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3 years ago

Three shirts cost $9.99. How much does it cost for 8 shirts?

Mathematics

2 answers:

Nata [24]3 years ago

6 0

Answer:

$26.64

Step-by-step explanation:

9.99 ÷ 3 = 3.33

3.33 × 8 = 26.64

Olegator [25]3 years ago

5 0

Answer:

Step-by-step explanation:

Mines came up as 79.78 but ion think that’s right

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2x + x + x + 2y × 3y × y

Vilka [71]

Answer:

$\large\boxed{4x+6y^3}$

Step-by-step explanation:

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3 years ago

Line I is parallel to line m.if the maesure of angle 6 is 75 what is the measure of angle 3

devlian [24]

Answer:

105

Step-by-step explanation:

l is parallel m so angle 3+angle 6=180

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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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3 years ago

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Andru [333]

No next time ask nicely instead of “and answer the question that follow”

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