3 years ago

Find an equation of the parabola with vertex (2, -1) and directrix y=-7.

Mathematics

1 answer:

Brums [2.3K]3 years ago

7 0

Answer:

the answer to this is y=7x-15

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Add the following two numbers in scientific notation.

strojnjashka [21]

Answer:

3.31 x 10^4

Step-by-step explanation:

3.111 x 10^4 is 31110

2 x 10^3 is 2000

31110 + 2000 = 33100 or 3.31 x 10^4

4 0

1 year ago

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JK and LM are straight lines. Find /NOK.<br> ( help me pls)<br>

VashaNatasha [74]

Answer:

$NOK = 58$

Step-by-step explanation:

Given

$JOM = 108$

$LON = 50$

Required

Find NOK

From the attached triangle, we have:

$LOK = JOM =108$ --- Corresponding angles

And

$LOK = LON + NOK$

Substitute for LOK and LON

$108= 50+ NOK$

Make NOK the subject

$NOK = 108 - 50$

$NOK = 58$

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3 years ago

Devaughn's age is three times Sydney's age. The sum of their ages is 80. What is Sydney's age?

Gekata [30.6K]

U times any number by 3 and see witch ones the closest
27x3=81 that's what I think and that's the closest

6 0

3 years ago

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4(c+12)=2c+18 what is c=?

Elanso [62]

4(c+12)=2c+18
4c+12c=2c+18
4c-2c=18-48
2c=-30
c= -30/2
c= -15

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3 years ago

Which number sentence is true?

statuscvo [17]

The answer would be D

3 0

2 years ago