Mathematics, 13.02.2021 19:10 toot8255

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Answer from: yasdallasj

15) m<a = 21

m<b = 125

m<c = 34

16) m<j = 48

m<k = 57

m<l = 75

*make sure you write the degree signs after the angles!!!*

Step-by-step explanation:

15) m<a = x - 13

m<b = 4x - 11

m<c = x

x - 13 + 4x - 11 + x = 180

2x + 4x -13 - 11 = 180

6x - 24 = 180

+ 24 +24

6x = 204

x = 34

m<a = x - 13

= (34) - 13

= 21

m<b = 4x - 11

= 4(34) - 11

= 136 - 11

= 125

m<c = x

= 34

16) m<j = x

m<k = x + 9

m<l = 2x - 21

x + x + 9 + 2x - 21 = 180

4x - 12 = 180

+12 +12

4x = 192

x = 48

m< j = x

= 48

m<k = x + 9

= (48) + 9

= 57

m<l = 2x - 21

= 2(48) - 21

= 96 - 21

= 75

Answer from: bigchow

I'll do 15 & you try to do 16

15)

A= 21 degrees

B= 125 degrees

C= 34 degrees

Step-by-step explanation:

15)

Knowns:

A=C-13 C=A+13

B=4C-11 C=(B+11)/4

A+B+C=180 degrees (because it's a triangle)

C=C so substitute A+13 & (B+11)/4

A+13=(B+11)/4

reduce for B

4A+52=B+11

B=4A+41

since A+B+C=180 degrees, substitute values for B & C:

A+(4A+41)+(A+13)=180

reduce

6A+54=180

6A=126

A=21 degrees

substitute A to solve B & C

B=4(21)+41=125 degrees

C=(21)+13=34 degrees

Answer from: Quest

we have the parent function given by,

1. the function is translated 5 units to the left.

so, we get, becomes

2. the function is translated 5 units to the right.

so, we get, becomes

3. the function is translated 5 units upwards.

so, we get, becomes

4. the function is translated 5 units downwards.

so, we get, becomes

5. the function is reflected across x-axis.

so, we get, becomes

6. the function is reflected across y-axis.

so, we get, becomes .

step-by-step explanation:

mark brainliest.

Answer from: Quest

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where, $a = \frac{\sum y \sum x^2 - \sum x\sum xy}{n\sum x^2 - (\sum x)^2}$

here given table is,

price ($), x : 18 23 25 29 30 33

pairs sold, y : 16 13 10 8 6 2

so, $\sum x = 158$ , $\sum y = 55$ , $\sum xy = 1315$ ,

$\sum x^2 = 4308$ and $\sum y^2 = 629$ ,

thus, slop of the given line is,

$a = \frac{55\times 4308-158\times 1315}{6\times 4308-(158)^2}$

⇒ $a = \frac{29170}{884}$

⇒ $a =32.9977375566$ ≈ 33

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