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Rina8888 [55]
3 years ago
12

  I need help on 7 and 8 plssssss

Mathematics
2 answers:
lilavasa [31]3 years ago
3 0
I think the domain and range are infinite
zaharov [31]3 years ago
3 0
<h3 /><h3>\huge \cal༆ Answer ༄</h3>

<h3>7. Find domain ~ </h3>

  • \sf - 6 \leqslant x < 5

or

  • \sf x ∈[ - 6,5)
<h3>8. Find range ~ </h3>

  • \sf - 2

or

  • \sf x ∈ (-2 , 7]
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A line with a slope of -2 passes thru the point (4,7)
Tpy6a [65]

Answer:

y - 7 = -2(x - 4)

Step-by-step explanation:

We are asked to write the equation of a line in point slope form

Step 1 : find slope

We are given the slope to be -2

Slope m = -2

Step 2: substitute m into point slope form

y - y_1 = m( x - x_1)

y - y_1 = -2 ( x - x _1)

Step 3: substitute the point into the equation

y - y_1 = -2( x - x _1)

( 4 , 7)

x_1 = 4

y_1 = 7

y - 7 = -2( x - 4)

We don't need to open the bracket because we are asked to write the equation in a point slope form

6 0
3 years ago
What is the value of 11−3m , when m = 2?
user100 [1]
When a number is next to a letter like so: 3m You would multiply, so 
3 ~ 2 = 6 then solve the problem like this

11-3m= ?
3~2=6
6-11=5
so 11-3m=5
 Hope this helps! :)


4 0
4 years ago
Read 2 more answers
Find the quotient.<br> 437 ÷ 15 =
lidiya [134]

Answer:

29.13333333.. and so on

Step-by-step explanation:

5 0
3 years ago
Suppose you have entered 79​-mile biathlon that consists of a run and a bicycle race. During your​ run, your average velocity is
kirza4 [7]

Answer:

The distance of the run is 10 miles

The distance of the bicycle race is 69 miles

Step-by-step explanation:

Let:

  • r = the distance for the run
  • 79 - r = the distance for the bicycle race
  • t = the time of the run
  • 5 - t = the time of the bicycle race

The run: r = 5t

The bicycle race: 79 - r = 23(5 - t)

Simplify the bicycle race:

  • 79 - r = 115 - 23t
  • -r = 36 - 23t
  • r = 23t - 36

Now we have two equations set up for r

  • r = 5t
  • r = 23t - 36

We know that r = r, so 5t must equal 23t - 36

  • 5t = 23t - 36
  • 5t + 36 = 23t
  • 36 = 18t
  • t = 2

Now we know that the run took 2 hours.

Plug it back into the equation for the run to find the distance for the run

  • r = 5t
  • r = 5(2)
  • r = 10

The run is 10 miles

To solve for the bicycle race, we simply subtract 10 from 79, because we know that the two distances combined are 79.

  • 79 - 10 = 69

The bicycle race is 69 miles.

-Chetan K

4 0
3 years ago
Read 2 more answers
Is 5.828 a rational number?
aksik [14]

Answer:

idk

Step-by-step explanation:

mabye ask google calculator

7 0
3 years ago
Read 2 more answers
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