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kozerog [31]
3 years ago
6

What is the density of a 60-gram pyramid with rectangular base 5 cm x 7 cm and height 9 cm?

Mathematics
1 answer:
fredd [130]3 years ago
8 0

Answer:

A

Step-by-step explanation:

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What is the value of x in the equation 1.5(x + 4) – 3 = 4.5(x - 2)?
alisha [4.7K]

Answer:

The answer is x=4.

Step-by-step explanation:

Have a great day!

4 0
3 years ago
Sylvie finds the solution to the system of equations by graphing.
nikdorinn [45]

Answer:

C

Step-by-step explanation:

From the graph, it is clear that both lines intersect

at x=0 and y=2/3 or (0.667)

Therefore, the solution is: (x, y) = (0, 2/3) or (0, 0.667)

Step-by-step explanation:

Given the system of equations

y=2/3x+1 and y = -2/3 x-1

GRAH AND POINT OF INTERSECTION (SOLUTION)

The solution graph is attached below.

From the attached solution graph,

The red line is representing the equation y=2/3x+1

The blue line is representing the equation y = -2/3 x-1

From the graph, it is clear that both lines intersect

at x=0 and y=2/3 or (0.667)

Thus, the point of intersection is (x, y) = (0, 2/3) or (0, 0.667)

Therefore, the solution is: (x, y) = (0, 2/3) or (0, 0.667)

8 0
3 years ago
Marsha heard that 15% of her algebra class failed.If there were 20 students in the class, how many did not pass?
Strike441 [17]
3 students did not pass.
8 0
3 years ago
Read 2 more answers
Please answer ASAP!
Tcecarenko [31]

Answer:

-34.72

Step-by-step explanation:

a + b + c = -44.84

a= 24.6

24.6 + b + c = -44.84

Since b = c (given "the other numbers are equal to each other")

Substitute b into c, we have

24.6 + b + b = -44.84 (b+b is the equivalence of 2 x b)

24.6 + 2b = -44.84 (subtract 24.6 from both sides)

2b = -69.44 (divide 2 from both sides)

b= -34.72

Since b = c  (given "the other numbers are equal to each other")

c is also -34.72

8 0
4 years ago
If f(x) = 1/2x-14,then f^-1(x)=
Alik [6]

Answer:

f ^-1 (x) = 2x+28

Step-by-step explanation:

f(x) = 1/2x-14

Replace f(x) with y

y = 1/2 x -14

Exchange x and y

x = 1/2 y -14

Solve for y

Add 14 to each side

x+14 = 1/2 y -14+14

x+14 = 1/2 y

Multiply each side by 2

2(x+14)= 1/2 y*2

2x+28 = y

The inverse function is

f ^-1 (x) = 2x+28

4 0
3 years ago
Read 2 more answers
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