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Ainat [17]
3 years ago
13

5) Which one of the following proportions is NOT true?*

Mathematics
1 answer:
Tpy6a [65]3 years ago
6 0
The second one, 69/24 = 23/8 and cannot be simplified further
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What is the equation, in slope-intercept form, of the line that is perpendicular to the line y – 4 = –(x – 6) and passes through
Mkey [24]
Let's convert the equation in point-slope form to slope-intercept form.

y - 4 = -(x - 6)
Multiply everything out.
y - 4 = -x + 6
Add 4 to both sides.
y = -x + 10

To be perpendicular, the slope of the new has to be the reciprocal of the other line. To slope in this equation is -1/1. To get the reciprocal, flip the numerator and denominator and change the sign too.

-1/1 becomes 1/-1, and changes to 1/+1, or 1.

y = x + b

Input the coordinate point and solve for b.

-2 = -2 + b
Add 2 to both sides.
0 = b

y = x
4 0
3 years ago
Choose the best decimal to represent 5 3/7
WINSTONCH [101]

Answer:

5.4285

Step-by-step explanation:

Calculator

3 0
3 years ago
What is the length of a rectangle with width 18 inand area 153 in.??
lorasvet [3.4K]

Answer:

8.5 in

Step-by-step explanation:

Area = Length × Width

153 = L × 18

L = 153÷18

L= 8.5

L= 8.5 in

7 0
2 years ago
A cyclist travels 2 miles in 10 minutes and then a further 7 miles in 20 minutes without stopping.
Tresset [83]

18 mile per hour

Step-by-step explanation:

average speed = total distance covered by total time taken

so, avg. speed = ( 2+ 7 ) / ( 20 + 10 )

= 9 / 30

= 3 / 10

= 0.3 miles per minute

= 18 mile per hour

6 0
3 years ago
What is the equation of the quadratic graph with a focus of (5, 6) and a directrory of y = 2?
mina [271]
The vertex of the graph is at (5, (6 + 2)/2) = (5, 4)
The equation of a quadratic graph is given by y - k = 4p(x - h)^2, where (h, k) is the vertex, p is the distance from the vertex to the focus.
Here, (h, k) = (5, 4) and p = 6 - 2 = 2 and since the focus is on top of the directrix, the parabola is facing up and the value of p is positive.
Therefore, the required equation is y - 4 = 4(2)(x - 5)^2
y - 4 = 8(x^2 - 10x + 25)
y - 4 = 8x^2 - 80x + 200
y = 8x^2 - 80x + 204
4 0
3 years ago
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