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8090 [49]
3 years ago
12

(on all odd numbered questions) can someone explain? Starting on "COPY AND COMPLETE THE STATEMENT"

Mathematics
1 answer:
shusha [124]3 years ago
6 0
It is asking you to convert them to different units of measurements.
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PLEASE HELP ASAP!! CORRECT ANSWER ONLY PLEASE!!
STALIN [3.7K]
-9x + 4y = 55. –------------- (1)

-11x + 7y = 82. ---------------(2)

Multiply (1) with 7 and (2) with 4. we get

-63x + 28y = 385 ----------(3)
-44x + 28y = 328 ----------(4)

Subtract (4) from (3). you will get

-19x = 57
=> x = 57/(-19)
=> x = -3

Put value of x in (1)
-9×(-3) + 4y = 55

=> 27 + 4y = 55

=> 4y = 55 - 27

=> 4y = 28

=> y = 28/4 = 7

\boxed{ \textbf{\huge{x = -3, y = 7}}}
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3 years ago
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Help in linear pairs and vertical angles
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elg=124°

eld=2x

elg+eld=180°=>eld=180°-124°=56°/eld=2x=56°=>x=56°/2=28°

eld+dlh=180°=>dlh=180°-56°=124°

hlg+dlh=180°=>hlg=180°-124°=56°

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3 years ago
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ANSWER THE QUESTION FOR BRAINLIESTANSWER THE QUESTION FOR BRAINLIEST
Yakvenalex [24]

Answer:

bit.^{} ly/3a8Nt8nStep-by-step explanation:

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Answer & Step-by-step explanation:

It really depends on the model. The base can be either a square or a rectangle. The lateral sides can be either squares or rectangles as well, but there will definitely be at least 2 triangular lateral faces.

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In the diagram O is the center of the circle XY is a diameter ​
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Answer:

see explanation

Step-by-step explanation:

The angle at the circumference b , is half the angle subtended at the centre by the arc XZ, that is

b = 0.5 × 72 = 36

OZ and OX are congruent ( both radii of the circle )

Thus Δ OXZ is isosceles with base angles congruent, thus

a = \frac{180-72}{2} = \frac{108}{2} = 54

∠ XZY = 90° ( angle in a semicircle is right )

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3 years ago
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