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3 years ago

Simplify (x + 3) - 2(4 + x) + 5x - 4

Mathematics

2 answers:

Radda [10]3 years ago

6 0

Answer:

Hello There!

`~~~~~~~~~~~~~~~~~~~~~

(x + 3) - 2(4 + x) + 5x - 4 =

4x - 9

Step-by-step explanation: Simplify the expression.

Hope this helped you. Brainliest would be nice!

Aneli [31]3 years ago

3 0

Answer:

4x -9

Step-by-step explanation:

First, expand it by multiplying (x+4) with -2.

(x + 3) - 2(4 + x) + 5x - 4

= x + 3 - 8 - 2x + 5x - 4

Then, collect like terms. Add up the coefficient of x, and the whole numbers separately.

= x - 2x +5x + 3 -8 -4

= 4x -9

When nothing can further be simplified, you get the answer.

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Solve the system of linear equations.

RoseWind [281]

Answer:

1. No solution

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Step-by-step explanation:

1. To solve the system, set the equations equal to each other and solve for x.

2x - 5 = 2x + 7

-5 = 7

This is a false statement. This means there is no solution.

2. To solve the system, graph each equation.

y = -3/4 x - 5/2 has a y-intercept -5/2 and slope -3/4.

3x + 4y = -10 converts to y = -3/4x -5/2.

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3 years ago

Money that is collecting interest in a bank account doubles in value every 10 years.

MArishka [77]

C . 2 to the power of 9

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3 years ago

The tuft bind strength of a synthetic material used to make carpets is known to have a mean of 100 lb and standard deviation of

emmasim [6.3K]

Answer:

The null hypothesis is: $H_{0}: \mu = 100$

The alternative hypothesis is: $H_{a}: \mu > 100$

Step-by-step explanation:

At the null hypothesis, we test if the mean is equal to a certain value.

At the alternate hypothesis, we test if the mean is less than, more than, or different from the value tested at the null hypothesis.

The tuft bind strength of a synthetic material used to make carpets is known to have a mean of 100 lb and standard deviation of 20 lb.

This means that the null hypothesis is: $H_{0}: \mu = 100$

Could it be that the average tuft strength is above 100 lb?

The world above means that the appropriate alternative hypothesis is: $H_{a}: \mu > 100$

3 0

3 years ago

Una fuente circular tiene un diámetro de 80 pulgadas conciderando que una pulgada equivale a 2.54cm cual es la medida de su rati

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Answer:

203.2cm

Step-by-step explanation:

De la pregunta anterior,

1 pulgada = 2.54 cm

80 pulgadas = x

Multiplicar cruzada

x = 80 × 2.54 cm

x = 203.2 centímetros

La medida de su relación es 203.2cm.

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3 years ago

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Answer:

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Step-by-step explanation:

Have a good day.

5 0

2 years ago