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MatroZZZ [7]
3 years ago
8

oil is leaking out of a tank. the depth of oil in the tank for 60 seconds is shown below. use the graph to work out the rate of

decrease of depth, in cm/s, at 10 seconds. you must show your working.

Mathematics
1 answer:
FrozenT [24]3 years ago
3 0

Answer:

Step-by-step explanation:

draw a tangent starting from (0,80) and touches at (10,60)... Example attached if needed... Good Luck! ;)

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If a car travels at a speed of 25mi/h for t hours, then travels 45 mi/h for m hours, what does 25t+45m represents
Kryger [21]
Hey mate!
You stuck?

It shows the expression of the sum of the total miles per hour the car traveled.

Hope this helps! :)
4 0
2 years ago
PLZZZ HLPPP MEEE The S's in the SSS Similarity theorem states that two triangles are similar if they have ___________ proportion
Zigmanuir [339]

Answer:

3

Step-by-step explanation:

SSS similarity states that all 3 sides must be proportional for the triangles to be similar

6 0
3 years ago
Find all the powers of 4 in the range 4-1000
lara31 [8.8K]

4¹ =  4
4² =  16
4³ =  64
4⁴ =  256

(4⁵ =  1,024  too big)

3 0
3 years ago
What is the variable in the expression: 25 + 5z - 3?
Alekssandra [29.7K]

Answer:

The variable is z

Step-by-step explanation:

8 0
3 years ago
In an arithmetic sequence, = 5 and = 11.
Free_Kalibri [48]

Answer:

1134.62 (THE SUM OF 20 TERMS)

Step-by-step explanation:

First we write out our given information:

a8=2a2

a11=18

an is an arithmetic sequence.

Where here an means the nth term of our sequence.

What does an arithmetic sequence mean? It means to get to the next term in your sequence you add a constant (c) each time:

an+1=an+c

Equivalently:

an+1−an(n+1)−n=c

So an is of slope c (c2 is another constant):

an=cn+c2

Where here c2=a0 (Substitute in n=0 and see why that has to be the case if we let a0 exist)

Now we use the other given information to try to come up with a solution.

Let n=2:

a2=2c+c2

Let n=8, using the above equation we have:

a8=8c+c2=2a2=4c+2c2

Let n=11

a11=18

a11=11c+c2

But a11−a8=(11c+c2)−(8c+c2)=3c

Hence, a11=3c+a8

a11=3c+4c+2c2=18

a11=3c+8c+c2=18

5 0
2 years ago
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