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Ray Of Light [21]
3 years ago
7

If a parabola has x-intercepts of 3 and -5, what is the equation of it’s axis of symmetry

Mathematics
1 answer:
ahrayia [7]3 years ago
3 0

Answer:

x = -1

Step-by-step explanation:

The x value of the axis of symmetry is precisely halfway between the two given x-intercepts:  -5 and 3 are 8 units apart.  Add half of 8 units, or 4 units, to -5, to obtain:

-5 + 4 = -1

The equation of the axis of symmetry is therefore x = -1.

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Julio bought tables and chairs for his restaurant. He bought 16 total items and spent $1800. Each table cost $150 and each chair
uysha [10]

Answer:

He bought 6 chairs and 10 tables.

Step-by-step explanation:

x+y = 16

he spent = $1800

1 chair = $50

y chairs = $50y

1 table = $150

x chairs = $150x

so, 150x+50y = 1800

we got two equations :

x+ y = 16

150x+50y = 1800

Using. substitution method,

x+y = 16

so, x = 16-y

Now

150x+50y =1800

or, 150(16-y) + 50y = 1800

or, 2400-150y+50y = 1800

or, 2400-1800 = 150y-50y

or, 600=100y

so, y = 6

now,

x+y = 16

or, x + 6 = 16

so, x = 10

4 0
2 years ago
Find the value of the variable and YZ if Y is between X and Z. XY= 11, YZ=4c, XZ=83
svet-max [94.6K]
So you know the whole line is XZ which is 83.Then you find out it is in two parts so that is XY and YZ which are 11 and 4c. You can make the equation:

11+4c=83
4c=72
c=18

c=18 and YZ=72

8 0
3 years ago
Read 2 more answers
Write the value of the underlined digit 7,270
RSB [31]

I am sorry but I do not see the underlined digit, but I will put it this way. 7 in the thousands place is worth 7000, 2 in the hundreds place is worth 200, 7 in the tens place is worth 70, and 0 in the ones place is worth 0.

Hope this helped!

Nate

3 0
4 years ago
Write 0.25 as a fraction
Anarel [89]
25/100 also 1/4
they are the same fraction, one of them is just simplified
4 0
2 years ago
How many TRIANGLES can you find? What other shapes did you find?
dolphi86 [110]

Answer:

50 triangles?

Step-by-step explanation:

gftjjbddhhbknhfdsdvnmmbghjbfd

4 0
3 years ago
Read 2 more answers
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