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2 years ago

What is -12.4 + 9.2 + +1

Mathematics

2 answers:

Sveta_85 [38]2 years ago

8 0

Your answer would be -2.2

yulyashka [42]2 years ago

6 0

So do -12.4 + 9.2 Which is -3.2 Then do -3.2 + 1 Which is -2.2. To do this u have to figure out if ur first answer is, -12.4 + 9.2= -3.2. Figure out if it’s a positive (+) or negative (-) and then do the next one, so -3.2 + 1= -2.2 Hopefully this helped!

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motikmotik

Answer:

We conclude that the area of the right triangle is:

$A\:=p^2-2p-3$

Hence, option A is correct.

Step-by-step explanation:

From the given right-angled triangle,

Base = p+1

Perpendicular = 2p-6

Using the formula to determine the area of the right-angled triangle

Area of the right triangle A = 1/2 × Base × Perpendicular

$=\frac{1}{2}\left(p+1\right)\left(2p-6\right)$

Factor 2p-6: 2(p-3)

$=\frac{\left(p+1\right)\times \:2\left(p-3\right)}{2}$

Divide the number: 2/2 = 1

$=\left(p+1\right)\left(p-3\right)$

$\mathrm{Apply\:FOIL\:method}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd$

$=pp+p\left(-3\right)+1\cdot \:p+1\cdot \left(-3\right)$

$=pp-3p+1\cdot \:p-1\cdot \:3$

$=p^2-2p-3$

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$A\:=p^2-2p-3$

Hence, option A is correct.

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2 years ago

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k0ka [10]

Answer:

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TiliK225 [7]

Answer:

Step-by-step explanation:

the triangle has reflected across either x-axis or p-axis. If across x-axis, the triangle needs to translate left and then up (no option for this).

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2 years ago

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Answer:

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Step-by-step explanation:

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