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2 years ago

What is difference between -0.4 and 44.4 a) 40 b) 44 c) -44 d)44.8

Mathematics

2 answers:

vladimir2022 [97]2 years ago

4 0

Answer:

Step-by-step explanation:

44.4--0.4=-44

ololo11 [35]2 years ago

3 0

Answer: d

Step-by-step explanation:

44,4 - (-0,4) = 44,4 + 0,4= 44,8

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You are taking an exam and there are still many questions left to be solved. You already got 18 questions correct out of 25. The

UkoKoshka [18]

The answer is 2

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Which of the following are solutions to the equation below?

scoundrel [369]

Answer:

The correct options for the solution values are:

$x=2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

Step-by-step explanation:

Given the expression

$x^2+10x+25=8$

Subtract 25 from both sides

$x^2+10x+25-25=8-25$

Simplify

$x^2+10x=-17$

Add 25 or 5² to both sides

$x^2+10x+5^2=8$

$x^2+10x+5^2=\left(x+5\right)^2$

so the expression becomes

$\left(x+5\right)^2=8$

$\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}$

solve

$x+5=\sqrt{8}$

Subtract 5 from both sides

$x+5-5=2\sqrt{2}-5$

$x=2\sqrt{2}-5$

solve

$x+5=-\sqrt{8}$

Subtract 5 from both sides

$x+5-5=-2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

Therefore, the solution to the equation

$x=2\sqrt{2}-5,\:x=-2\sqrt{2}-5$

Hence, the correct options for the solution values are:

$x=2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

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2 years ago

If a right triangle has the length of 3 cm and 2 cm what is the hypotenuse

Alik [6]

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