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Jlenok [28]
3 years ago
12

Find the unknown angle measure by solving for the given variable

Mathematics
1 answer:
tiny-mole [99]3 years ago
3 0

A straight line is 180°. So you can do:

(15x - 4) + (5x - 8) = 180  Simplify

20x - 12 = 180

20x = 192    Find the value of x

x = 9.6

m∠ABD = 15x - 4      Plug in x = 9.6

m∠ABD = 15(9.6) - 4 = 144 - 4 = 140°

m∠DBC = 5x - 8   Plug in 9.6

m∠DBC = 5(9.6) - 8 = 48 - 8 = 40°

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Graph the line y = -5/4x-3
kogti [31]

Answer:

Well I can't exactly graph for you but I will tell you the y intercept is at (0,-3) and the slope is -5/4

Step-by-step explanation:

Make a graph and plot a point on (0,-3)

Then go down 5 and go right 4 to represent the slope of -5/4

Hope this helps!

7 0
3 years ago
Someone please help ASAP will give brainliest
ivann1987 [24]

Answer:

Slope:  3 /4

Y-Intercept:  3

Graph a dashed line, then shade the area above the boundary line since  y  is greater than  3 x /4 + 3

y  >  3 x /4  +  3



4 0
3 years ago
SOLVE FOR L:. ( -7.4 ) + L = 9.11
kaheart [24]

(-7.4) + L = 9.11

Add 7.4 to both sides.

L = 16.51

4 0
3 years ago
Read 2 more answers
What is the volume of the box if it is scaled down by a factor of 1/10?
Natalka [10]

Answer:

8.4in²

Step-by-step explanation:

We are given the dimensions of a box as :

7in = Height

6in = Length

2in = Width

The volume of a box = Length × Width × Height

Volume of a box = 7in × 6in × 2in

= 84in²

We are also told in the question to find the volume of the box if it is scaled down by a factor of 1/10

Hence,the new volume = 84in² × 1/10

= 8.4in²

Therefore, the volume of the box if it is scaled down by a factor of 1/10 is 8.4in²

8 0
3 years ago
GUYS PLEASE HELP ME
soldi70 [24.7K]

Answer:

x = 54°       y = 126°

Step-by-step explanation:

Interior angles of a triangle = 180°

Therefore x = 180 - 80 - 46 = 54°

y = 180 - x = 180 - 54 = 126°

6 0
2 years ago
Read 2 more answers
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