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3 years ago

4.7+x=3.1 Solve for x . x=

2 answers:

7 0

X= -1.5

4.7 + X = 3.1
move the x and it becomes
4.7 = 3.1- X
then divide 4.7 by 3.1. then you get 1.5 but you cannot have a negative variable so you make the 1.5 negative !

Harman [31]3 years ago

5 0

4.7 + x = 3.1

Subtract 4.7 from both sides to isolate x

x = 3.1 - 4.7 = -1.6

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A group conducted a poll of 2025 likely voters just prior to an election. The results of the survey indicated that candidate A w

FrozenT [24]

Answer:

Check Explanation

Step-by-step explanation:

Confidence Interval for the population proportion is basically an interval of range of values where the true population proportion can be found with a certain level of confidence.

Mathematically,

Confidence Interval = (Sample proportion) ± (Margin of error)

The population proportion can take on any value within the confidence interval obtained.

So, for each candidate, we can calculate the confidence interval for the population proportion of popular votes they would each receive.

For candidate A,

Sample Proportion = 47%

Margin of Error = 2%

Confidence Interval = (47%) ± (2%)

Confidence interval = (45%, 49%)

For candidate B,

Sample Proportion = 46%

Margin of Error = 2%

Confidence Interval = (46%) ± (2%)

Confidence interval = (44%, 48%)

The true proportion of popular votes for the two candidates will lie between

Confidence Interval for candidate A

(45%, 49%)

Confidence Interval for candidate B

(44%, 48%)

So, the true proportion of popular votes for candidate A can take on any value from 45% to 49%, and that for candidate B can take on values from 44% to 48%.

Because, A could have 45% and B have 48% or A could have 47% and B too have 47%.

The clear winner cannot be determined from this confidence interval obtained from the survey, it really is too close to call!

Hope this Helps!!!

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2 years ago

A straight line has gradient -2 and passes through the point (-3 , 10).

Aleksandr-060686 [28]

Answer:

y = 4 - 2x

Step-by-step explanation:

That is the formula, in y = a + mx but it you want it in y = mx+c, it is y = -2x + 4

8 0

1 year ago

How do I do this? 50 points plus brainliest.

Reil [10]

Answer:

you just gotta look at the angles, the middle letter is usually what's being focused on

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18. angle QMR and angle TMS are supplementary angles

19. angle QMR and angle MTS are vertical angles

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Step-by-step explanation:

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2 years ago

Partial product of 8.6x9.2

Kisachek [45]

8.6*9.2=79.12

Hope this helps!

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3 years ago

Wilbur spends 2/3 of his income, share 1/12, and saves the rest. What part of his income does he save? Give the answer in simple

scoundrel [369]

Answer:

1/4 of his income.

Step-by-step explanation:

If Wilbur spends 2/3 of his income, 1/3 or 4/12 of it is left for other purposes (It is easier if everything has a common denominator of 12). And if he shares 1/12 of that remaining amount, there is 3/12 left. And when we simplify 3/12, we get 1/4.

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7 0

3 years ago