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mylen [45]
3 years ago
12

Write the set of real numbers between 110 and 220 in interval notation.

Mathematics
2 answers:
KiRa [710]3 years ago
4 0

Answer:

110\geq x \leq 220

Step-by-step explanation:

Given

Minimum: 110

Maximum = 220

Required

Write as interval notation

Let the real numbers be represented with x

We start by setting x greater than or equal to the minimum:

x \geq 110

Then, we set x less than or equal to the maximum:

x \leq 220

Write out both inequalities

x \geq 110 and x \leq 220

This can be rewritten as:

110 \geq x and x \leq 220

Both inequalities can be merged to give:

110\geq x \leq 220

Kamila [148]3 years ago
3 0

Answer:

(110,220)

I not sure about this answer but if I correct than your welcome and if I wrong then sorry.

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Answer:

If everything is a dollar then the store will make $7 from selling all of those treats.

Step-by-step explanation:

:D

8 0
3 years ago
A manufacturer of running shoes knows that the average lifetime for a particular model of shoes is 15 months. Someone in the res
Alexus [3.1K]

Answer:

Step-by-step explanation:

Hello!

So you have a new type of shoe that lasts presumably longer than the ones that are on the market. So your study variable is:

X: "Lifetime of one shoe pair of the new model"

Applying CLT:

X[bar]≈N(μ;σ²/n)

Known values:

n= 30 shoe pairs

x[bar]: 17 months

S= 5.5 months

Since you have to prove whether the new shoes last more or less than the old ones your statistical hypothesis are:

H₀:μ=15

H₁:μ≠15

The significance level for the test is given: α: 0.05

Your critical region will be two-tailed:

Z_{\alpha /2} = Z_{0.025}= -1.96

Z_{1-\alpha /2} = Z_{0.975}= 1.96

So you'll reject the null Hypothesis if your calculated value is ≤-1.96 or if it is ≥1.96

Now you calculate your observed Z-value

Z=<u>x[bar]-μ</u> ⇒ Z=<u>    17-15     </u> = 1.99

     σ/√n              5.5/√30

Since this value is greater than the right critical value, i.e. Zobs(1.99)>1.96 you reject the null Hypothesis. So the average durability of the new shoe model is different than 15 months.

I hope you have a SUPER day!

5 0
3 years ago
What is the correct answer i have to type in the yellow boxes?
sertanlavr [38]

Answer:

(-10)²= -10 × -10 = 100

Step-by-step explanation:

When any number is squared whether it is positive or negative, the result will always be positive:

Anything squared means the number multiplied by itself:

So:

(-10)²= -10 × -10 = 100

7 0
2 years ago
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Artyom0805 [142]

Answer:

1/2 or 0.5 in decimal

Step-by-step explanation:

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3 0
2 years ago
The function g(x) = x2 is transformed to obtain function h:
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Step-by-step explanation:

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