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dimulka [17.4K]
3 years ago
11

PlzI will mark brainliest​

Mathematics
1 answer:
Montano1993 [528]3 years ago
5 0

Answer:

a)10

b)-11.4

Step-by-step explanation:

you should find common denominator bit don't forget that they are negative

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Identify the independent and dependent variables in the following situation Julie notices that her plant grows one inch for ever
LUCKY_DIMON [66]

Answer:

Independent variable: amount of water

Dependent variable: growth of the plant

Step-by-step explanation:

In the statement "Julie notices that her plant grows one inch for every liter of water that it receives" it is implied that the growth of the plant is related proportionally to the amount of water it receives.

We know the amount of growth in function of the amount of water

The dependant variable, the result, is the growth of the plant.

Then, the independent variable is the amount of water, as it is the input to calculate the amount of growth.

4 0
3 years ago
In a certain function, y varies directly with x. If y = 6 when x = 8, find x when y = 9.
Hatshy [7]

If y = 6 when x = 8, then value of "x" when y = 9 is equal to 12

<u>Solution:</u>

Given that , In a certain function, y varies directly with x

And x = 8 when y = 6,

We have to find what will be the value of x when y = 9

Now, from the given information,

\begin{array}{l}{y \alpha x} \\\\ {y=c x \rightarrow(1)}\end{array}

where c is the proportionality constant

\begin{array}{l}{\text { Now, substitute } x=8 \text { and } y=6 \text { in }(1)} \\\\ {\rightarrow 8=c(6) \rightarrow c=\frac{8}{6}} \\\\ {\rightarrow c=\frac{4}{3}} \\\\ {\text { Then, }(1) \rightarrow x=\frac{4}{3} y} \\\\ {\text { So, when } y=9} \\\\ {\rightarrow x=\frac{4}{3}(9)} \\\\ {\rightarrow x=4 \times 3} \\\\ {\rightarrow x=12}\end{array}

Hence, x value is 12 when y value is 9

3 0
3 years ago
Find the area of the sector in<br> terms of pi.<br> 120°<br> 24<br> Area = [?] π<br> Enter
Nady [450]
Sector area= theta/360 x πr^2

Radius= 24/2= 12

Sector area= 120/360 x π(12)^2

Final answer :

Sector area = 48π
3 0
2 years ago
the jones family wants to enclose their circular garden with a fence. to the nearest foot , what is the minimum length of fencin
Elena L [17]

Answer:

The answer is D. 393ft

Step-by-step explanation:

So if you do 62.5•2=125

Then you do 125•3.14=392.5

After that then you round 392.5 and you get 393

theres your answer.

7 0
3 years ago
I need help pls !!!!!
Murrr4er [49]

Answer:

a=5

Step-by-step explanation:

right angel=90%

90-52=28

28-3=25

5(5)=25

hope this helps

3 0
2 years ago
Read 2 more answers
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