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3 years ago

Choose the correct simplification of (7x3 − 8x − 5) + (3x3 + 7x + 1).

Mathematics

2 answers:

Travka [436]3 years ago

8 0

the correct simplification of (7x^3 − 8x − 5) + (3x^3 + 7x + 1),

Is 10x^3 − x − 4

Ganezh [65]3 years ago

4 0

10x3 − x − 4 is the correct answer to your question

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Solve the literal equation 5a + 10b = 2b - 4a for a.

UkoKoshka [18]

Answer:

A=-8b/9

Step-by-step explanation:

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3 years ago

Choose the graph which represents the solution to the inequality: 3x + 8 ≥ 11

Mashutka [201]

The solution of the inequality is x ≥ 1.

Solution:

Given inequality:

$3 x+8 \geq 11$

To find the solution of the inequality:

$3 x+8 \geq 11$

Subtract 8 from both sides.

$3 x+8-8 \geq 11-8$

$3 x \geq 3$

Divide by 3 on both sides.

$$\frac{3 x}{3} \geq \frac{3}{3}$

On simplifying this, we get

$x \geq 1$

The solution of the inequality is x ≥ 1.

The graph of the solution is attached below.

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2 years ago

Solve the system using elimination. 2x + 3y = 17 x + 5y = 19

ale4655 [162]

$\left\{\begin{array}{ccc}2x+3y=17\\x+5y=19&|\text{multiply both sides by (-2)}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}2x+3y=17\\-2x-10y=-38\end{array}\right}\qquad\text{add both sides of equations}\\.\qquad\qquad-7y=-21\qquad\text{divide both sides by (-7)}\\.\qquad\qquad \boxed{y=3}\\\\\\\text{Substitute the value of y to the second equation}\\\\x+5(3)=19\\\\x=15=19\qquad\text{subtract 15 from both sides}\\\\\boxed{x=4}\\\\Answer:\ x=4\ and\ y=3.$

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2 years ago

Sammy plans to build a kite He has two rods of lengths 4 feet and 3 feet Find the area of the material he will need to cover the

Vitek1552 [10]

The answer would be D: 12 ft2

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1 year ago

The total temperature measured by 4 thermometers was −16 degrees Fahrenheit. What was the average temperature measured by the 4

Lana71 [14]

Answer:

Step-by-step explanation:

Well average means mean so we have to find the mean of the numbers in the data set. Our numbers are -12,12,-4, and finally 4. When we add all of them up we get 0 and we have to divide 0 by the 4 thermoters and your answer is 0. if this is confusing just leave a comment and ill try to explain better

7 0

3 years ago

Read 2 more answers