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pishuonlain [190]
3 years ago
11

Simplify this, include instructions

Mathematics
2 answers:
monitta3 years ago
7 0
3n-2n = 1n
1+8 = 9
1n + 9
Cerrena [4.2K]3 years ago
5 0
<span><span><span>3n</span>+1</span>−<span>2n</span></span>+<span>8

</span><span>Combine Like Terms:
</span>
<span><span><span>3n</span>+1</span>+<span>−<span>2n</span></span></span>+<span>8
</span>(3n+−2n)+(1+8)
=<span>n+<span>9
</span></span>
Answer is n+9


Hope I helped

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Please help I’m honestly gonna cry lol
BARSIC [14]

Answer: 2z-15

Step-by-step explanation

Based on the visual image, AD is a line where a point O intersects somewhere on the line. AD is represented as 3z-11, while the segment from AO is represented as z+4.

In order to find the answer, we must subtract the entire line (AD) from AO in order to find the missing segment OD.

AD    -  AO   = OD

(3z-11) -  (z+4) = OD

Distribute the negative sign so it becomes:

(3z-11) -z - 4 = OD

Now combine like terms.

(3z-z) +(- 11 -4)= OD

2z - 15 = OD

And that is your answer!

6 0
2 years ago
A box contains 3 plain pencils and 7 pens . A second box contains 4 colored pencils and 4 crayons . One item from each box is ch
strojnjashka [21]

Answer:

its 6 bc 7+3=10 4*4=16 16-10=6

6 0
3 years ago
One kitten weighs 2 lbs 4 oz. Another kitten weighs 2 oz less. What is the combined weight of the two kittens in oz?
EastWind [94]

Answer:

70 oz

Step-by-step explanation:

You know that one kitten weighs 2 lbs 4 oz. and the other ways 2 lbs 2 oz all you need to do is add that together to get 4 lbs 6 oz then convert that into lbs (1 lbs = 16 oz)

In total the 4 lbs gets you 64 oz, then you just need to add the 6 remaining oz to get 70 lbs!

6 0
3 years ago
Read 2 more answers
A researcher is planning to compare the effects of two different types of lights on the growth of bean plants. She expects that
kicyunya [14]

Answer:

The sample size is  n  = 36

Step-by-step explanation:

From the question we are told that

   The sample standard deviation is  s =  1.5

  The mean difference of the two groups is  \=x _ 1 - \=x_2 =  1

   The standard error is  SE =  \frac{ \= x_1 - \= x_2}{4}

=>                                      SE =  \frac{1}{4}

Let assume that the confidence level is 95% hence the level of significance is  

   \alpha = (100-95)\%

=> \alpha = 0.05

So the critical value of  \frac{\alpha }{2} obtained from the normal distribution table is

     Z_{\frac{\alpha }{2} } = 1.96

Generally the margin of error is mathematically evaluated as

     E =  Z_{\frac{\alpha }{2} } * SE    

   E =  1.96 * \frac{1}{4}

    E = 0.49

Generally the sample size is mathematically represented as

  n =[ \frac{Z_{\frac{\alpha }{2}  * s^2}}{E}]^2

=> n  = [\frac{1.96 * 1.5}{0.49} ]^2

=> n  = 36

6 0
3 years ago
There are two different maps of ohio. The scale on the first map is 1 cm to 10 km. The distance from cleveland to clncinnati is
Ivanshal [37]

1. To answer this question we must keep on mind that we already have the distance from Cleveland to Cincinnati.

2. They tell us that it is 40 centimeters on the first map.

3. If on the first map 1cm = 10km then:

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4. Then the distance from Cleveland to Cincinnati is 400 kilometers.

5. On the second map 1cm = 50km

6. Then we want to know how many centimeters represents 400 kilometers on the second map. Therefore:

400/50= 8

 The answer is: 8 centimeters.

6 0
3 years ago
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