2 years ago

PLEASE ANSWER ALL QUESTIONS 69 POINTS WILL MARK BRAINLIST

Mathematics

1 answer:

IRINA_888 [86]2 years ago

4 0

Answer:

See below

Step-by-step explanation:

<u>Proportional relationship formula is:</u>

y = kx

a) Use point (1, 3.5) to find k:

3.5 = k*1
k = 3.5

b)<u> Unit rate is:</u>

cm per min

c) <u>Point (8, 28) indicates:</u>

Water level of 28 cm after 8 min

d) <u>x = 20, y =?</u>

y = 3.5(20) = 70 cm

You might be interested in

Y-3=-3y-43 solve the equation

Sonja [21]

Y-3=-3y-43
4y-3=-43
4y=-46
y=-11.5

8 0

3 years ago

Read 2 more answers

Select the system of linear inequalities whose solution is graphed.

Volgvan

The second one is your answer

8 0

2 years ago

HH represents the height of the tree (in centimeters), t tt years since Renata moved in. H = 210 + 33 t H=210+33tH, equals, 210,

Jet001 [13]

Answer:

Therefore the rate of growth of the tree is 33 cm/ yr.

Step-by-step explanation:

Given that,

The height of the tree is

H= 210 +33t

Here H represent the height of tree in cm and t is time in year.

The rate of growth is the first order derivative of the H with respect to time.

i.e The rate of growth $=\frac{dH}{dt}$

∴H= 210 +33t

Differentiating with respect to t

$\frac{dH}{dt} =0 +33$

$\Rightarrow \frac{dH}{dt}=33$

Therefore the rate of growth of the tree is 33 cm/ yr.

7 0

2 years ago

I need to find the value of “x”ik it’s easy but help

zvonat [6]

Answer:

Step-by-step explanation:

please follow me Friend

5 0

3 years ago

Can someone please help me with the last 3

mash [69]

Answer:

its pretty complicated

Step-by-step explanation:

4 0

3 years ago