold FOUR TVs at $885 each, how much commission did they

Ann [662]

Answer: 221.25

Step-by-step explanation:

885 divided by 4

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3 years ago