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3 years ago

⚠️Help ya boi with this question⚠️

Mathematics

1 answer:

jonny [76]3 years ago

4 0

Answer:

ITS 21

Step-by-step explanation:

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Can someone solve this question?

Rom4ik [11]

The triangles are isosceles. The following notation are for the angles. For example ABD is refer to the angle located in the B vertex, formed by the segments AB and BD.

$ABD = ADB\\40 + 2ADB = 180\\ADB = 70 = ABD\\$

$70 + DBC + 30 = 180\\DBC = 180 - 100 = 80$

Then

$BCD = BCD\\2BCD + 80 = 180\\BCD = 50$

3 0

3 years ago

The distance between points

nasty-shy [4]

Answer: B. False
Distance between points is square root of (x1 - x2) + (y1 - y2).

Hope it helped!

8 0

4 years ago

From 1975 to 1986, the General Social Survey asked its participants if they favored or opposed capital punishment. A least squar

defon

Answer:

The y-intercept for this equation makes no sense for this model.

Step-by-step explanation:

In this case, the explanatory variable x is the year when the observations were taken. So, the values are the integer numbers between (and including) 1975 and 1986.

The<em> y-intercept for the equation of the linear regression makes no sense for this prediction</em>, for it would correspond to the value x=0 (the year 0) is not consider in the range of the explanatory data.

7 0

3 years ago

Read 2 more answers

Find the value of x that makes lines u and v parallel. 11x-2 is the "larger" looking angle on the left.

max2010maxim [7]

Answer: 12

11x - 2 = 130

11x = 130 + 2

11x = 132

x = 132/11

x = 12

Now with value x the angle will be 130 and using converse of corresponding angles theorem line v and u will be parallel

Answered by Gauthmath must click thanks and mark brainliest

6 0

3 years ago

The probability distribution of the number of loaves of bread sold in a bakery in a week based on past data is given below. Iden

Tpy6a [65]

Answer:

$E(X) = 100*0.25+ 148*0.36 + 135*0.21 + 200*0.18 = 142.63$

And for this case the expected value for this random variable is given by 142.63 and rounded to the nearest integer we got 143. And that represent the number of loaves of bread sold for one week

Step-by-step explanation:

For this case we have the following distirbution given:

X: 100 148 135 200

P(X): 0.25 0.36 0.21 0.18

The expected value is given by:

$E(X) = \sum_{i=1}^n X_i P(X_i)$

And replacing we got:

$E(X) = 100*0.25+ 148*0.36 + 135*0.21 + 200*0.18 = 142.63$

And for this case the expected value for this random variable is given by 142.63 and rounded to the nearest integer we got 143. And that represent the number of loaves of bread sold for one week

4 0

3 years ago