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2 years ago

Х Y

Mathematics

1 answer:

Montano1993 [528]2 years ago

7 0

Answer:

y = 0.5x + 3

Step-by-step explanation:

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The reciprocal of 6 4/5 is?<br>

Anika [276]

To get the reciprocal of a number you divide 1 by that number. therefore the answer to this question is. 14705882 or 34/5

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3 years ago

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Simplify the expression and find its value when a = 5 and b = -3 .

kenny6666 [7]

Answer:

$\sf\longmapsto \: 38$

Step by step explanation:

$\sf\longmapsto \: 2a² + 2ab +3-ab$

$\sf\longmapsto \: 2a² + 3 + ab (2-1)$

$\sf\longmapsto \: 2a² + 3 + ab (1)$

$\sf\longmapsto \: 2a² + 3 + ab$

$\sf\longmapsto \: 2a² + ab + 3$

Putting a = 5 b = - 3

$\sf\longmapsto \: 2(5) {}^{2} + (5) (-3) +3$

$\sf\longmapsto \: 2 (25) - 15 + 3$

$\sf\longmapsto \: 50 - 12$

$\sf\longmapsto \: 38$

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3 years ago

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Parallelogram ABCD is given. Draw line EF so that it goes through the vertex A. Point E lies on the side BC and point F lies on

tresset_1 [31]

Answer:

The proof is explained step-wise below :

Step-by-step explanation :

For better understanding of the solution see the attached figure :

Given : ABCD is a Parallelogram ⇒ AB ║ DC and AD ║ BC

Now, F lies on the extension of DC. So, AB ║ DF

To Prove : ΔABE is similar to ΔFCE

Proof :

Now, in ΔABE and ΔFCE

∠ABE = ∠FCE ( alternate angles are equal )

∠AEB = ∠FEC ( Vertically opposite angles )

So, by using AA postulate of similarity of triangles

ΔABE is similar to ΔFCE

Hence Proved.

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3 years ago

Simplify: −3x2+7x+2+x3−x2−9

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Step-by-step explanation:

-3x² + 7x + 2 + x³ - x² -9

= x³ -3x² -x² + 7x +2 -9

= x³ -4x² + 7x -7

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3 years ago

1,000,000,000 meters equal 3 gigameters. True False

alekssr [168]

<span>it is 3000000000 because 1 gigameter is 1000000000 so 3 is 3000000000</span>

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