All categories

3 years ago

Can someone help me with this math homework please!

Mathematics

1 answer:

mel-nik [20]3 years ago

7 0

In case of Nina:

slope of graph = speed = 48-32/6-4 = 16/2 =8

y-32 =8(x-4)

y-32=8x-32

y=8x

d=8t

at x= 0 i.e at t= 0

d= 0m

In case of Ryan:

slope =speed = 47.5-35=6-4 = 12.5/2 =6.25

y-35=6.25(x-4)

y-35=6.25x-25

y=6.25x+10

d=6.25t+10

at t = 0, d= 10m

RYAN had a head start of 10 m

You might be interested in

Find the area of the shape. Either enter an exact answer in terms of pi or use 3.14 for pi and enter your answer as decimal.

SVETLANKA909090 [29]

Answer:

27π units^2

Step-by-step explanation:

This shape is exactly 3/4 of a full circle. Thus, if we find the area of a full circle with radius 6 units, we multiply the result by 3/4 to obtain the area of the figure shown.

A of full circle = πr²

In this particular case,

A of full circle = π(6 units)² = 36π units^2

Then the area of the given figure is

(3/4)(36π) units^2, or 27π units^2.

3 0

4 years ago

Which is the difference quotient of the function f(x) = x² + 3

den301095 [7]

Step-by-step explanation:

any girl come on fast...........

8 0

3 years ago

Read 2 more answers

John has a rope that is 10 yards long. HoW long is his rope in inches?

jek_recluse [69]

Answer:

360 in.

Step-by-step explanation:

1 yd = 36 in.

10 yd = 10 * 1 yd = 10 * 36 in. = 360 in.

7 0

3 years ago

Read 2 more answers

The equation for line j can be written as

yawa3891 [41]

Answer:

y + 8 = x + 10

Step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

y - 6 = -(x + 7) is in this form with slope m = - 1

given the slope of a line m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{-1}$ = 1

using m = 1 and (a, b) = (- 10, - 8), then

y + 8 = x + 10 ← equation of line k

or y = x + 2 ← in slope- intercept form

3 0

3 years ago

Read 2 more answers

The test to detect the presence of respiratory syncytial virus is 97% accurate for a person who has the virus and 99% accurate f

user100 [1]

$\textrm{97 percent accurate for individual with the virus}$

$\text{3 percent inaccurate}$

$\textrm{99 percent accurate for an individual}$

$\textrm{1 percent inaccurate probability}$

$\textrm{Probability of infected:}$

$.0055$

$\textrm{Probability of not being infected}$

$1 - .0055 = .9945$

$\textrm{Combine it all together}$

$0.0055 * 0.03 + 0.9945 * 0.01 = 0.01011$

$\textrm{The probability that a randomly chosen person gets an incorrect result is 0.01011}$

$\textbf{Answer}$

$\textrm{0.01011}$

5 0

3 years ago