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3 years ago

In what periods are the lanthanides and actinides? Where are they

1 answer:

6 0

Lanthanides are in period 6 and actinides are in period 7. They are at the down part of the page so that the periodic table can fit on the page.

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How is the graph of y=(x-1)2-3 transformed to produce the graph of Y = 3(x+4)?,

liubo4ka [24]

Answer

3412

Step-by-step explanation:

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2 years ago

What is true about the interior and exterior angle measures of any triangle

elena-s [515]

Interior angles of a triangle=180
Exterior angles = 360

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3 years ago

During a fundraiser, Ms. Dawson’s class raised $560, which is 25% more than Mr. Casey’s class raised.

e-lub [12.9K]

Answer:

The answer is $420 dollars

Step-by-step explanation:

you times 560 by 25%

that comes to a total of 140/

Ms. Dawson's class raised 25 percent more so you would have to subtract 140 from 560

560-140=420

420 is how much Mr. Casey's class raised

7 0

3 years ago

Read 2 more answers

A survey showed that 77% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 22 adults are

Sveta_85 [38]

Answer:

The probability that no more than more than 11 of them need correction for their eyesight is 0.00512

No, 11 is not a significantly low low number of adults requiring eyesight correction .

Step-by-step explanation:

A survey showed that 77% of adults need correction for their eyesight.

If 22 adults are randomly selected, find the probability that no more than more than 11 of them need correction for their eyesight.

n =22

p = 0.77

q = 1-p = 1- 0.77=0.23

We are supposed to find $P(x\leq 11)$

$P(x\leq 11)=P(x=1)+P(x=2)+P(x=3)+.....+P(x=11)$

Formula : $P(x=r)=^nC_r p^r q^{n-r}$

$P(x\leq 11)=^{22}C_1 (0.77)^1 (0.23)^{22-1}+^{22}C_2 (0.77)^2 (0.23)^{22-2}+^{22}C_3 (0.77)^1 (0.23)^{22-3}+.....+^{22}C_{11} (0.77)^1 (0.23)^{22-11}$

Using calculator

$P(x\leq 11)=0.00512$

So, The probability that no more than more than 11 of them need correction for their eyesight is 0.00512

No, 11 is not a significantly low low number of adults requiring eyesight correction .

3 0

3 years ago

Can Anyone help me with this assignment please

kodGreya [7K]

Answer: Answers are in step by step. please like and give a review.

Step-by-step explanation:

1. An obtuse angle is an angle that is greater than 90 degrees but less than 180 degrees.

2. 5x - 8 = 37 if and only if x = 9.

3. If two angles have the same measure, then they are congruent. If two angles are not congruent, then they do not have the same measure. If two angles do not have the same measure, then they are not congruent.

4. 2x + 5 = 3 , then x = 3

5. With 3 equal sides is a equilateral triangle

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3 years ago