3 years ago

EASYY I WILL GIVE BRAINLY

Mathematics

2 answers:

Dahasolnce [82]3 years ago

5 0

57 cm 9x8 is 72 -1 is 71 9x6 is54 +3 = 57

Ksenya-84 [330]3 years ago

5 0

The Answer is 57 because 171/3 is 57

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Match the correct graph to the story.

emmainna [20.7K]

Answer:

The graph for number 1 (about the bunnies) is C.

The graph for number 2 (about the kettle) is A.

Step-by-step explanation:

C because it is an exponential function.

And A because it is the only one decreasing in temperature.

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3 years ago

From 75 campsites to 120 campsites

zmey [24]

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4 0

4 years ago

Square root of 6 minus square root of 7 divided by square root of 6 plus square root of 7

zheka24 [161]

$\frac{ \sqrt{6}- \sqrt{7} }{ \sqrt{6}+ \sqrt{7} } \\ 
 Multiply \ and \ divide \ by \ the \ conjugate. \\ 
 =\frac{ \sqrt{6}- \sqrt{7} }{ \sqrt{6}+ \sqrt{7} } \times \ \frac{ \sqrt{6}- \sqrt{7} }{ \sqrt{6}- \sqrt{7} } \\ 
=$
$\frac{( \sqrt{6}- \sqrt{7})^2 }{ \sqrt{6}^2 - \sqrt{7}^2 }} \\ 
 =\frac{( \sqrt{6}- \sqrt{7})^2 }{-1} \\ 
 =-( \sqrt{6}- \sqrt{7})^2 \\ 
 = -( \sqrt{6}^2-2( \sqrt{6} \sqrt{7}+ \sqrt{7}^2 \\ 
 =-(6 -2 \sqrt{42} +7) \\ 
 =-6+2 \sqrt{42}-7 \\ 
 =-13+2 \sqrt{42} \\ 
Answer: \ -13+2 \sqrt{42}$