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e-lub [12.9K]
3 years ago
7

How do you do this we need some really big help so help us please

Mathematics
1 answer:
rewona [7]3 years ago
7 0
Well that's division.
•36 divided by 9 is equal to 4.
• 81 divided by 9 is equal to 9.
•45 divided by 5 is equal to 9.
•56 divided by 7 is equal to 8.
•42 divided by 7 is equal to 6.
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Sophie [7]
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3 years ago
Please help me with this question I’m not sure if I’m correct
LenKa [72]

Answer:

5/2

Step-by-step explanation:

Negative slopes go left to right downwards if I remember correctly

7 0
3 years ago
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Suppose a triangle has two sides of length 2 and 3 and that angle between these two sides is 60 degrees. What is the length of t
Arturiano [62]

Answer:

Apply cosine rule:

c²=b²+a²-2ba cosC

C= pi/3 = 180/3 = 60 degrees

cosine 60 deg = 0.5

c²=2²+3²-[2×2×3×0.5]

c²=7

c=√7

c=2.645 ;length of third side of angle

Step-by-step explanation:

6 0
3 years ago
The average of five numbers is 12.4. the average of four of these numbers is 11. what is the value of the fifth number?
wariber [46]

average of 4 numbers is 11 so 11*4 = 44

average of 5 numbers is 12.4 so 12.4*5 = 62

the 5th number = 62-44 = 18

3 0
4 years ago
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The graph of y^2=x^2 is symmetric with respect to which axis? a. x-axis c. both b. y-axis d. neither
PtichkaEL [24]

Answer:

c. both

Step-by-step explanation:

Given equation is y^2=x^2

Now we need to check if the graph of  y^2=x^2 is symmetric with respect to which axis?

a. x-axis c. both b. y-axis d. neither

We know that if f(-x) reflect the graph about y-axis

so let's change x by -x into given function to see if that equation remains unchanged or not

y^2=(-x)^2

y^2=x^2

That is same as previous equation.

<u>Hence given graph is symmetric about y-axis.</u>

We know that if -f(x) reflect the graph about x-axis

so let's change y by -y into given function to see if that equation remains unchanged or not

(-y)^2=x^2

y^2=x^2

That is same as previous equation.

<u>Hence given graph is symmetric about x-axis.</u>

So the correct choice is c. both

3 0
3 years ago
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