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Elena-2011 [213]
2 years ago
11

Pls help ASAP

Mathematics
2 answers:
frozen [14]2 years ago
5 0

answer is B) 3/9= 4/12 = 1/3

ella [17]2 years ago
5 0

Answer:

the Ratio between the small and big triangles is that of b. \frac{1}{3}

Step-by-step explanation:

We can solve this ratio problem by using the <u>Rate of Change formula</u> as shown below,

\frac{y2-y1}{x2-x1}

In this situation y would be the smaller triangle and x would be the larger triangle. Since all the values are given to use we can just plug those values in and solve for the rate of change / ratio.

\frac{4-3}{12-9} = \frac{1}{3}

So the rate of change or ratio between the small and big triangles is that of \frac{1}{3}

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

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Answer:

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Step-by-step explanation:

15*15+8*8=289

\sqrt{289}= 17

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2 years ago
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Find the equation of the line that is perpendicular to the line 4x+2y=1 and passes through the point (-4,3)
serious [3.7K]

First find the slope of the given line:

4x +2y = 1

Subtract 4x from each side:

2y = -4x + 1

Divide both sides by 2:

y = -2x +1/2

The slope is -2.

Now use the slope to find the y-intercept. Because  the line is perpendicular, you need to use the negative inverse of the slope.

The negative inverse of -2 is 1/2

Now using the point-slope form y - y1 = m(x-x1)

Use the inverse slope for m, and the given point(-4,3) to get:

y - 3 = 1/2(x+4)

Simplify:

y - 3 = x/2 +2

Add 3 to each side:

y = x/2 + 5

Reorder the terms to get y = 1/2x +5

The answer is D.

5 0
3 years ago
if the unit selling price is $2.50 and the unit cost is $1 what is the action needed to maintain the gross margin percentage whe
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(pls help me with this)
exis [7]

A. The coordinates of the midpoint of CD in terms of p and q is [(4 + p) / 2 , (5 + q) / 2]

B. The coordinates of D, Given that the midpoint of CD is (7, 1) is (10 , -3)

<h3>A. How to determine the mid point</h3>
  • Coordinate of C = (4, 5)
  • Coordinate of D = (p, q)
  • Mid point =?

Mid point = (X , Y)

X = (x₁ + x₂) / 2

X = (4 + p) / 2

Y = (y₁ + y₂) / 2

Y = (5 + q) / 2

Thus,

Mid point = (X , Y)

Mid point = [(4 + p) / 2 , (5 + q) / 2]

<h3>B. How to determine the coordinates of D</h3>
  • Mid point = (7, 1)
  • Coordinates of D =?

Mid point = (7, 1) = (X , Y)

X = (4 + p) / 2

7 = (4 + p) / 2

Cross multiply

7 × 2 = 4 + p

14 = 4 + p

Collect like terms

p = 14 - 4

p = 10

Y = (5 + q) / 2

1 = (5 + q) / 2

Cross multiply

1 × 2 = 5 + q

2 = 5 + q

Collect like terms

q = 2 - 5

q = -3

Coordinates of D = (p, q)

Coordinates of D = (10 , -3)

Learn more about coordinate geometry:

brainly.com/question/4976351

#SPJ1

5 0
2 years ago
HELP ASAP WILL MARK AS BRAINILEST TO WHOEVER GETS IT RIGHT
mixas84 [53]
The correct answer is B. For sure it is. It took a while to solve in my head
8 0
3 years ago
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