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3 years ago

I only got 2 hours of sleep so I have no idea what's going on here. I just need some help, my bad.

Mathematics

2 answers:

Katarina [22]3 years ago

6 0

B. because the unit rate is the slope. it'll go up 3 and over 2, and the line will start at 0.

ira [324]3 years ago

3 0

Answer:

i think b

Step-by-step explanation:

hope i could help

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Simplify to create an equivalent expression. 1+4(6p−9)

myrzilka [38]

Answer: -35+24p

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3 years ago

PLEASE HELP! 7 x blank = 1

Tcecarenko [31]

Answer: 1/7

Step-by-step explanation:

7x=1

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3 years ago

What is the equation of the exponential graph shown?

Evgesh-ka [11]

Answer:

f(x) = 100*(1/2)ˣ

Step-by-step explanation:

Exponential function is:

f(x) = a*bˣ

Use two points on the graph to determine the value of a and b:

(0, 100), (1, 50)

Find the values of a and b:

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f(x) = 100*(1/2)ˣ

7 0

2 years ago

If DX/DT= 2cm/s x=-1 y=x^2+1 DY/DT=??

kobusy [5.1K]

Answer:

$\frac{dy}{dt}$ = - 4 cm/s

Step-by-step explanation:

Let us revise the chain rule

If $\frac{dy}{dt}$ = a and $\frac{dx}{dt}$ = b, then

$\frac{dy}{dx}$ = $\frac{dy}{dt}$ ÷ $\frac{dx}{dt}$ = $\frac{a}{b}$

∵ y = x² + 1

- Use the differentiation to find $\frac{dy}{dx}$

∴ $\frac{dy}{dx}$ = 2x

∵ x = -1

- Substitute x by -1 in $\frac{dy}{dx}$

∴ $\frac{dy}{dx}$ = 2(-1)

∴ $\frac{dy}{dx}$ = -2

∵ $\frac{dy}{dt}$ = $\frac{dy}{dx}$ × $\frac{dx}{dt}$

∵ $\frac{dx}{dt}$ = 2 cm/s

∴ $\frac{dy}{dt}$ = (-2) × (2)

∴ $\frac{dy}{dt}$ = - 4 cm/s

8 0

3 years ago

A cyclist rode at an average speed of 15 mph for 30 miles. How long was the ride? Question 6 options: 0.5 hours 1 hour 2 hours 3

Rus_ich [418]

Answer:

2 hours

Step-by-step explanation:

using the relationship

distance = speed × time, then

time = $\frac{distance}{speed}$ = $\frac{30}{15}$ = 2 hours

6 0

3 years ago

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