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ValentinkaMS [17]
4 years ago
10

what is the volume of a piece of coal with the shape of square pyramid with base of 8.2 in on each sides and height of 5.3 in

Mathematics
1 answer:
aliina [53]4 years ago
6 0
The volume of the coal is 43.46
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Solve each of the following inequalities for x. a. 3+x>8
Leni [432]

Answer:

x > 5

Step-by-step explanation:

3+x>8

Subtract 3 from each side

3-3+x>8-3

x > 5

6 0
4 years ago
if ABC is a isosceles triangle with sides(2a+b)cm, (6a+2b+1)cm and a base of 4a cm, if it's perimeter is 28 find sides​
Katyanochek1 [597]

Answer:

a=1.5, b= 3

Step-by-step explanation:

sum of all sides will give us perimeter. Therefore

2a+b+6a+2b+1+4a=28

12a+3b+1=28

12a+3b=27....eqn1

since t two sides of this isosceles triangle are equal:

2a+b=4a

2a=b

a=\frac{b}{2}

substituting \frac{b}{2}. in the first equation whenever we encounter a we will have:

12(\frac{b}{2})+3b=27\\

6b+3b=27

9b=27

b=3

therefore a= \frac{b}{2} =\frac{3}{2} =1\frac{1}{2}  or 1.5

7 0
2 years ago
The total weight of a box cannot exceed 17 pounds so far she has packed 3 1/4 pictures two books weighing 1 3/4 pounds and a jac
tatuchka [14]
You can pack up to 10 1/5 pounds more stuff without going over
8 0
4 years ago
Use the graph of the function f(x) - (x + 1)2 + 2. Identify the vertex and<br> the axis of symmetry.
sweet-ann [11.9K]

Answer:

Step-by-step explanation:Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Up

Vertex:

(

1

,

−

2

)

Focus:

(

1

,

−

7

4

)

Axis of Symmetry:

x

=

1

Directrix:

y

=

−

9

4

x

y

−

1

2

0

−

1

1

−

2

2

−

1

3

2

Tap to view steps...

image of graph

Tap to hide graph...

()

7 0
3 years ago
Read 2 more answers
Which points are a distance of 5 units from (2, 3) if d = square root (x2 - x1)2 + (y2 - y1)?
qwelly [4]

Answer:

Step-by-step explanation:

hello :

note :

note : distance between A(X1,Y1) an B (X2,Y2) is :  

AB= √((X2 - X1)² + (Y2 - Y1)²)    (given point  B(2 , 3)

in this exercice : X1 = 2     X2 = ?      Y1 = 3      Y2 = ?   d=AB=5

d² = (X2 - 2)² + (Y2 - 3)² =25

the points are a distance of 5 units from B (2, 3) if d = 5 :

the points are located on a circle with center B and radius 5

8 0
3 years ago
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