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3 years ago

12

Which expression is equivalent to (3x + 6) + 4x?

1 answer:

bixtya [17]3 years ago

4 0

B. 7x + 6

Combine like terms. The x terms go together, and nothing changes with the 6 in this expression.

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BartSMP [9]

A) $7x(-5)$

A multiplicação de um numero positivo por um numero negativo resulta em um numero negativo: $(+) x (-)=(-)$

$(7x5)$

Multiplique os valores

$-35$

resposta para A: $-35$

B) $(-9)x(-8)$

A multiplicação dois números negativos resulta em um numero positivo : $(-)x(-)=(+)$

$9 x 8$

Multiplique os valores

$72$

Resposta para B : $72$

C) $(-15) : 5$

A divisão de um numero negativo por um positivo resulta em um numero negativo: $(-):(+)=(-)$

$-(15:5)$

Divida os números

$-3$

Resposta para C: $-3$

D) $125 : 25$

Divida os números

$5$

Resposta para D: $5$

POR FAVOR ME MARCA BRAINLIEST

5 0

2 years ago

How do you write 652% as a fraction, mixed number, or whole number?

scoray [572]

652 whole number :)

3 0

2 years ago

My Notes The displacement from equilibrium of an oscillating weight suspended by a spring is given by y(t) = 1 4 cos(5t) where y

ikadub [295]

Answer:

y(0) = 0.25 feet

$y(\frac{1}{4}) = 0.0789 \text{ feet}$

$y(\frac{1}{2}) =-0.2003 \text{ feet}$

Step-by-step explanation:

We are given the following information in the question:

The displacement from equilibrium of an oscillating weight suspended by a spring =

$y(t) = \displaystyle\frac{1}{4} \cos(5t)$

where y is the displacement in feet and t is the time in seconds.

Here, cos is in radians.

1) t = 0

$y(0) = \displaystyle\frac{1}{4} \cos(5(0)) = \frac{1}{4} \cos(0) = \frac{1}{4}(1) = \frac{1}{4}$

y(0) = 0.25 feet

2) t = $\frac{1}{4}$

$y(\displaystyle\frac{1}{4}) = \displaystyle\frac{1}{4} \cos(5(\frac{1}{4})) = \frac{1}{4} \cos(1.25) = \frac{1}{4}(0.31532236) =0.07883059$

$y(\frac{1}{4}) = 0.0789 \text{ feet}$

3) t = $\frac{1}{2}$

$y(\displaystyle\frac{1}{2}) = \displaystyle\frac{1}{4} \cos(5(\frac{1}{2})) = \frac{1}{4} \cos(2.5) = \frac{1}{4}(-0.80114362) = -0.200285905$

$y(\frac{1}{2}) =-0.2003 \text{ feet}$

The negative sign indicates the opposite direction of displacement.

3 0

3 years ago

Giving all my points

Dominik [7]

The answer is $2.50 because you do 145-132.50=12.5
Then you divide by 5 because that’s the difference between students then the final answer is 2.50

4 0

3 years ago

s344n2d4d5 [400]

Answer:

154

Step-by-step explanation:

86.192 and 68.36 rounded up to the nearest whole is 86 plus 68 would be 154

4 0

3 years ago