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Sergio [31]
3 years ago
5

Simplify (3x2 - 5x + 3) + (-3x2 + 5x - 3).

Mathematics
2 answers:
Mars2501 [29]3 years ago
6 0

Answer:

0

Step-by-step explanation:

3x2 - 3x2 = 0

-5x + 5x = 0

3 - 3 = 0

zepelin [54]3 years ago
4 0

Answer:

(9 -5x) + (-9 +5x)

Step-by-step explanation:

-Three times two is six plus three is nine

-Negative three times two is negative six minus three which is negative nine

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What is the answer to 10m + 7=-7m +-11
den301095 [7]
Just simplify?
Than your answer should be m=- \frac{18}{17}
5 0
3 years ago
Read 2 more answers
A sheet metal manufacturer is making 10-gauge sheet metal, which is supposed to be 3.416 mm thick. One of the pieces of manufact
satela [25.4K]

Answer:

Step-by-step explanation:

We need to evaluate if thickness of a 10 gauge metal sheet is a requiered in the process that means   3.416 mm thick. So that should be our null hypothesis;  μ₀ = 3.416    and based on sample data, we will formulate an alternative hypothesis taking into account the mean, and standard deviation obtained. We surely will have better  information to take a decision

4 0
3 years ago
Can someone please explain?
geniusboy [140]

This is an isosceles triangle. The angles at the base are congruent (they have the same measures).

Look at the picture.

We know: The sum of the measures of angles in a triangle is equal 180°.

Therefore we have the equation:

2x-10+2x-10+3x+25=180       <em>combine like terms</em>

(2x+2x+3x)+(-10-10+25)=180

7x+5=180           <em>subtract 5 from both sides</em>

7x=175              <em>divide both sides by 7</em>

x=25

m\angle A=2x-10\to m\angle A=2(25)-10=50-10=40\\\\m\angle C=m\angle A=40\\\\m\angle B=3x+25\to m\angle B=3(25)+25=75+25=100^o

<h3>Answer: D. m∠C = 40</h3>

6 0
2 years ago
Judging by appearance, name an obtuse angle, an acute angle, and a right angle.
xxTIMURxx [149]

Answer:

A.) Angle R, Angle S, Angle T

Step-by-step explanation:

It's a because it asked in order for an obtuse, an acute, and right. So in order it's R (for obtuse), S (for acute), and T (for right)

6 0
3 years ago
3. if you want to represent geologic time with a 24-hour clock, how many years would be represented by a single second, minute a
Amanda [17]

In geologic time scale a single second = 52,083.3 years, a minute = 3,125,000 years, an hour = 187.5 million years

Geologic time, the extensive interval of time occupied by the geologic history of Earth. Formal geologic time begins at the start of the Archean Eon (4.0 billion to 2.5 billion years ago) and continues to the present day.

So the geologic time scale (GTS) contains different ranks of times about Earth, obviously you know this already. However, the GTS has these different ranks in order from shortest length of time to longest length of time.

The Earth is about 4.5 billion years old. We want to convert this geological time in a period of 24 hours. So, if 24 hours correspond to 4.5 billion years, then, 1 Hour= 4.5 billion / 24=187.5 million years. There are 60 minutes in an hour ∴ 1 minute =187.5 million /60=3,125,000 years finally, one second has 60 seconds ∴ 1 second=3,125,000 / 60 = 52,083.3 year.

learn more about geologic time here:

brainly.com/question/22502144

#SPJ4

4 0
2 years ago
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