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andrew11 [14]
3 years ago
14

Which of the diagrams below represents the contrapositive of the statement "If it is an elm, then it is a tree"?

Mathematics
1 answer:
Murrr4er [49]3 years ago
7 0

Answer:

Right

Step-by-step explanation:

For a contrapositive, we switch the hypothesis and conclusion and then negate it.

Switch

If it is a tree, then it is an elm

Negate

If it is not a tree, then it is not an elm.

Not tree belongs inside not elm

Right


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Please answer correctly !!!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!
Anni [7]

Answer:

180-x^{2}

Step-by-step explanation:

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3 years ago
What is 2/3 x (9+12)
GalinKa [24]
2/3 x (9+12) is 14. Hope it helps :)
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3 years ago
How much work is done in lifting a 1.4-kg book off the floor to put it on a desk that is 0.7 m high?
nalin [4]

Answer:

Step-by-step explanation:

Work is said to be done when a force applied to an object cause the body to move in a specified direction.

Work-done = Force * Distance

Since Force = mass * acceleration due to gravity

Work-done =  mass * acceleration due to gravity * distance

Given mass = 1.4kg, distance = 0.7m and g = 9.8m/s²

Workdone in lifting the book off the floor = 1.4*0.7*9.8

Workdone = 9.604Joules

- Similarly, work done in lifting a 21-lb weight book 6 ft off the ground is expressed using the same formula as above;

Given mass = 21-lb, g = 32ft/s² and distance = 6ft

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Workdone = 4,032 lb-ft²/s²

Hence, work-done in lifting a 21-lb weight book 6 ft off the ground is  4,032 lb-ft²/s²

3 0
3 years ago
(−4x <br> 4<br> +6x <br> 2<br> +3)−(5x <br> 2<br> −3)
LekaFEV [45]

Answer:

(-4x4+6x2+3)-(5x2-3)

ok.

-4x4+6x2=2x6

2x6          3

-(+5x2)      -(-3)

_____       _____

-3x4       +  6

i think, im not sure but i think its -3x4+6. i might be wrong

3 0
3 years ago
What is the LCM of x^2+5 and x^2+10x+25?
avanturin [10]

Answer:

(x+5)²(x²+5)

Step-by-step explanation:

Given two functions x²+5 and x²+10x+25, to get their Lowest common factor, we need to to first factorize x²+10x+25

On factorising we have:

x²+5x+5x+25

= x(x+5) +5(x+5

= (x+5)(x+5)

= (x+5)²

The LCM can be calculated as thus

| x²+5, (x+5)²

x+5| x²+5, (x+5)

x+5| x²+5, 1

x²+5| 1, 1

The factors of both equation are x+5 × x+5 × x²+5

The LCM will be the product of the three functions i.e

(x+5)²(x²+5)

This hives the required expression.

5 0
3 years ago
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