All categories

3 years ago

Pls help I’ll brainlest and add extra points

Mathematics

1 answer:

ycow [4]3 years ago

7 0

Answer:

1) B 1/4

2) C 36

3) C 4

Step-by-step explanation:

1) 1/2 chance for tails on both the first and second flips

1/2•1/2 = 1/4

2) 8/10 marbles are white.

as the marble is always replaced, the chances never change.

0.8(45) = 36

3) there are 6 sides to a cube but only one even number less than four (2), so the chances are 1/6

1/6•24 = 4

You might be interested in

The graph shows f(x) = (x - 5)2. What is the value of h?<br> h=

pav-90 [236]

Answer:

-5

Step-by-step explanation:

H is the value that is being added or subtracted from x in the equation

f(x)=a(x-h)^2 +k

4 0

3 years ago

Read 2 more answers

The position of an object moving along an x axis is given by x = 3.24 t - 4.20 t2 + 1.07 t3, where x is in meters and t in secon

Pavel [41]

Answer and explanation:

Given : The position of an object moving along an x axis is given by $x=3.24t-4.20t^2+1.07t^3$ where x is in meters and t in seconds.

To find : The position of the object at the following values of t :

a) At t= 1 s

$x(t)=3.24t-4.20t^2+1.07t^3$

$x(1)=3.24(1)-4.20(1)^2+1.07(1)^3$

$x(1)=3.24-4.20+1.07$

$x(1)=0.11$

b) At t= 2 s

$x(t)=3.24t-4.20t^2+1.07t^3$

$x(2)=3.24(2)-4.20(2)^2+1.07(2)^3$

$x(2)=6.48-16.8+8.56$

$x(2)=-1.76$

c) At t= 3 s

$x(t)=3.24t-4.20t^2+1.07t^3$

$x(3)=3.24(3)-4.20(3)^2+1.07(3)^3$

$x(3)=9.72-37.8+28.89$

$x(3)=0.81$

d) At t= 4 s

$x(t)=3.24t-4.20t^2+1.07t^3$

$x(4)=3.24(4)-4.20(4)^2+1.07(4)^3$

$x(4)=12.96-67.2+68.48$

$x(4)=14.24$

(e) What is the object's displacement between t = 0 and t = 4 s?

At t=0, x(0)=0

At t=4, x(4)=14.24

The displacement is given by,

$\triangle x=x(4)-x(0)$

$\triangle x=14.24-0$

$\triangle x=14.24$

(f) What is its average velocity from t = 2 s to t = 4 s?

At t=2, x(2)=-1.76

At t=4, x(4)=14.24

The average velocity is given by,

$\triangle x=x(4)-x(2)$

$\triangle x=14.24-(-1.76)$

$\triangle x=14.24+1.76$

$\triangle x=16$

4 0

3 years ago

The Knight of Dishonor wants to attack the castle and decides that he should make a long ladder that will reach across the moat

RSB [31]

How long is the wall or the moat?

8 0

3 years ago

Move each shape to the box that shows the correct number of lines of symmetry.

Marrrta [24]

Answer:

You have box 0 correct. The arrow goes in box 1. The square goes in box 4. And the rectangle goes in box 2.

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

What is the slope of a line perpendicular to the line whose equation is x−2y=12.

seraphim [82]

Answer:

-2/x

Step-by-step explanation:

simplified is y = -x/2 - 6

Perpendicular slopes are just reciprocals of the original slope, so just flipp the original slope around to be the complete opposite.

Example if slope= -2, the reciprocal= -1/2

Just flip the numerator with the denominator for perpendicular slope

6 0

3 years ago