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Alborosie
3 years ago
13

What are the coordinates of the focus of the parabola shown below?

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
8 0
The coordinates are (-4,0),(0,-1)
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Suppose f varies directly as g, and f varies inversely as h. Find g when f = 12 and h = 10, if g = 198 when h = –11 and f = –6.
sattari [20]

Answer:

360

Step-by-step explanation:

f varies directly as g

f = kg  where k is the constant of variation

f varies inversely as h

f = kg/h

We know g = 198 when  h = –11 and f = –6.  Substituting in

-6 = k*198/(-11)

-6 =k*(-18)

Dividing each side by -18

-6/-18 = k*-18/-18

1/3 =k

Our equation is

f = 1/3 g/h

Letting  f = 12 and h = 10

12 = 1/3 g/10

Multiply each side by 10

12*10 =1/3 g/10*10

120 = 1/3 g

Multiply each side by 3

120*3 =1/3 g *3

360 =g

5 0
3 years ago
Can somebody help me on number 2 or 3? Please explain as well. HELP ASAP :)
harina [27]
What grade a you in?
7 0
3 years ago
If 79.5% of married couple households are both native and 13.2% are both foreign, then (a) what percentage of married couple hou
Zanzabum

Answer:

The correct solution is "7.3%".

Step-by-step explanation:

It seems that the given question is incomplete. Find below the attachment of the complete and appropriate query.

According to the question,

The total married couples are,

= 55,550,000

where,

Both native = 79.5%

Both foreign = 13.2%

Now,

The percentage of couple that is one native as well as one foreign will be:

= 100-79.5-13.2

= 7.3 (%)

7 0
3 years ago
PLEASE HELP ME !!!!!!!!!!
jasenka [17]

Answer:

The load weight is 2.29 N

Step-by-step explanation:

We note that  at equilibrium, the sum of the moment and the sum of forces about a point is zero, therefore, we have;

∑M =0

∑F = 0

The parameters given are;

The distance of the load from the hinge = 35 cm

The distance of the load from the spring balance = 15 cm

The applied force on the spring balance = 4 N↑

The direction of the applied force on the spring balance = Upwards

Let the weight of the load = W↓

The direction of the weight of the load = Downwards

We use downward negative and upward positive coefficients for the forces

We take moment about the hinge as follows;

Sum of moments equals zero gives;

4 × (35 - 15) - W × 35 = 0

∴ 4 × (35 - 15) = W × 35

4 × 20 = W × 35

W = 4 × 20/35 = 2.29 N

The weight of the load = 2.29 N.

5 0
3 years ago
Write the equation of the line that passes through the points (6,3) and (-7,9). Put
natka813 [3]

Answer:

Step-by-step explanation:

slope=(9-3)/(-7-6)=-6/13

reqd eq. of line is

y-3=-6/13(x-6)

5 0
3 years ago
Read 2 more answers
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