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liraira [26]
2 years ago
10

Solve this equation -2x + 8 = 22

Mathematics
1 answer:
hichkok12 [17]2 years ago
8 0

I got you :)

-2x + 8 = 22

Subtract 8 from both sides....

-2x = 14    Divide by 2 on both sides....

<h2><u>x = -7</u></h2>

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Number 13. Multiply please.
Dafna11 [192]

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8 0
1 year ago
Someone please help with A, B and C?
Sergeu [11.5K]
A.)

3×4=12; 12×4= 48; 48×2= 96; 96+1= 97

B.)

3×4=12; 12+4=16; 16×2= 32; 32+3=35

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6 0
2 years ago
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Which expression is the simplest form of (27x^-9)^1/3?
lana [24]
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8 0
3 years ago
Which symbol creates a true sentence when x equals 3?
Marta_Voda [28]
Hi <span>Tysona90!
Let's write it with the X as a 3
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4 0
3 years ago
Complete the chart to find the mean,variance,and standard deviation. 45 340 400 825
hoa [83]

Answer:

<u>A. Mean =  402.5</u>

<u>B. Variance = 77,556.25</u>

<u>C. Standard Deviation =  278.49</u>

Step-by-step explanation:

Let's calculate the mean, variance and standard deviation of the set of numbers given:

A. Mean = (45 + 340 + 400 + 825)/4 = 1,610/4 =<u> 402.5</u>

B. Variance [(45 - 402.5)² + (340 - 402.5)² + (400 - 402.5)² + (825 - 402.5)²]/4 =  [(127,806.25 + 3,906.25 +6.25 + 178,506.25/4 =<u> </u><u>77,556.25</u>

C. Standard Deviation = √Variance = √77,556.25 =<u> 278.49</u>

7 0
3 years ago
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