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2 years ago

PLS PLS PLS HELP Honors 9th Grade Math!!!!

Mathematics

1 answer:

netineya [11]2 years ago

3 0

Answer:

21=x ( alternate angles are equal)

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Evaluate the expression if m = −4, n = 1, p = 2, q = −6, r = 5, and t = −2. |12+2t|

ella [17]

Answer:

Step-by-step explanation:

it goes to 12-8 which equals 8

6 0

2 years ago

Read 2 more answers

BRAINIEST + THANK YOU + 5 STARS IF CORRECT

hammer [34]

Answer:

The answer would be that this graph is NOT a proportional relationship.

La respuesta sería que este gráfico NO es una relación proporcional.

Step-by-step explanation:

The reason why this graph makes no relationship is because a relationship needs to be constantly equivalent to the past fraction. But would 2 be equal to 5 and 4 be equal to 10? Nope, that is why it is not a proportional relationship.

La razón por la cual este gráfico no tiene relación es porque una relación debe ser constantemente equivalente a la fracción pasada. ¿Pero sería 2 igual a 5 y 4 igual a 10? No, por eso no es una relación proporcional.

5 0

3 years ago

Part 1 out of 2

PolarNik [594]

Answer:

The expression is 6v² + 6v - 120

Step-by-step explanation:

v = Car's speed

Let's write the expression for 6 times the square of a car's speed plus 6 times the car's speed minus 120, this way:

6v² = 6 times the square of a car's speed

6v - 120 = 6 times the car's speed minus 120

Now, let's add the operator (+):

6v² (6 times the square of a car's speed) + 6v - 120 (6 times the car's speed minus 120)

The expression is 6v² + 6v - 120

3 0

3 years ago

4 15/16 as a decimal

crimeas [40]

Hey there, 15/16 as a decimal is 0.9375, and all you do is add the 4 to 0.9375 and the decimal will become 4.9375. Therefore, 4 15/16 as a decimal is 4.9375

8 0

2 years ago

An inverted pyramid is being filled with water at a constant rate of 25 cubic centimeters per second. The pyramid, at the top, h

scoundrel [369]

Answer:

When the water level is 3 cm, the rate at which the water level is rising is 30.86 cm/s.

Step-by-step explanation:

We first have to relate the height H of the pyramid with the volume V.

The volume of the pyramid is V=Sh/3, being S: area of the base square, and h: height of the pyramid.

The base is changing as the pyramid is filled with water.

Then, the volume for every height is:

$V(t)=[L(t)]^2h(t)/3$

The side of the square will grow linearly with the height. They start at H=0 and L=0 at the bottom of the pyramid, and they end at H=10 and L=3.

So we have:

$L=(3/10)h=0.3h$

If we replace in the volume equation we have:

$V=L^2h/3=(0.3h)^2h/3=0.09h^3/3=0.03h^3$

We know that the rate of variation of the volume in time is contant and equal to 25 cm3:

$dV/dt=25$

We can derive the volume equation to calculate the variation of h in time:

$dV/dt=3(0.03)h^2*(dh/dt)=0.09h^2*(dh/dt)=25\\\\dh/dt=(25/0.09)h^{-2}=278h^{-2}$

The rate of variation of the height in time is dh/dt=278h^(-2). The units are cm/s.

When the water level is 3 cm, the rate at which the water level is rising is:

$h=3\\\\dh/dt=278*3^{-2}=278*(1/9)=30.86$

7 0

3 years ago