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Ivenika [448]
3 years ago
7

△DEF is rotated about point N to △D′E′F′ .

Mathematics
1 answer:
NARA [144]3 years ago
7 0
1,4,3, though im not so sure about #3
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Two sides of a triangle have lengths 7 and 13.<br><br> The third side has a length that is
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19?

Step-by-step explanation:

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2 years ago
This is not math but i need help <br><br><br>what is a allusion​
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an expression designed to call something to mind without mentioning it explicitly; an indirect or passing reference.

Step-by-step explanation:

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3 years ago
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Translate the expression into a word phrase. k + 12 A. a number less than 12 B. 12 more than a number C. the product of a number
Burka [1]
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8 0
3 years ago
I need the answer for this exact question
denis23 [38]

Answer:

y=\frac{7}{2}x-20

Step-by-step explanation:

Let the equation of the line be y-y_1=m(x-x_1) where, 'm' is its slope and (x_1,y_1) is a point on it.

Given:

The equation of a known line is:

y=-\frac{2}{7}x+9

A point on the unknown line is:

(x_1,y_1)=(4,-6)

Both the lines are perpendicular to each other.

Now, the slope of the known line is given by the coefficient of 'x'. Therefore, the slope of the known line is m_1=-\frac{2}{7}

When two lines are perpendicular, the product of their slopes is equal to -1.

Therefore,

m\cdot m_1=-1\\m=-\frac{1}{m_1}\\m=-\frac{1}{\frac{-2}{7} }=\frac{7}{2}

Therefore, the equation of the unknown line is determined by plugging in all the given values. This gives,

y-(-6))=\frac{7}{2}(x-4)\\y+6=\frac{7}{2}x-14\\y=\frac{7}{2}x-14-6\\\\y=\frac{7}{2}x-20

The equation of a line perpendicular to the given line and passing through (4, -6) is y=\frac{7}{2}x-20.

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3 years ago
A pet store sells mice, reptiles, and birds.
kirill115 [55]

Answer:

The answer is C.

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3 years ago
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