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Rufina [12.5K]
3 years ago
9

W(−4+z)=mz+17 solve for z

Mathematics
1 answer:
serious [3.7K]3 years ago
4 0
Z =(17 + 4w)/(w - m) I believe
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Passes through (1,12) and has a vertex (10,-4)
agasfer [191]

Answer: 16/81 (x-10)^2 -4

Step-by-step explanation:

To write a vertex equation with just a point and the vertex, you have to figure out the variables.

In vertex form, the equation is y = a (x-h)^2 + k

Your y is 12, x = 1, h = 10, and k = -4

Plug everything into equation

12 = a (1 - 10)^2 -4

12 = a (-9)^2 - 4

12 = 81a - 4

16 = 81a

16/81 = a

Now you know what the 'a' value is.

If you graph 16/81 (x-10)^2 -4 , you will get a point at (1,12) and a vertex of (10,-4)!

I hope this helps!

3 0
3 years ago
A congruent is called
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Hi! In geometry, two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.<span> 

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8 0
3 years ago
Explain the steps necessary for solving the following equation. x^2-8x-20=0
kirza4 [7]
First factor the equation
(x-10)(x+2) = 0
Then solve for (x-10) and (x+2)
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8 0
3 years ago
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Three kids play tennis at the same tennis courts. Mark plays every fourth day, David plays every seventh day and Bryan plays eve
jonny [76]

Answer:

Wednesday (9 weeks later) = 10th October.

Step-by-step explanation:

We label the days with the initials of the names.

M= 4

D = 7

B = 6

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LCM of 6+7 + 4 = 84

We find 84 is the amount of days we need to add on to july 18th

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As Wednesday July 18th is exclusive it would be 84 days after this event.

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31 days in july = 31

31 days in Aug = 31

30 days in Sept = 30

= 92

102-92 = 10

We now know date is Wednesday 10th October

We can check 84 days = 9 weeks

13 days in July makes 31st july

31 days in Aug makes 31st Aug

30 days in Sept makes 30th Sept

= 74 days + 10 days = 84

10th October is the checked date and we know it is also a Wednesday as Wednesday had stayed exclusive and prove that there are 7 days in the week to account x 9, to account for an exact 9 weeks later duration.

6 0
3 years ago
Read 2 more answers
Help me with the part b!
ra1l [238]
Average speed =   (distance final - distance initial)/(time final - time initial)
Average speed = (30-0)km /(100 -0)min = 3/10 km/min

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7 0
3 years ago
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