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3 years ago

8

Um i dont know the answer to this pls help

2 answers:

lorasvet [3.4K]3 years ago

8 0

Answer:

c

Step-by-step explanation:

because i am smart

kvv77 [185]3 years ago

3 0

Answer:

its the first one because when the length of the sides of a triangle double, the area becomes quadruple.

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The graph above is a transformation of the function x2 Write an equation for the function graphed above

lutik1710 [3]

Answer: y=0,5x²-x-1,5.

Step-by-step explanation:

$(-1;0)\ \ \ \ (3;0)\ \ \ \ (1;-2) \ \ \ \ y=ax^2+bx+c\ ?\\\left\{\begin{array}{ccc}a*(-1)^2+b*(-1)+c=0\\a*3^2+b*3+c=0\\a*1^2+b*1+c=-2\end{array}\right \ \ \ \ \ \left\{\begin{array}{ccc}a-b+c=0\ \ (1)\\9a+3b+c=0\ (2)\\a+b+c=-2\ (3)\end{array}\right \\$

We summarize (1) and (3):

$2a+2c=-2\ |:2\\a+c=-1\ \ \ \ \Rightarrow\\a+b+c=-2\\(a+s)+b=-2\\-1+b=-2\\b=-1.$

Substitute b=-1 into (2):

$9a+3*(-1)+c=0\\9a-3+c=0\\9a+c=3\ \ (5).\\$

From (5) subtract (4):

$8a=4\ |:8\\a=0,5.\ \ \ \ \Rightarrow\\$

Substitute a=0,5 into (4):

$0,5+c=-1\\c=-1,5.$

Hense:

y=0,5x²-x-1,5.

5 0

2 years ago

The perimeter of the regular polygon shown is 18 cm

kirill115 [55]

A polygon has 5 sides you can find the length of one side by dividing the total perimeter of 18 by the number of sides of 5. giving you 3.6

4 0

3 years ago

Translate the following statement into a mathematical equation:

Karolina [17]

Its the second one: 5n-3=12

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3 years ago

Polygon ABCD is a scaled copy of polygon EFGH.

borishaifa [10]

Answer:

Step-by-step explanation:

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2 years ago

a shed in the shape of a rectangular prism measures x feet high, x + 6.5 feet wide, and is x-4 feet deep. The volume of the shed

Artyom0805 [142]

Answer:

x-9

Step-by-step explanation:

HOPE THIS HELP -_-

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3 years ago