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3 years ago

Thes Tano mare paranet.

Mathematics

1 answer:

melomori [17]3 years ago

3 0

Answer:

∠ 3 = 25°

Step-by-step explanation:

The sum of the 3 angles 85, 2x and x - 10 are a straight angle = 180°

85 + 2x + x - 10 = 180, that is

3x + 75 = 180 ( subtract 75 from both sides )

3x = 105 ( divide both sides by 3 )

x = 35

Thus x - 10 = 35 - 10 = 25

∠ 3 and x - 10 are Alternate angles and congruent, thus

∠ 3 = 25°

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Please help me with this question

Dafna1 [17]

Answer:

422 cm²

Step-by-step explanation:

Surface area of the composite figure = (surface area of the upper cuboid + surface area of lower cuboid) - 2(base area of the lower cuboid)

Surface area of composite figure = $(2(lw + lh + hw)) + (2(lw + lh + hw)) - 2(l*w)$

Upper cuboid has the following dimensions:

$l = 4, w = 3, h = 8$

Lower cuboid has the following dimensions:

$l = 10, w = 7, h = 5$

Plug these values into the formula

Surface area of composite figure

$= (2(4*3 + 4*8 + 8*3)) + (2(10*7 + 10*5 + 5*7)) - 2(4*3)$

$= (2(12 + 32 + 24)) + (2(70 + 50 + 35)) - 2(12)$

$= (136 + 310) - 24$

$= 446 - 24 = 422$

Surface area of composite figure = 422 cm²

8 0

4 years ago

Which of these strategies would eliminate a variable in the system of equations?

melomori [17]

5x -2y = 2 is the answer

8 0

3 years ago

Verdadero o Falso:

crimeas [40]

B is the correct answer

8 0

3 years ago

Johnny has 304 apples, his sister ate 301 of them. How many apples does he have? After His sister ate the apples a magic fairy m

sashaice [31]

Answer:

1. John still has 3 Apples

2. John now has 845679,63 Apples (I'm not sure if you've written the number of the multiplying fairy right...).

3. If the * is multiplying:

John now has 25937228,2 Apples.

Step-by-step explanation:

Just use the calculator.

7 0

3 years ago

Please help‼️<br> Given O below, if XY and YZ are congruent, what is the measure of chord XY?

Verdich [7]

Answer:

11.2

Step-by-step explanation:

yz = 11.2

since the corresponding arc of yz and xy are same, their measures will ba same too

Answered by GAUTHMATH

3 0

3 years ago