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77julia77 [94]
2 years ago
15

Please help me with this look at the image

Mathematics
2 answers:
Afina-wow [57]2 years ago
8 0

Answer:

2) 50, 100, 30

Step-by-step explanation:

all angles of the triangle = 180

1. 40 + 90 = 130 + 60 = 190

2. 50 + 100 = 150 + 30 = 180

3. 120 + 30 = 150 + 20 = 170

4. 70 + 70 = 140 + 60 = 200

Sliva [168]2 years ago
4 0

Answer: A

Step-by-step explanation:

#GameOn

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The sum of two numbers is 24. The difference is 15. What are the two numbers?
tatiyna
The numbers are "x" and "y",
we suggest this system of equations.
x+y=24
x-y=15
solve by reduction method.
x+y=24
x-y=15
-----------------
2x=39      ⇒x=39/2=19.5

  x+y=24
-(x-y=15)
-------------------
   2y=9    ⇒y=9/2=4.5

The numbers are 19.5 and 4.5

To check
19.5+4.5=24
19.5-4.5=15
3 0
3 years ago
if j is 21 inches, k is 12 inches, and angle M measures 62 degrees, then find m using the Law is Cosines. round your answer to t
AURORKA [14]

Answer:

18.7

Step-by-step explanation:

The Law of Cosines is c^2=a^2+b^2-2ab cos(C), where c is the unknown side length of a triangle, a and b are the remaining two side lengths, and C is the angle opposite to side c. To answer this question just plug in the known values:

m^2=21^2+12^2-2(21)(12) cos(62)

Simplify:

m^2=441+144-504 cos(62)

m^2=585-504 cos(62)

m=\sqrt{585-504cos(62)}

m≈18.665...

When rounded to the nearest tenth, m=18.7

6 0
2 years ago
Concept maps work because they _______.
AnnZ [28]
Showing the relationships among concepts.
7 0
3 years ago
Read 2 more answers
Prism with a length of 2 yd, a widht of 4 yd , and a height of 5yd​
lorasvet [3.4K]

Answer:

40 yd

Step-by-step explanation:

Rectangular prism formula:

A = lwh

A = (2)(4)(5)

A = 40

7 0
2 years ago
On the road, a bike sign in the shape of an isosceles trapezoid is to be painted. The sign and its dimensions are shown below. W
Oksana_A [137]

Equation

A = (b1 + b2)*h /2


Givens

b1 = 5 feet

b2 = 7 feet

h = 3 feet


Sub and solve

Area = (5 + 7)*3/2

Area = 12*3/2

Area = 36/2

Area = 18 Square feet.

7 0
3 years ago
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