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wlad13 [49]
3 years ago
14

Hi I need help on number 12 please

Mathematics
2 answers:
lapo4ka [179]3 years ago
5 0
Youre trying to find how many miles he can go in one hour, but you are given how far he can go in 7. Think about this as if it was the ratio 7:301. We need to get to 1:?. Divide 301 by 7 to get how many miles he can go in 1 hour.


Hope this helps!!!
galina1969 [7]3 years ago
3 0
This is a simple division problem
301/7= 43 mph
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Describe the continuity of the graphed function. Select all that apply.
victus00 [196]

Using continuity concepts, it is found that the correct options are:

  • The function is continuous at x = -4.
  • The function has an infinite discontinuity at x = -1.

-----------------------------

A function f(x) is continuous at x = a if:

\lim_{x \rightarrow a^{-}} f(x) = \lim_{x \rightarrow a^{+}} f(x) = f(a)

-----------------------------

  • At x = -4, there are no changes in the definition of the function, thus, it is continuous.
  • At x = -1, we have that:

\lim_{x \rightarrow -1^-} f(x) = 0

\lim_{x \rightarrow -1^+} f(x) = f(1) = 1

  • A different definition depending on the which side of -1 the function is, thus, it is a jump discontinuity.

A similar problem is given at brainly.com/question/21447009

8 0
3 years ago
Look at pic 10 points
koban [17]

Answer:

120

Step-by-step explanation: 10 x 12 = 120 m. Hope this helps

7 0
3 years ago
Solve for x: 1/2x + 4 = 9
Artist 52 [7]

Answer:

2 1/2 or 2.5

Step-by-step explanation:

1/2x +4=9

      -4    -4

1/2x= 5

/1/2    /1/2

x= 2 1/2 or 2.5

7 0
4 years ago
Find The Area of the parallelogram...
kotegsom [21]

Answer:

162 ft^2

Step-by-step explanation:

the formula for finding the area of a triangle is \frac{b*h}{2}

the base is 27 and the height is 12

\frac{27*12}{2}=\frac{324}{2} = 162

7 0
3 years ago
Read 2 more answers
Graph the functions on the same coordinate axis. {f(x)=−2x+1g(x)=x2−2x−3
NikAS [45]

Answer:

(2,-3) and (-2,5)

Step-by-step explanation:

Let us graph the two equations one by one.

1. f(x)=-2x+1

If we compare this equation with the slope intercept form of a line which is given as

y=mx+c

we see that m = -1 and c =1

Hence the slope of the line is -2 and the y intercept is 1. Hence one point through which it is passing is (0,1) .

Let us find another point by putting x = 1 and solving it for y

y=-2(1)+1

y=-2+1 = -1

Let us find another point by putting x = 2 and solving it for y

y=-2(2)+1

y=-4+1 = -3

Hence the another point will be (2,-3)

Let us find another point by putting x = -2 and solving it for y

y=-2(-2)+1

y=+1 = 5

Hence the another point will be (-2,5)

Now we have two points (0,1) ,(1,-1) ,  (2,-3) and (-2,5) we joint them on line to obtain our line  

2.

g(x)=y=x^2-2x-3

y=x^2-2x+1-1-3

y=(x-1)^2-4

(y+4)=(x-1)^2

It represents the parabola opening upward with vertices (1,-4)

Let us mark few coordinates so that we may graph the parabola.

i) x=0 ; y=y=(0)^2-2(0)-3=0-0-3=-3 ; (0,-3)

ii)x=-1 ; y=(-1)^2-2(-1)-3=1+2-3=0 ; (-1,0)

iii) x=2 ; y=(2)^2-2(2)-3 = 4-4-3 =-3 ;(2,-3)

iii) x=1 ; y=(1)^2-2(1)-3 = 1-2-3 =-4  ;(1,-4)

iii) x=-2 ; y=(-2)^2-2(-2)-3 = 4+4-3 =5  ;(-2,5)

Now we plot them on coordinate axis and line them to form our parabola

When we plot them we see that we have two coordinates (2,-3) and (-2,5) are common , on which our graphs are intersecting. These coordinates are solution to the two graphs.

3 0
4 years ago
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