1/8 + 1/10 + 1/12 + 1/4

Answers

Answer 1

Answer: The answer that I got was 67/120

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What is the solution to 3/4 a>-16?O a>-21/3
O a<-21
O a> 21-1/
O a <21/13

Answers

$\huge\text{Hey there!}$

$\huge\textbf{Equation:}$

$\mathsf{(3)/(4)a > -16}$

$\huge\textbf{Simplifying it:}$

$\mathsf{(3)/(4)a > -16}$

$\mathsf{(3)/(4)a > - (16)/(1)}$

$\huge\textbf{Divide \boxed{(4)/(3)} to both sides:}$

$\mathsf{(4)/(3)*(3)/(4)a > -16*(4)/(3)}$

$\huge\textbf{Simplify it:}$

$\mathsf{a > (4)/(3)* -16}$

$\mathsf{a > - (16)/(1) *(4)/(3)}$

$\mathsf{a > (-16*4)/(1*3)}$

$\mathsf{a > (-64)/(3)}$

$\mathsf{a > -(64)/(3)}$

$\mathsf{a > -21 (1)/(3)}$

$\huge\textbf{Therefore, your answer should be:}$

$\huge\boxed{- \frak{21(1)/(3)}}\huge\checkmark$

$\huge\text{Good luck on your assignment \& enjoy your day!}$

~ $\frak{Amphitrite1040:)}$

$(3a)/(4) > - 16 \n 3a > - 64 \n a > ( - 64)/(3) \n a > 21 (1)/(3)$

Write 0.666 as a fraction

Answers

Answer:

1/3

Step-by-step explanation:

A circle has a center (2, 4). prove that if the radius of the circle is less than 5, then the circle does not intersect the line y=x-6.

Answers

Draw a coordinate system, Draw a circle with radius 5 with center part (2,4). Now draw a line of y=x-6 with -6 being the y intercept and see what you get

Can someone help me and can y’all show me how you got the answer

Answers

Answer:

x = -8

Step-by-step explanation:

Step 1: Write equation

1/2x + 13 = 9

Step 2: Solve for x

Subtract 13 on both sides: 1/2x = -4
Multiply both sides by 2: x = -8

Step 3: Check

Plug in x to verify it's a solution.

1/2(-8) + 13 = 9

-4 + 13 = 9

9 = 9

Answer:

-8

Step-by-step explanation:

you use inverse operation

meaning opposite signs

subtract -13 from 13 cross it out

subtract 13 from 9

you get 1/2x=-4

divide 1/2 on both sides

-4 divided by 1/2 =-8

Complete the table. Adults Children
8 1
16 2
24 A
B 4

Answers

the answer is A = 3 and B = 32

Right or leftMost people are right-handed, and even the right eye is dominant for most people. Molecular biologists have suggested that late-stage human embryos tend to turn their heads to the right. In a study reported in Nature (2003), German bio-psychologist OnurGüntürkün conjectured that this tendency to turn to the right manifests itself in other ways as well, so he studied kissing couples to see which side they tended to lean their heads while kissing. He and his researchers observed kissing couples in public places such as airports, train stations, beaches, and parks. They were careful not to include couples who were holding objects such as luggage that might have affected which direction they turned. For each kissing couple observed, the researchers noted whether the couple leaned their heads to the right or to the left. They observed 124 couples, ages 13–70 years. Suppose that we want to use the data from this study to investigate whether kissing couples tend to lean their heads right more often than would happen by random chance.

The symbol π represents the long-run proportion of all the couples that lean their heads
leftright

while kissing.

Which of the following best describes the null hypothesis and the alternative hypothesis using π?

null: π ≠ 0.5, alternative: π > 0.5
null: π = 0.5, alternative: π < 0.5
null: π = 0.5, alternative: π > 0.5
null: π ≠ 0.5, alternative: π < 0.5

Of the 124 kissing couples, 80 were observed to lean their heads right. What is the observed proportion of kissing couples who leaned their heads to the right? What symbol should you use to represent this value? (Round answer to 3 decimal places, e.g. 5.275)
p^=

the absolute tolerance is +/-0.001

Determine the standardized statistic from the data. (Hint: You will need to get the standard deviation of the simulated statistics from the null distribution.) (Round answer to 2 decimal places, e.g. 52.75)
z =

the absolute tolerance is +/-0.02

Interpret the meaning of the standardized statistic.

The observed proportion of couples who leaned to the right when kissing is 3.22 standard deviations above the null hypothesized value of 0.50.
The observed proportion of couples who leaned to the right when kissing is 3.22 standard deviations away from the null hypothesized value of 0.50.
The observed proportion of couples who leaned to the right when kissing is 3.22 standard deviations below the null hypothesized value of 0.50.

Select the best conclusion that you would draw about the null and alternate hypotheses.

We have strong evidence that the proportion of couples that lean their heads to the right while kissing is more than 50%.
We have strong evidence that the proportion of couples that lean their heads to the right while kissing is less than 50%.
We have strong evidence that the proportion of couples that lean their heads to the right while kissing is 50%.
We have strong evidence that the proportion of couples that lean their heads to the right while kissing is near to 50%.

Answers

Answer:

1) null: π = 0.5, alternative: π > 0.5

2)p^= 80/124 =0.645

std error =(phat(1-phat)/n)1/2 =0.0430

3)z = (phat-p)/std erro =(0.645-0.5)/0.0430 =3.22

4)The observed proportion of couples who leaned to the right when kissing is 3.22 standard deviations above the null hypothesized value of 0.50

5)We have strong evidence that the proportion of couples that lean their heads to the right while kissing is more than 50%

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