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3 years ago

Question 13 PLEASE HELP Find the x-intercept of -x +2y =6. X-intercept: (___,0)

Mathematics

2 answers:

aivan3 [116]3 years ago

8 0

Answer:

(-6,0)

Step-by-step explanation:

The x intercept is when y = 0.

So, -x +2(0) = 6

-x = 6

x = -6

____ [38]3 years ago

6 0

ANSWER.......(-6,0)

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John throws a ball upward at a rate of 22 meters per second from an

nordsb [41]

Answer:

1.5 seconds

Step-by-step explanation:

The height equation is supposed to be ...

h(t) = -16t^2 +22t +3

We want to find the positive value of t where h(t) = 0.

0 = -16t^2 +24t -2t +3 . . . . facilitate factoring

0 = -8t(2t -3) -1(2t -3) . . . . . factor by pairs

0 = -(8t +1)(2t -3) . . . . . . . . complete the factoring

The solutions to this are ...

t = -1/8, 3/2

The ball will reach the ground in 1.5 seconds.

8 0

3 years ago

the scale on a map is 0.5 centimeter = 3 kilometers. on the map, town B is 12.5 centimeters away from town A. what is the actual

Nitella [24]

Answer:

75 kilometers.

Step-by-step explanation:

It is 75 because 0.5 goes into 12.5 25 times. 25 x 3 = 75.

That is why the answer is 75. Have a gr8 day (:

(Can I have brainliest?)

8 0

3 years ago

Find the slope of the line passing through the points ( 9, -5) and (1, -1)

Svetach [21]

Answer:

m = - $\frac{1}{2}$

Step-by-step explanation:

( $x_{1}$ , $y_{1}$ )

( $x_{2}$ , $y_{2}$ )

m = $\frac{y_{2} -y_{1} }{x_{2} -x_{2} }$

~~~~~~~~~

( 9 , - 5 )

( 1 , - 1 )

m = ( - 1 - ( - 5 ) ) / ( 1 - 9 ) = -  $\frac{1}{2}$

8 0

3 years ago

5. A Ferris wheel at an amusement park measures 16m in diameter. It makes 3 rotations

galina1969 [7]

Following are the responses to the given points:

For point a:

$Diameter\ (d)= 16\ m\\\\$

Calculating the 3 rotations for every minute:

Calculating time for completing 1 rotation:

$1\ rotation=\frac{60}{3}= 20\ second\\\\period=20 \ second\\\\$

The standard form of the equation of the sine and cosine function is:

$y=A \sin \{ B(x-c)\} +D\\\\y=A \cos \{ B(x-c)\} +D\\\\$

Calculating the Amplitue:

$A=\frac{max-min}{2}=\frac{17-1}{2}=\frac{16}{2}=8\\\\Period=\frac{2\pi}{B}\\\\20=\frac{2\pi}{B}\\\\B=\frac{2\pi}{20}\\\\B=\frac{\pi}{10}\\\\$

Calculating the phase shift:

for $\sin$ function: $c=5$

for $\cos$ function: $c=10$

Calculating the vertical shift:

$\to D=\frac{max+ min }{2}=\frac{17+ 1}{2}=\frac{18}{2}=9\\\\y=8 \sin \{ \frac{\pi}{10}(t-5)\} +9\\\\y=8 \cos \{ \frac{\pi}{10}(t-10)\} +9\\\\$

For point b:

$y> 12\ m\\\\12=8 \sin \{ \frac{\pi}{10}(t-5)\} +9\\\\12-9=8 \sin \{ \frac{\pi}{10}(t-5)\} \\\\3=8 \sin \{ \frac{\pi}{10}(t-5)\} \\\\\frac{3}{8}=\sin \{ \frac{\pi}{10}(t-5)\} \\\\\sin^{-1}\frac{3}{8}=\frac{\pi}{10}(t-5) \\\\\frac{\pi}{10} (0.38439677)=(t-5) \\\\1.22357+5=t \\\\t=6.22357\ second\\\\t=6.22\ second\\\\\sin^{-1}\frac{3}{8}=\frac{\pi}{10}(t-5) \\\\\frac{\pi}{10} (2.7571961)=(t-5) \\\\t=8.7764+5\\\\t=13.78\ second\\\\t_2-t_1=13.7764-6.22357= 7.55283\approx 7.55\ second \\\\$

Learn more:

Rotation: brainly.in/question/39626227

5 0

3 years ago

PLEASE HELPPP pleaseee

erastovalidia [21]

Ok so do you know how to do it?

8 0

3 years ago