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2 years ago

I need help with this please.

Mathematics

1 answer:

Llana [10]2 years ago

3 0

I'm certain up until the reflection. after that there's some guess work just fyi

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X is directly proportional to the cube of y <br> when x=32 y=0.4 <br> find the value of y when x=256

Stella [2.4K]

Answer: 0.512

Step-by-step explanation:

256/32=8

8*(0.4)^3=

8*0.064=0.512

y=0.512

4 0

1 year ago

What is the total volume of this compound shape?

Alex787 [66]

Answer:

This is very easy. First find the volume of the cube, and then add it to the volume of the hemisphere to find the total volume.

The volume of the cube is length x width x height: 8 x 8 x 12 = 768 cm

The volume of the hemisphere is (2/3)πr³ : (2/3)π(4)³ = 134.04 cm

*Radius is 4

Now add: 768 + 134.04 = 902.04 cm

6 0

3 years ago

Suppose I rolled a fair six-sided die. Let R=number rolled. What is the sample space,

Mariana [72]

Answer:

No Side Is Being Favored Since The Die Is A Fair Six-Sided Die.

So Each Number Has The Same Chance Of Being Rolled.

6 0

2 years ago

A family has an annual income of $25,200. Of this, 1/4 is spent for food, 1/5 or housing, 1/10 for clothing, one ninth for

STatiana [176]

Simply divide $25,200 by 5
$25200 \div 5 = 5040$

$5,400 was spent on housing

6 0

3 years ago

Read 2 more answers

Write an equation of the line that is parallel to the line whose equation is 3y+7=2x and passes through point (2,6).

Sladkaya [172]

Answer:

Step-by-step explanation:

To find the equation of a parallel line, we first need to find the slope of 3y + 7 = 2x.

We need to find it because, if two lines are parallel, then that means they have the same slope.

The best way to do this is solve for y:

$3y+7=2x\\3y=2x-7\\y=\frac{2}{3}-\frac{7}{3}$

Due to the rule that in y = mx + b, m = the slope, we find that the slope is 2/3.

Now we use that slope in the same formula to find b of the line we're trying to find the equation for, and then we'll have our answer. We find b by plugging in (2, 6) for x and y:

$y = mx+b\\y=\frac{2}{3}x+b\\6=\frac{2}{3}(2)+b\\18=4+3b\\ 14=3b\\\frac{14}{3} = b$

So our line is:

$y=\frac{2}{3}x+\frac{14}{3}$

5 0

3 years ago