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Zielflug [23.3K]
2 years ago
14

Determine the measures of angles C and D.​

Mathematics
1 answer:
Morgarella [4.7K]2 years ago
7 0

Answer:

c = 40 and d = 76

Step-by-step explanation:

this is going to take me a long time to explain but here we go

so you need to do 180 - 116 and get 64.

then create a equation that is like this 7y + 6 + 4y + 64 = 180

when you solve it you get y = 10

then plug in 10 in for y in 4y. and you get 40 for c

do the same for d and you will get 76

pls mark me brainleist because i didnt waster your time.

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Help! with explanations if possible
k0ka [10]

Answer:

5

Step-by-step explanation:

1. according to the condition

\frac{price \ radio1}{price \ radio2} =\frac{x}{y}

2. when the both prices are increased the ratio is

\frac{x+20}{y+20}=\frac{5}{2}

3. when the both prices are reduced the ratio is

\frac{x-25}{y-25} =\frac{5}{1}

4. using the equations written in steps 2&3 it is possible to make up the system of the two equations:

\left \{ {{\frac{x+20}{y+20}=\frac{5}{2}  } \atop {\frac{x-25}{y-25}= \frac{5}{1} }} \right.

where x=160; y=52.

5. ration x:y=5.

7 0
3 years ago
The drawing is composed of a rectangle and a semicircle. Find the area of the figure to the nearest unit. Please explain, thank
DanielleElmas [232]
We know that
[area of the figure]=[area of rectangle]+[area of semi circle]

area of rectangle=b*h------> 10*18-----> 180 cm²

area of semicircle=pi*r²/2
diameter=18 cm
radius=18/2----> 9 cm
area of semicircle=pi*9²/2-----> 127.17 cm²

[area of the figure]=[180]+[127.17]------> 307.17 cm²
round <span>to the nearest unit </span>------> 307 cm²

the answer is
the area of the figure is 307 cm²
3 0
3 years ago
-50 POINTS- please help
e-lub [12.9K]

Answer:

-13

-10

Step-by-step explanation:

A x = B

To find X

A ^ -1 A  x = A ^ -1 B

x = A^ -1 B

x = -3/2  -5/2      2

     -1       -2         4

Across times down

-3/2 * 2 + -5/2 *4 = -13

-1 *2 -2 * 4 = -10

The matrix is

-13

-10

7 0
3 years ago
Read 2 more answers
7.13 g =<br>cg what is the answer​
Zina [86]

Answer: 713 cg

Step-by-step explanation:

1 g = 100 cg

----------------------------------------------------------

Given

7.13 g = ? cg

Solve

7.13 × 100 = 713 cg

Hope this helps!! :)

Please let me know if you have any questions

6 0
2 years ago
Help please! :(
Mekhanik [1.2K]

Answer:

5.51 meters

Step-by-step explanation:

3 0
3 years ago
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