3 years ago

Whats does 9+10 equal?

Mathematics

2 answers:

enyata [817]3 years ago

8 0

Answer:

TWENTY-ONE

Step-by-step explanation:

Hunter-Best [27]3 years ago

6 0

Answer:

Step-by-step explanation:

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3<br> Select the correct answer.<br> What are the solutions to this equation?<br> 16x² + 9 = 25

Charra [1.4K]

Answer:

Step-by-step explanation:

16x^2 + 9 = 25

16x^2 = 16

x^2 = 1

x = 1, -1

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3 years ago

Which expression is equivalent to -2.8x-6.3

wariber [46]

Answer:

-0.7(4x+9)

Step-by-step explanation:

-2.8x-6.3=-0.7(4x+9)

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3 years ago

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Brut [27]

I had the same question on my hw and I picked c \(“-)/

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3 years ago

Write an equation of the perpendicular bisector of the segment with end points M(1,5) and N(7,-1)

vitfil [10]

The perpendicular bisector of the segment passes through the midpoint of this segment. Thus, we will initially find the midpoint P:

$P=\dfrac{(1,5)+(7,-1)}{2}=\dfrac{(8,4)}{2}=(4,2)$

Now, we will calculate the slope of the segment support line (r). After this, we will use the fact that the perpendicular bisector (p) is perpendicular to r:

$m_r=\dfrac{\Delta y}{\Delta x}=\dfrac{5-(-1)}{1-7}=\dfrac{6}{-6}\iff m_r=-1$

$p\perp r\Longrightarrow m_p\cdot m_r=-1\Longrightarrow m_p\cdot(-1)=-1\iff m_p=1$

We can calculate the equation of p by using its slope and its point P:

$y-y_P=m_p(x-x_P)\\\\
y-2=1\cdot(x-4)\\\\
y-2=x-4\\\\
\boxed{p:~~y=x-2}$

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2 years ago

I'm having a hard time simplifying this expression: tan(sin−1 x)

Oksana_A [137]

Just do it on calcutar

7 0

3 years ago