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Gwar [14]
1 year ago
9

What is the equation of a parabola whose vertex is at the origin and whose directrix is y = 3? a. y2 = 12x b. y2 = -12x c. x2 =

-12y d. x2 = 12y
Mathematics
1 answer:
Ugo [173]1 year ago
5 0

Answer:

5x +3 43vis the answer fir it

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There are 5280 feet in 1 mile. how many feet are in 3.5 miles?
worty [1.4K]

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18,480

Step-by-step explanation:


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3 years ago
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Select the correct solution for the expression.<br><br> 2/5+3/8
igor_vitrenko [27]
Answer: 31/41

Explanation: You multiply the numerator and denominator across such as (2 and 8)= 16 and (3 and 5)= 15.

Once that done, you just calculate it together to get

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6 0
2 years ago
Sammy's Sandwich Shop has a mean delivery time of 25 minutes with a standard deviation of 2 minutes. Determine the z-score for t
fiasKO [112]

Answer:

 -1

Step-by-step explanation:

Given: Mean= 25 minutes.

           Standard deviation= 2 minutes

           x= 23 minutes.

Lets find the z-score for the number of sandwiches delivered in less than 23 mins.

Formula: Z-score= \frac{x-mean}{standard\ deviation}

Z-score= \frac{23-25}{2}

⇒ Z-score= \frac{-2}{2}

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Hence, -1 is the z-score for the number of sandwiches delivered in less than 23 minutes.

6 0
3 years ago
45 points to answer this question
Mrac [35]

if a = b and b = c, then a = c.

In this case if y = - 7 and -7 = z then y = z  .................>(y = a, -7 = b and z = c)

Answer:  B)

transitive property of equality




7 0
3 years ago
Solve for 50 points<br> x^(2)=100
Eddi Din [679]

x²=100

x²=10×10

x=10

hope it helps you

7 0
3 years ago
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