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3 years ago

Someone help asap!!! Will give brainlist :)

Mathematics

1 answer:

KatRina [158]3 years ago

5 0

Answer:

$a) \: constant \: of \: proportionality \: (k) \\ = \frac{90}{2} \\ = 45 \\ \\ b) \: \frac{distance}{time} = k \\ \therefore \: \frac{d}{t} = k \\ \\ c) \: \frac{d}{t} = k \\ \\ \therefore \: d = tk$

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In a right triangle, a = 14.2 cm and b = 13.9 cm. Find c. Round to the nearest tenth.

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Answer:

-----

Step-by-step explanation:

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2 years ago

Geometry help please

Nana76 [90]

Answer:

CED = 117

Step-by-step explanation:

21x +21 = 7x +49

21x - 7x = 49 - 21

14x = 28

x = 28/14

x = 2

7x + 49

=7(2) + 49

=14 + 49

=63

180 -63 = 117

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3 years ago

NEED HELP ASAP Given G (-6,5) and H (2, -7), what is the length of GH

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$\bold{\huge{\green{\underline{ Solution }}}}$

$\bold{\underline{ Given}}$

We have given that the coordinates of the end point G and H are ( -6,5) and ( 2, -7 )

$\bold{\underline{To \: Find :- }}$

We have to find the length of GH

$\bold{\underline{Let's \: Begin :- }}$

The coordinates of G = ( -6 , 5 )

The coordinates of H = ( 2 , - 7 )

According to the distance formula, we get :- 

$\purple{\bigstar}\boxed{\sf{Distance\:\:GH=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2\;}}}$

Here, x1 = -6 , x2 = 2 and y1 = 5 , y2 = -7

Subsitute the required values in the above formula 

$\sf{ Distance \:GH = √( -6 - 2)² + ( 5 -(-7))²}$

$\sf{Distance\:GH= √(-8)^2+(5 + 7)^2}$

$\sf{Distance\:GH=√(-8)^2+(12)^2}$

$\sf{ Distance \:GH =√64 + 144 }$

$\sf{ Distance \:GH =√ 208}$

$\sf{ Distance\: GH = √ 2 × 2 × 2 × 2 × 13}$

$\sf{ Distance \:GH = 4√13}$

$\sf{\red{ Hence\: the \: length\:of \: GH \: is \: 4√13 \: units}}$

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1 year ago

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Given:
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