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3 years ago

11

Help me out pleaseeeeee!!

1 answer:

makkiz [27]3 years ago

4 0

Answer:

y=1/2r hope i helped

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What is the rate of change of y=-4/9x+5

WARRIOR [948]

Answer:

Rate of change of y is $- \frac{4}{9}$

Step-by-step explanation:

$y = - \frac{4}{9} x + 5 \\ \\ differentiating \: with \: respect \: to \: x \\ \\ \frac{dy}{dx} = - \frac{4}{9} \frac{d}{dx} x + \frac{d}{dx} 5 \\ \\ \frac{dy}{dx} = - \frac{4}{9} .1 + 0 \\ \\ \huge \red{\frac{dy}{dx} = - \frac{4}{9} } \\ \\ rate \: of \: change \: of \: y =- \frac{4}{9}$

8 0

3 years ago

A paddleboat can move at a speed of 4 km/h in still water. The boat is paddled 12 km downstream in a river in the same time it

Bas_tet [7]

Answer:

Speed of the river = $\frac{4}{3}$ km per hour

Step-by-step explanation:

Speed of the boat in still water = 4 km per hour

Let the speed of the river = v km per hour

Speed of the boat upstream = (4 - v) km per hour

Time taken to cover 6 km = $\frac{\text{Distance}}{\text{Speed}}$

= $\frac{6}{4-v}$ hours

Speed of the boat downstream = (4 + v) km per hour

Time taken to cover 12 km = $\frac{12}{4+v}$ hours

Since, time taken by the boat in both the cases is same,

$\frac{6}{4-v}= \frac{12}{4+v}$

6(4 + v) = 12(4 - v)

24 + 6v = 48 - 12v

12v + 6v = 48 - 24

18v = 24

v = $\frac{24}{18}$

v = $\frac{4}{3}$ km per hour

3 0

3 years ago

Please help i know this is not that hard but i have this and one other thing due in a few minutes and i can't get them both in o

HACTEHA [7]

Answer:

0.2350 x 180 = 42.30

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

ILL GIVE BRAINLY THING

Leno4ka [110]

9514 1404 393

Answer:

d. The data is continuous because it is connected, without gaps.

Step-by-step explanation:

If you can draw the graph without lifting your pencil, then the data is continuous. That is the case here. The best description is the last one:

The data is continuous because it is connected, without gaps.

3 0

3 years ago

A decorative steel frame is shown below it is made of a circular section and and 6 stems the length of each stem is 45 cm work o

lutik1710 [3]

Answer:

552.78

Step-by-step explanation:

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3 years ago