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3 years ago

Simplify 3(x+2)-9x+5

Mathematics

2 answers:

Nimfa-mama [501]3 years ago

6 0

It would be...
-6x+11

kykrilka [37]3 years ago

5 0

Answer:

The simplified form of the provided expression is $11-6x$ .

Step-by-step explanation:

Consider the provided expression.

$3(x+2)-9x+5$

Use the distributive property:

$a(b+c)=ab+ac$

By using the above property we can simplify it as shown:

$3x+6-9x+5$

Add and subtract the like terms.

$3x-9x+6+5$

$11-6x$

Thus, the simplified form of the provided expression is $11-6x$ .

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3 years ago

Carlos has taken an initial dose of a prescription medication.

Marat540 [252]

Answer:

3.48 hours

Step-by-step explanation:

The equation is:

$M(t)=20 e^{-0.86t}$

Where

M(t) is the amount of medication remaining in mg

t is the time it takes, in hours

The questions asks HOW LONG it will take to make the remaining medication to 1 milligrams (1 mg)??

We have to substitute M(t) with "1" and find the corresponding value of "t". We will use natural log to solve this. Shown below:

$M(t)=20e^{-0.86t}\\1=20e^{-0.86t}\\0.05=e^{-0.86t}\\Ln(0.05)=Ln(e^{-0.86t})\\Ln(0.05)=(-0.86t)Ln(e)\\t=\frac{Ln(0.05)}{-0.86}\\t=3.48$

<u>Note: </u> Ln(e) = 1

This means, the amount of time it will take is about 3.48 hours

8 0

3 years ago

The chapter is 8pages long. kosta read 1/4 of the chapter aloud.then christina read three pages to the class. How many pages hav

pshichka [43]

Number of pages that the chapter has = 8
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3 years ago

Juan is making a model out of rhombi. Each rhombus will be connected to the one before it. Each rhombus will be 6 inches tall an

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Refer to figure.

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Now,

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Hence, 12 sq. inches of Paper is needed for each rhombus.

Learn more about the "Finding the area of the rhombus" Here : brainly.com/question/10684261

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2 years ago

Read 2 more answers

When the points below are connected, they will form triangle ABC. Show and state whether this triangle has a right angle or not.

cluponka [151]

Answer:

See explanartions below

Step-by-step explanation:

Given the coordinates A(-6,3) B(0,5) C(2,-1)

We first need to get the slope of AB, BC and AC

For AB;

A(-6,3) B(0,5)

Mab = 5-3/0-(-6)

Mab = 2/6

Mab = 1/3

For BC;

B(0,5) C(2,-1)

Mbc = -1-5/2-0

Mbc = -6/2

Mc = -3

For AC:

A(-6,3) C(2,-1)

Mac = -1-3/2-(-6)

MAc = -4/8

Mac = -1/2

Taking the product of Mab and Mbc

Mab * Mbc = 1/3 + -3

Mab * Mbc = -1

<em>Since the product of Mab and Mbc is -1, hence AB abd BC are perpendicular showing that one of the angle of triangle ABC is 90 degrees</em>

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3 years ago