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lidiya [134]
1 year ago
12

Solve the equation by factoring. x² + 2x - 63 = 0 x = -9, [?]

Mathematics
1 answer:
xeze [42]1 year ago
7 0

Step-by-step explanation:

x² + 2x - 63 = 0

(x+9)(x-7)=0

x=-9 x=7

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What's the value of 28 tens
Ludmilka [50]
The value of 28 tens is 280 because a ten is literally 10 you only multiply 28*10= 280 So the value of 28 tens is 280.

Thank You!
4 0
3 years ago
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Which number is greater? <br> 2.234
MAXImum [283]
The answer greater is probably 100

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Find the value of given expression<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B35%20%5Ctimes%2035%7D%20" id="TexFormul
iren [92.7K]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
The range of five numbers is 10, the mean is 13.6, the median is 14,
denis23 [38]

Answer:

8 13 14 15 18.

Step-by-step explanation:

The median (the middle number) is 14 so we have

x x 14 x x       where x is a single number with each number being different (as there is no mode).

The mean is 13.6 so we have the total numbers

= 13.6 * 5 = 68.

The  4 numbers left must total 68-14 = 54 and the difference between the highest and lowest is 10.

I sense that the lowest and highest will add up to  about 1/2 of 54 so:

Try 8 and 18 for these last 2 numbers

The list would be 8 x 14 x 18.

The 2 numbers left will add up to 54 - 26 = 28 . One of these must be < 14 and the other > 14.  13 and 15 would fit.

So a possible data set  is:

8 13 14 15 18.

7 0
3 years ago
I'm having trouble solving this I don't know the steps
Andreas93 [3]

Answer:

x=4

Step-by-step explanation:

21x+6+90=180

First, we need to subtract the numbers.

21x=180-90-6

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Now, we need to find the value for 1x, so divide the whole equation by 21

84/21

21/21

x=4

Hope this helps!

8 0
3 years ago
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