3 years ago

12=a+5b solve for a. I think the answer is 12-5b=a but that's probably wrong

Mathematics

1 answer:

pychu [463]3 years ago

7 0

YOU ARE RIGHT! SO DON'T SWEAT!

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Determine if the function f(x) = 4√x − 3x satisfies the Mean Value Theorem on [4, 49]. If so, find all numbers c on the interval

Vedmedyk [2.9K]

Answer:

Step-by-step explanation:

The mean value theorem states that for a continuous and differentiable function on a interval there exists a number c from that interval, that

$f'(c)=(f(b)-f(a))/(b-a)$

First we must determine the endpoints:

$f(49)=-119$

$f(4)=-4$

We find the derivative of the function, f'(c)

$f'(c)=3+2\sqrt{c}$

Therefore:

$3+2\sqrt{c}=((-119)-(-4))/((49)-(4))$

Simplify:

$3+2\sqrt{c}=-23/9$

$c=81/4$

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3 years ago

1. Simplify 3(2x + 5)<br> 6x + 30<br> 0 6x +15<br> 16x + 5

inysia [295]

Answer:

6x+15

Step-by-step explanation:

3×2x + 3×5. use the distributive property of multiplication

4 0

2 years ago

here is an inequality 2x + 5 > 50 explain the steps you would use to solve the equation for x what would the graph look like

Hatshy [7]

Answer:

$x>22.5$

Step-by-step explanation:

Given linear inequality:

$2x+5>50$

Solving for $x$

Subtracting both sides by 5.

$2x+5-5>50-5$

$2x>45$

Dividing both sides by 2.

$\frac{2x}{2}>\frac{45}{2}$

∴ $x>22.5$

The graph of the inequality is shown below.

The line is represented by dotted line because the inequality sign is only greater than which means 22.5 is not included in the solution.

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3 years ago

In the diagram, which pair of angles are corresponding angles?

lora16 [44]

C. 3 and 7 because corresponding angles are congruent when an transversal intersects the line

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2 years ago

A dress cost $63. If the store is having a 20% off sale, how much does the dress cost now? ( the answer is $50.40 but I need to

slega [8]

Answer:

$50.40

Step-by-step explanation:

Make an equation:

20%

------ = -------

63 100%

63 x 20= 1,260
1,260/100=12.6
63 - 12.6 = 50.40

6 0

2 years ago