Ask question

Ask question

All categories

2 years ago

15

Lyric can complete a 10-mile race in 2 hours. What is the rate that she is running?

1 answer:

mel-nik [20]2 years ago

7 0

She’s running at 5 mph. 10/2=5

You might be interested in

What is the rate of change for this graph

iragen [17]

Answer:

I think is is .5 then add your label

Step-by-step explanation:

3 0

3 years ago

Which of the following could be the number of real roots, including any repeated roots, of a quadratic polynomial with real coef

scoray [572]

I think the only answer here is 0
Idk tho

5 0

3 years ago

Find the constant rate of change for each linear function and interpret its meaning

Marina CMI [18]

the slope goes by several names

• average rate of change

• rate of change

• deltaY over deltaX

• Δy over Δx

• rise over run

• gradient

• constant of proportionality

however, is the same cat wearing different costumes.

and to get it, we simply need two points off of the straight line, hmm let's use the ones in the picture below.

$(\stackrel{x_1}{2}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{6}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{6}-\stackrel{y1}{4}}}{\underset{run} {\underset{x_2}{6}-\underset{x_1}{2}}}\implies \cfrac{2}{4}\implies \cfrac{1}{2}$

3 0

2 years ago

Write as an equation: If a number is decreased by five, and then the result is multiplied by two, the result is 26.

kvasek [131]

Answer:

18

Step-by-step explanation:

Because when 18-5=13 x 2=26

5 0

2 years ago

What is the degree 3 polynomial that has zeros -3,2 and 5 and in which the coefficient of x^2 is -8?

Setler [38]

For zeroes/roots r1,r2, r3
the facors of the polynomial is
(x-r1)(x-r2)(x-r3)

roots
-3,2,5
(x-(-3))(x-2)(x-5)
(x+3)(x-2)(x-5)
the coefient of the x term is -4
so mutliply the whole thing by 2

(2)(x+3)(x-2)(x-5)

expand
f(x)=2x^3-8x^2-22x+60

3 0

3 years ago