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dlinn [17]
3 years ago
6

Help plz:))) I’ll mark u brainliest

Mathematics
1 answer:
cestrela7 [59]3 years ago
5 0
Answer:

Explanation:

Angle 1 = Angle 2 (Alternate Interior Angle)

Since they are equal it should mean that the sides are parallel
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A high-speed elevator can rise 360 feet in 20 seconds. Which expression represents the rate, in feet per second, of the elevator
sleet_krkn [62]

Answer:

360/20

Step-by-step explanation:

20 sec = 360 feet

feet per second means how many feet for every 1 second so

1 sec = 360/20 feet

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3 years ago
HELP PLS MANY POINTS Use the function f(x) to answer the questions: f(x) = 4x2 + 8x − 5 Part A: What are the x-intercepts of the
Andrei [34K]

Answer:

see below

Step-by-step explanation:

f(x) = 4x^2 + 8x − 5

To find the x intercepts set y = 0

0 =4x^2 + 8x − 5

Factor

0=(2x-1)(2x+5)

Using the zero product property

2x-1 =0     2x+5 =0

2x=1            2x = -5

x = 1/2           x = -5/2

The x intercepts are ( 1/2 ,0)   and ( -5/2,0)

Rewriting in vertex form by completing the square

4 ( x^2 + 2x) -5

4 ( x^2+2x +1) -4*1 -5

4 ( x+1) ^2 -9

Vertex form is

a( x-h) ^2 +k  where ( h,k) is the vertex

The vertex is ( -1,-9)

We know it opens upwards since a > 0

Plot the vertex and the x intercepts

The graph is symmetric on  based on the vertex

6 0
3 years ago
The sum of two numbers is 90. The larger number is 14 more than 3 times the smaller number. Find the numbers. First complete the
patriot [66]
Just use photo math it will work
4 0
3 years ago
On a prepaid plan, phone company A charges $76.00 for 500 minutes, and phone
sweet [91]

Answer:

Company B

Step-by-step explanation:

A is $0.15/min

   because 76/500

B is $0.12/min

  because 54/450

Company B is cheaper so it would be the better deal

7 0
3 years ago
The function f(x) = −x2 + 16x − 60 models the daily profit, in dollars, a shop makes for selling candles, where x is the number
castortr0y [4]
I wrote it out on paper and uploaded the answer for you. Let me know if you have any questions.

5 0
3 years ago
Read 2 more answers
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