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Vsevolod [243]
3 years ago
12

Ms. Parker determined that the mean test score in her first-period class

Mathematics
1 answer:
cluponka [151]3 years ago
6 0

Answer:

B. Period 1 had scores that were less spread out around the mean than

Period 2

Step-by-step explanation:

Because the standard deviation of Period 2's scores is greater than that of Period 1's, the test scores for Period 2 are going to be more spread out than Period 1's test scores. B is the most logical choice in this case.

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Mama L [17]

Answer:

0.5

Step-by-step explanation:

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Help imma fail school
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Answer: A -11

Step-by-step explanation:

its quite simple

subract 9(-) from negative 2

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What’s the answer to this question if your right I’ll keep giving you points
andreyandreev [35.5K]

\huge\text{$m\angle O=\boxed{11^{\circ}}$}

Since we know that all angles in a triangle add up to 180^{\circ}, we can solve for x and substitute it back into (x-5)^{\circ} to find m\angle O.

\begin{aligned}m\angle N+m\angle O+m\angle P&=180\\(5x-8)+(x-5)+(6x+1)&=180\end{aligned}

Remove the parentheses and combine like terms.

\begin{aligned}5x-8+x-5+6x+1&=180\\(5x+x+6x)+(-8-5+1)&=180\\12x-12&=180\end{aligned}

Add 12 to both sides of the equation.

\begin{aligned}12x-12&=180\\12x&=192\end{aligned}

Divide both sides of the equation by 12.

\begin{aligned}x=16\end{aligned}

Now that we have the value of x, we can substitute it back into (x-5)^{\circ} to find m\angle O.

\begin{aligned}m\angle O&=(x-5)\\&=16-5\\&=\boxed{11}\end{aligned}

7 0
3 years ago
Can you help? i’ll give brainliest
m_a_m_a [10]

Answer: the value of k is 3

Step-by-step explanation:

You have to find out what times 14 equals 42.

You divide 42 by 14 and then you get 3.

Hope this helps :)

3 0
3 years ago
Help Please !!!! Very Confused, do not understand how to complete these 2 questions properly.
Varvara68 [4.7K]

Answer:

11) tan(7x+3) = OE/OJ

7x+3=arctan(OE/OJ)=45

x=6


12) a) x = 40

<ajq = <acq (base angles of isosceles triangle)

50+x+90=180

x=40


b) they are congruent triangle, reason HL   (hypotenuse, leg)

aj=ac

aq=qa

right angle equal

8 0
4 years ago
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