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3 years ago

These lines are perpendicular. is the statement true or false? y=-5/2x+4 and y=5/2x-3

Mathematics

1 answer:

Nataly_w [17]3 years ago

8 0

Answer: False

Step-by-step explanation:

In order for lines to be perpendicular, their slopes must be opposite reciprocals.

$y=-\dfrac{5}{2}x+4\qquad \rightarrow \quad m=-\dfrac{5}{2}\\\\\\y=\dfrac{5}{2}x-3\qquad \rightarrow \quad m=\dfrac{5}{2}$

Their slopes are opposites (opposite signs). $\checkmark$

Their slopes are NOT reciprocals (fractions flipped) $X$

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For each pair of similar figures, find the ratio of the area of the first figure to the area of the second.

Hitman42 [59]

answer:

$\frac{4}{9}$

explanation:

the area of the larger square is 36 (6*6), and the area of the smaller square is 16 (4*4). to find the ratio of the area, simply just put 16 over 36 and simplify.

$\frac{16}{36} = \frac{4}{9}$

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3 years ago

A family went to a baseball game. The cost to park cars was $5 and the cost per ticket was $21. Write a linear function in the f

Sophie [7]

Answer:

The total cost $y$ in dollars of going to the baseball game for $x$ people of a family can be given as:

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Step-by-step explanation:

Given:

At a baseball game:

Cost of car parking = $5

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To write an equation in the form of $y=mx+b$ representing the total cost of going to the baseball game.

Solution:

The total number of people in the family is = $x$

Using unitary method to find the cost of tickets for $x$ persons.

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Then, $x$ tickets will cost in dollars = $21x$

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Thus, the total cost $y$ in dollars of going to the baseball game for $x$ people of a family can be given as:

$y=21x+5$

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3 years ago

What is another way to write x 4/3

zloy xaker [14]

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Step-by-step explanation:

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4 years ago

How many solutions does the equation (20 - 12x) = 5 - 3x have?

Alborosie

Answer:

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Step-by-step explanation:

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2 years ago

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