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2 years ago

Find the measures of angle x and y in the figure.

Mathematics

2 answers:

Aloiza [94]2 years ago

7 0

5x and 8x and ok that is the answer

avanturin [10]2 years ago

5 0

X and y are both 60 degrees

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From the beginning of the day the temperature rose 15° so that by 4 pm it was 87°. What was the temperature at the start of the

zubka84 [21]

Your answer is A, 72°.

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4 years ago

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"Large Sample Proportion Problem. Surveys were conducted in multiple countries and respondents were asked if they felt political

melomori [17]

Answer: 0.0158

Step-by-step explanation:

Given : The data for the United States is that out of 1,000 sampled, 470 indicated yes, they felt political news was reported fairly.

According to the given information we have,

Sample size : n= 1000

Sample proportion: $\hat{p}=\dfrac{470}{1000}=0.47$

The standard error for proportion is given by :-

$S.E.=\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$S.E.=\sqrt{\dfrac{0.47(1-0.47)}{1000}}$

$S.E.=\sqrt{0.0002491}$

$S.E.=0.0157829021412\approx0.0158$

[Rounded to the nearest four decimal places.]

Hence, the standard error for the confidence interval = 0.0158

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3 years ago

ABDF is a regular hexagon. What is the measure of angle A?

dolphi86 [110]

$720 \div 6 = 120$

4 0

3 years ago

Under the translation T(-5, -2) the point (1, 6) will become (-4, -4).<br><br> True<br><br> False

Butoxors [25]

Step-by-step explanation:

<h3>It's False</h3>

Because (-5+ 1, - 2 + 6) = (- 4, 4) which is not equal to (-4, - 4).

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4 years ago

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Find the co-ordinate of the image of the point A (3, -2) when it is reflected on the line x=0 and then rotated about origin thro

Luba_88 [7]

Answer:

Step-by-step explanation:

Rotations are easy when its multiples of 90 degrees; 90,180,270,360. Treat them like they’re a complex number like [x+yi]*i=[-y,xi] so rotating by 90 degrees and 180 is i squared [-1]! So [-3,2] rot90 is [-2,-3].

Reflection about the y=x line is change places. [x.y]=[y,x].

So [-2.-3] reflected about the y=x line is [-2.-3]=[-3.-2],

Compile a list of these transform is best practice technique in this area.

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3 years ago