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sammy [17]
3 years ago
8

20 points ! Help please

Mathematics
1 answer:
tankabanditka [31]3 years ago
8 0

Answer:

The answer is true.

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Figure A is a scale image of figure B. Figure A maps to figure B with scale factor of 0.25.
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Use a property of proportions that states that their reciprocals are equal if the two ratios are equal you get
x : 1
6 0
3 years ago
3.) A linear function passes through the points (0, 2) and (-4,0).
kotegsom [21]

Answer:

Step-by-step explanation:

The x-intercept is where y is 0.

The y-intercept is where x is 0.

The x-intercept would be (-4, 0) and the y-intercept (0, 2)

Using the slope formula, (y2-y1/x2-x1), we can find the slope which is 1/2.

7 0
3 years ago
given that oa=2x+9y ob=4x+8y and cd= 4x-2y, explain the geometrical relationships between the straight lines ab and cd mathswatc
tangare [24]

The geometrical relationships between the straight lines ab and cd

is the straight line ab is parallel to the straight line cd

Step-by-step explanation:

Let us revise some notes:

  • If a line is drawn from the origin and passes through point A (a , b), then the equation of OA = ax + by
  • If a line is drawn from the origin and passes through point B (c , d), then the equation of OB = cx + dy
  • To find the equation of AB subtract OB from OA, then AB = (c - a)x + (d - b)y
  • The slope of line AB = \frac{-coefficient(x)}{coefficient(y)}

∵ oa = 2 x + 9 y

∵ ob = 4 x + 8 y

∵ ab = OB - OA

∴ ab = (4 x + 8 y) - (2 x + 9 y)

∴ ab = 4 x + 8 y - 2 x - 9 y

- Add like terms

∴ ab = (4 x - 2 x) + (8 y - 9 y)

∴ ab = 2 x + -y

∴ ab = 2 x - y

∵ The slope of ab = \frac{-coefficient(x)}{coefficient(y)}

∵ Coefficient of x = 2

∵ Coefficient of y = -1

∴ The slope of ab = \frac{-2}{-1}=2

∵ cd = 4 x - 2 y

∵ Coefficient of x = 4

∵ Coefficient of y = -2

∴ The slope of cd = \frac{-4}{-2}=2

∵ Parallel lines have same slopes

∵ Slope of ab = slope of cd

∴ ab // cd

The geometrical relationships between the straight lines ab and cd

is the straight line ab is parallel to the straight line cd

Learn more;

You can learn more about the parallel lines in brainly.com/question/10483199

#LearnwithBrainly

4 0
3 years ago
Analyzing Graphs to Determine Input Values
miv72 [106K]

Answer:

Step-by-step explanation:

se the graph to determine the input values that

correspond with f(x) = 1.

O x=4

O x= 1 and x = 4

O x= -7 and x = 4

O x= -7 and x = 2

6.

(-6, 4)

4

(1,4) w

2

(-7, 1)

(2, 1) x

2

4

-8/ -6 -4 -2

-2

-4

7 0
3 years ago
A loaf of bread costs $1.40 and the markup is 30% of the selling price. Find the selling price.
andreev551 [17]

Answer:

The selling price after the markup is $1.82

Step-by-step explanation:

$1.40 * .30 =

Multiply $1.40 times .30 (which is same as 30%)

$1.40 * .30 = $0.42

Add $1.40 and $0.42

= $1.82

Hope this helps.

6 0
3 years ago
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