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3 years ago

Simplify this expression

Mathematics

2 answers:

Varvara68 [4.7K]3 years ago

7 0

The correct answer is option A. Please mark me brainliest

Gnesinka [82]3 years ago

5 0

It’s A!! hope that helped

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Themba buys 2 boxes of mayos on opening the boxes he find that an average of 2 are damagef in each box how many mayos altogether

borishaifa [10]

We would need to know how many are in each box to figure this out.

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3 years ago

The mean amount purchased by a typical customer at Churchill’s Grocery Store is $23.50, with a standard deviation of $5.00. Assu

m_a_m_a [10]

Answer: 0.0170

Step-by-step explanation:

Given : The mean amount purchased by a typical customer at Churchill’s Grocery Store is $23.50, with a standard deviation of $5.00.

i.e. $\mu=23.50$

$\sigma=5$

We assume the distribution of amounts purchased follows the normal distribution.

Sample size : n=50

Let $\overline{x}$ be the sample mean.

Formula : $z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

Then, the probability that the sample mean is at least $25.00 will be :-

$P(\overline{x}\geq\25.00)=P(\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\geq\dfrac{25-23.50}{\dfrac{5}{\sqrt{50}}})\\\\=P(z\geq2.12)\\\\=1-P(z$

Hence, the likelihood the sample mean is at least $25.00= 0.0170

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4 years ago

2. A bowling alley charges $3.00 to rent shoes and $1.50 per game bowled.

Zina [86]

3+1.50n would be an expression for this

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3 years ago

2X- 10 =30 solve for X

Kazeer [188]

2x - 10 = 30
2x = 40
x = 20

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3 years ago

Read 2 more answers

I just need the awnser please

GrogVix [38]

Answer:

The surface area is 294 ft^2 (please give branliest)

Step-by-step explanation:

area of one side 49

multiply by 6 sides

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3 years ago