3 years ago

Howard solved 6 math problems in 16 minutes.

Mathematics

1 answer:

Firlakuza [10]3 years ago

7 0

Answer:

6/16=0,375

0,375*30=11,25

You might be interested in

2/3 divided by 1/2 please I really need this!!

olganol [36]

Answer:

1 1/3

Step-by-step explanation:

2/3 x 2/1 = 4/3 = 1 1/3

5 0

3 years ago

Read 2 more answers

Compute the probability of flipping a coin once and getting heads, given that the previous flip was tails.

ra1l [238]

Answer:

the probability to flip a head is 50%

Step-by-step explanation:

I think.

5 0

3 years ago

Please help me marking brainlist please explain how u got the answer

ss7ja [257]

Answer
v=-35

explanation
add -4 and -31 to get v which is -35

5 0

3 years ago

Bruce has a bottle with 60% lemon juice and the rest water.

Dimas [21]

The percent of water would be 40%

3 0

3 years ago

Derive the equation of the parabola with a focus at (0, −4) and a directrix of y = 4.

CaHeK987 [17]

Answer:

$y=-\frac{1}{16} x^2$

Step-by-step explanation:

Equation of parabola with focus at (0,-4) and directrix is $y=4$ .

We know that parabola is the locus of all the points such that the distance from fixed point on the parabola to fixed line directrix is the same.

The parabola is opening downwards.

Let any point on parabola is (x,y).

Distance from focus(0,-4) to (x,y) = $\sqrt{(x-0)^2+(y-(-4))^2}=|y-4|$

$\sqrt{(x-0)^2+(y-+4)^2}=|y-4|$

$(x-0)^2+(y+4)^2=(y-4)^2$

$(x)^2+(y+4)^2=(y-4)^2$

$x^2+(y^2+4y+4y+16)=y^2-4y-4y+16$

$x^2+y^2+8y+16=y^2-8y+16$

$x^2+16y^2=0$

$16y=-x^2$

$y=-\frac{1}{16} x^2$

6 0

2 years ago