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Fed [463]
3 years ago
5

If 16x = 1/64, find the value of x

Mathematics
1 answer:
algol [13]3 years ago
8 0
Just divide the 16 to both sides
x= 1
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If z=2.5, x=102 and x=100, what is s?
Bad White [126]

I believe the problem ask for s which is the standard deviation. We must recall that the formula for z statistic is stated as:

z = (x – x over bar) / s

Where,

z = z statistic = 2.5

x = sample value or sample score = 102

x over bar = the sample mean or sample average  = 100

s = standard deviation = unknown

Rewriting the equation in terms of s:

s = (x – x over bar) / z

Substituting the given values into the equation:

s = (102 – 100) / 2.5

s = 0.8  

Therefore the standard deviation s is 0.8

7 0
3 years ago
Shop Rite has jeans on sale for 3/10 off. Save More has jeans on sale for 33% off. Which store has a better deal? Explain.
umka21 [38]

save more has a better deal because when you convert 33% into a fraction out of ten it becomes 3.3/10 and shop right is 3/10 so 3.3 is greater than 3.

5 0
3 years ago
What is the amout of matter in an object​
Aneli [31]

Answer:

the amount of matter is mass. how much space you take up

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the factored form of this expression?
kirill [66]

Answer:

= (3t+2)(3t-2)(3t-4)

Step-by-step explanation:

Given the expression 27t^3 - 36t^2 - 12t + 16

On factoring:

(27t^3 - 36t^2) - (12t + 16)

= 9t²(3t-4)-4(3t-4)

= (9t²-4)(3t-4)

factoring 9t²-4

9t²-4 = (3t)² - 2²

From different of two square, a²-b² = (a+b)(a-b)

Hence (3t)² - 2² = (3t+2)(3t-2)

= (9t²-4)(3t-4)

= (3t+2)(3t-2)(3t-4)

Hence the factored form of the expression is (3t+2)(3t-2)(3t-4)

6 0
3 years ago
Can someone please help explain how to do this.<br><br> Solve the inequality: 4 - x &lt; 9
ladessa [460]

Answer:

x > -5

Step-by-step explanation:

4-x < 9

-x < 9-4

-x < 5

x > -5

6 0
2 years ago
Read 2 more answers
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