All categories

2 years ago

Can someone help with this?

Mathematics

2 answers:

MAXImum [283]2 years ago

8 0

I belive it is the second option!

gayaneshka [121]2 years ago

3 0

8(2y+y)

hope it helps!!!

You might be interested in

A box of colored crayons contains 16 distinct colors. In how many ways can 14 colors be chosen, assuming that the order of the c

Harrizon [31]

Could you rephrase that? Is it just 14 multiplied by 14?

6 0

3 years ago

Read 2 more answers

Dilate the the triangle, scale factor = 3 (positive 3, ignore the

HACTEHA [7]

Answer:

The rule of dilation is $P'(x,y) = 3\cdot P(x,y)$ .

The vertices of the dilated triangle are $A'(x,y) = (-21, -18)$ , $B'(x,y) = (-15,-10)$ and $C'(x,y) = (-3,-15)$ , respectively.

Step-by-step explanation:

From Linear Algebra, we define the dilation by the following definition:

$P'(x,y) = O(x,y) + k\cdot[P(x,y)-O(x,y)]$ (1)

Where:

$O(x,y)$ - Center of dilation, dimensionless.

$k$ - Scale factor, dimensionless.

$P(x,y)$ - Original point, dimensionless.

$P'(x,y)$ - Dilated point, dimensionless.

If we know that $O(x,y) = (0,0)$ , $k = 3$ , $A(x,y) = (-7,-6)$ , $B(x,y) = (-5,-2)$ and $C(x,y) =(-1,-5)$ , then dilated points of triangle ABC are, respectively:

$A'(x,y) = O(x,y) + k\cdot [A(x,y)-O(x,y)]$ (2)

$A'(x,y) = (0,0) + 3\cdot [(-7,-6)-(0,0)]$

$A'(x,y) = (-21, -18)$

$B'(x,y) = O(x,y) + k\cdot [B(x,y)-O(x,y)]$ (3)

$B'(x,y) = (0,0) + 3\cdot [(-5,-2)-(0,0)]$

$B'(x,y) = (-15,-10)$

$C'(x,y) = O(x,y) + k\cdot [C(x,y)-O(x,y)]$ (4)

$C'(x,y) = (0,0) +3\cdot [(-1,-5)-(0,0)]$

$C'(x,y) = (-3,-15)$

The rule of dilation is:

$P'(x,y) = 3\cdot P(x,y)$ (5)

The vertices of the dilated triangle are $A'(x,y) = (-21, -18)$ , $B'(x,y) = (-15,-10)$ and $C'(x,y) = (-3,-15)$ , respectively.

7 0

2 years ago

Tom buys a hat for $13.00 plus 11% sales taxes.

Afina-wow [57]

Answer:

Tom

Tax = (11/100) × 13

Tax = $1.43

Tom paid 13 +1.43 = $14.43

Lyn

Tax = (9/100)× 21

Tax = $1.89

Lyn paid 21 + 1.89 = $22.89

b) Lyn paid more for taxes.

7 0

3 years ago

What is the constant of propotionality in the equation 3y=2x?

liq [111]

Answer:

k=2/3

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x = k or y = kx

In this problem we have 3y = 2x

Isolate the variable y

Divide by 3 both sides

y = 2/3x

Remember that

In a proportional relationship the constant of proportionality k is equal to the slope m of the line

The slope of the line m is

m = 2/3

therefore

The constant of proportionality k is

k = 2/3

I hope this helped have a wonderful day/night ! <3 (depends what time it is)

4 0

3 years ago

I only need help with number 6.Can you tell me how to find the perimeter?

ratelena [41]

That is complicated but, I'll go with 15.

6 0

3 years ago