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cricket20 [7]
3 years ago
9

What is the expanded notation for 50

Mathematics
1 answer:
Lorico [155]3 years ago
7 0
Trick question. 50+0 because their is no tens place.
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when a linear function is graphed it passes through the points (-1,1), (1,5), and (3,9) what is the rate of change for the funct
vesna_86 [32]
Use the linear slope formula to solve for m: 

m=(y2-y1)/(x2-x1)

using the points (-1,1) and (1,5) you can find the slope for the first interval:
 
m=(5-1)/(1-(-1))
m=4/2
m=2

you can double check by using the same formula on the second interval, which is (1,5) to (3,9).

m=(9-5)/(3-1)
m=4/2
m=2 

therefore, the rate of change is 2. 
5 0
3 years ago
Solve the equation 8-2x=-8x+14
Salsk061 [2.6K]

Answer:

x= -3/5

Step-by-step explanation:

6 0
3 years ago
James wants to buy some CDs that cost $14 each and a DVD that costs $23. He has $65. Write an equation (in the Show your work ar
notsponge [240]

Answer:

3

Step-by-step explanation:

65-23= 42

42/14= 3

4 0
3 years ago
Read 2 more answers
Am I right?? <br> * Show examples &amp; details if I am wrong!! *
baherus [9]

Yes, you are correct.

From the image, we can see 3 triangles, the large triangle and the two triangles that make the larger triangle.

All 3 of these triangles are similar since they're angle measurements are the same (can be proven by geometry).

We can gather the following information from the given information.

  • The largest triangle (the one made up of two triangles) has a hypotenuse of 3+9=12, and a leg length of x. The hypotenuse to leg ratio is 12/x
  • The second largest triangle has a hypotenuse length x and leg length 9. The hypotenuse to leg ratio is x/9

We know the hypotenuse to corresponding leg ratio must be equal since these two triangles are similar. Thus, we have the equation:

12/x = x/9

Using the cross product property gives us:

x² = 9 × 12

x² = 108

Taking the square root of both sides gives us:

x = √108

= 6 √3

Thus, your answer is correct. Great job!

Let me know if you need any clarifications, thanks!

8 0
3 years ago
What is £42 increased by 10%
lara [203]
42+42 \cdot 10\%=42+42 \cdot 0.1=\underline{\underline{\pounds 46.2}}
3 0
3 years ago
Read 2 more answers
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