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amm1812
3 years ago
9

4. Match these equation balancing steps with the description of what was done in each step.

Mathematics
1 answer:
Archy [21]3 years ago
6 0

Answer:

step 1 - C.

step 2 - A.

step 3 - B.

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Factor 15z^2+17z-18 please show work
siniylev [52]

There is no common factor between 15, 17 and 18 because 17 is prime.  

15z² +17z - 18 =  

d = 17² - 4.15.-18  

d = 289 + 1080  

d = 1369  

z = (-17 +/- \/1369) : 2 * 15  

z = (-17 + 37) : 30  

z' = 20 : 30 = 2/3  

z" = (-17 - 37) : 30  

z" = -54 : 30 = -1.8  

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Answer:

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Step-by-step explanation:

multiply length value by 12

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3 years ago
A trapezoid has angles 54 degrees, 54 degrees, x, and x. Look at the trapezoid shown. What is the measure of angle x? The measur
viktelen [127]

Answer: the answer is C 126°

3 0
2 years ago
5. Explain how you could use compatible numbers to estimate 245 ÷ 3. Then estimate the quotient.​
sdas [7]

Answer:

8

Step-by-step explanation:

Compatible numbers are defined as the numbers which are very close to the numbers that they are replacing that divides evenly into each other.

In the context, we have to estimate the quotient using the compatible numbers in order to estimate 245 divided by 3.

So, estimating 245 as 240 and 3 as 30.

Here, 240 is very close to 245 and 30 is close to 3. So the quotient is the result when we divide 240 by 30 and it divides evenly into 240.

We first divide the non zero parts of each number i.e. 24 by 3 to get the first part of the estimate.

Then we add on the zero if there were left in the problem to get your estimate.

Therefore,

240 / 30 = 8

So here, the quotient is estimated as 8.  

4 0
3 years ago
Dream studio offers 5 music lessons for $60 fox studio offers 8 music lessons for $72 what is the cost per lesson
AlexFokin [52]

Answer:

dream studio

1=$12

fox studio

1=$9

therefore, fox studio is better

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