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Ber [7]
3 years ago
10

4. What are the values of x and y?

Mathematics
1 answer:
docker41 [41]3 years ago
5 0
Asked and answered elsewhere.
brainly.com/question/8861591
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Bob is on the school swim team and has practice 4 days per week. He has to practice twice per day, in the morning and in the eve
mylen [45]

Answer:

1h every morning

Step-by-step explanation:

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2 years ago
PLEASE HELP ME IM BEGGING U THIS IS URGENT, PLEASE ASAP, NO NEED TO EXPLAIN JUST ANSWER PPLZZZZZZ
statuscvo [17]
25% of something is 5000000, so total is 4*5000000 = 20 million
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3 years ago
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How many tens are in the number 1,384
Andre45 [30]
There are 8 tens in the number 1,384.

Each digit in the number has an equivalent value based on its placement in the number.

1,384 where:

1 is in the thousands value
3 is in the hundreds value
8 is in the tens value
4 is in the ones value

The extended form of 1,384 is:

1 x 1000 + 3 x 100 + 8 x 10 + 4 x 1 = 1,384

1,000 + 300 + 80 + 4 = 1,384

8 x 10 = 80 ; shows that there are 8 10s in the number with a product of 80.
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3 years ago
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3. Find the Area of the circle:
gavmur [86]
The area of the circle is 28.26 sq in hope this helps
5 0
3 years ago
Which equation represents a parabola opening to the right with a vertex at the origin and focus at (9,0) A. X = - 1/36y^2 B. X =
Virty [35]

Answer:

Option C: x = (1/36)*y^2

Step-by-step explanation:

A horizontal parabola is written as

x = f(y) =  a*y^2 + b*y + c

If a is positive, the parabola opens to the right.

if a is negative, the parabola opens to the left.

And the vertex of the parabola has the y-value:

y = -b/2a

and the x value

x = f(-b/2a)

For our parabola, we know that:

Opens to the right:

Then the only options left are:

C) x = (1/36)*y^2

D) x = (1/6)*y^2

Because in both cases b = 0, both of the equations have the vertex in the point (0, 0).

Now let's see wich one has a focus at (9, 0)

If the vertex of our equation is:

(h, k)

Then the focus will be:

(h + a, k)

Where a is the directrix of the equation.

Here we know that the vertex is (0, 0) and the focus is (9, 0)

Then:

(0 + a, 0) = (9, 0)

The directrix is 9.

And the directrix is such that:

(x - h)^2 = 4*a*(y - k)

Replacing the values of h and k (both are zero) we get:

x^2 = 4*a*y

And we know that: a = 9

x^2 = 4*9*y

x^2 = 36*y

if we isolate y, we get:

(1/36)*x^2 = y

This is option C.

Then the correct option is C.  

8 0
2 years ago
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