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3 years ago

When finding scale factor do you multiply?

Mathematics

1 answer:

inessss [21]3 years ago

5 0

Divide the larger shape side/s by the smaller shape's side/s

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Please help need a 100 A) x=1, x=3 B) x=-1, x=3 C) x=-1, x=-3 D)x=1, x=-3

Sergeu [11.5K]

The question is asking for the intersection of the line and the parabola. Where does the blue parabola and the red line meet? at (-1, -3) and (3, 5)

Answer: B) x = -1 , x = 3

3 0

3 years ago

Sally purchased a Pokemon game for $10.50, and a racing game for $6.50 with a $20 bill. How much change did Sally get?

pantera1 [17]

Answer:

Step-by-step explanation:

1. Add the total of the price. $10.50+6.50=17$ The total of the items cost $17.

2. Subtract the cost from the amount you are paying. $20-17=3$ Sally gets $3 of change.

7 0

3 years ago

Read 2 more answers

Based on the tables, at what point do the lines y = 3x - 2 and y = -5x - 10 intersect?

Pepsi [2]

Intersect at where x=x and y=y
see where they have the same x and y values
that is at x=-1 and y=-5
intersect at (-1,-5)

8 0

3 years ago

What is the area of a cross section that is parallel to face CDHG ?

Dennis_Churaev [7]

Answer: Area of cross section that is parallel to face CDHG is 432 cm².

Step-by-step explanation:

Since we have given that

There is a cross section that is parallel to face CDHG.

So, Length of cross section would be 36 cm

Width of cross section would be 12 cm.

So, Area of cross section would be

$Length\times breadth\\\\=36\times 12\\\\=432\ cm^2$

Hence, Area of cross section that is parallel to face CDHG is 432 cm².

8 0

3 years ago

Read 2 more answers

Given that the quadratic equation has equal roots (k^2-1)x^2-2kx-3k-1=0

Alik [6]

Answer:

(See explanation for further details)

Step-by-step explanation:

The real expression is:

$(k^{2}-1)\cdot x{{2} - 2\cdot k \cdot x - 3\cdot k + 1 = 0$

The general equation for the second-order polynomial is:

$x = \frac{2\cdot k \pm \sqrt{4\cdot k^{2}-4\cdot (k^{2}-1)\cdot (-3\cdot k + 1)}}{k^{2}-1}$

This condition must be observed for the case of a quadratic equation with equal roots:

$4\cdot k^{2} - 4\cdot (k^{2}-1)\cdot (-3\cdot k + 1) = 0$

$k^{2} + (k^{2}-1)\cdot (3\cdot k + 1) = 0$

$k^{2} + 3\cdot k^{3} - 3\cdot k - k^{2}-1 = 0$

$3\cdot k^{3} - 3\cdot k - 1 = 0$

7 0

3 years ago