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4 years ago

In circle P, which central angle is obtuse? An obtuse angle is greater than 90degree

Mathematics

1 answer:

lapo4ka [179]4 years ago

6 0

Yes acute angles are less then 90 degrees and obtuse are more. Right angles are 90 degrees

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7 students ride the bus to school for every two students who walk if there are a hundred five students who ride the bus how many

Akimi4 [234]

Hope this answer helps you! If it did, please mark it as the brainiest! I would really appreciate it! :)

4 0

3 years ago

What is the answer to -2+(-20)

Nostrana [21]

-2+(-20)
-2 - 20
-22
+-= -

5 0

3 years ago

Please help!!! I will give 20 points to the correct answer !! Thanks so much

anygoal [31]

The values will be 10 and -6

5 0

3 years ago

One sample has Aa Aa One sample has n 10 scores and a variance of s2 20, and a second sample has n 15 scores and a variance of s

siniylev [52]

Answer:

option (a) It will be closer to 30 than to 20

Step-by-step explanation:

Data provided in the question:

For sample 1:

n₁ = 10

variance, s₁² = 20

For sample 2:

n₂ = 15

variance, s₂² = 30

Now,

The pooled variance is calculated using the formula,

$S^{2}_{p} = \frac{(n_{1}-1)\times s^{2}_{1} +(n_{2}-1)\times s^{2}_{2}}{n_{1}+n_{2}-2}$

on substituting the given respective values, we get

$S^{2}_{p} = \frac{(10-1)\times 20 +(15-1)\times 30}{10+15-2}$

$S^{2}_{p}$ = 26.0869

Hence,

the pooled variance will be closer to 30 than to 20

Therefore,

The correct answer is option (a) It will be closer to 30 than to 20

4 0

3 years ago

Mason wrote the numbers 0 through 14 on scraps of paper and placed the scraps in a box. He then randomly chose one of the scraps

lisabon 2012 [21]

There are 0-14 numbers inclusive, so that means there are 15 scraps of paper.

Probability of getting greater than or equal to six (6, 7, 8, 9, 10, 11, 12, 13, 14) is

$\frac{9}{15}$

(as there are 15 scraps)

$\frac{9}{15} = \frac{3}{5}$

so the answer is C.

8 0

3 years ago

Read 2 more answers