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4 years ago

Whats a mathematical phrase containing at least one variable

Mathematics

2 answers:

kirza4 [7]4 years ago

7 0

Answer:

Algebraic Expression

Step-by-step explanation:

The variable is unknowns therefore it has to be algebraic and it is an expression as we need a form of showcasing it

This is why it is Algebraic Expression

allsm [11]4 years ago

7 0

Answer algebraic expression

Step-by-step explanation:

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Bobby bought 1.2 pounds of turkey at a cost of $2.50 per pound. Carla bought 1.4 pounds of turkey at a cost of $2.20 per pound.

stiv31 [10]

2.5*1.2= $3
2.2 *1.4= $3.08
Carla paid more but got more. if she would have got the same amount as Bobby she would have paid less $2.64

3 0

4 years ago

Please help. 60 41 49 30

Hitman42 [59]

Answer:

A: 60°

Step-by-step explanation:

Hopefully this helps!

7 0

3 years ago

Help pleaseee hurry if u can

Alborosie

Answer:

sorry your questions image is blurr

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3 years ago

A Leopoldo su Maestra l le pidió que calcular el perímetro de un rectángulo que tiene las medidas que se indican en el dibujo cu

guapka [62]

Answer:

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Step-by-step explanation:

7 0

3 years ago

foot locker uses sales per square foot as a measure of store productivity last year the mean annual sales per square foot was 39

lord [1]

Answer:

There is a 82% probability that th esample mean annual sales per square foot is at least $384.

Step-by-step explanation:

We have a population with mean 390 and standard deviation 45.83.

Samples of size n=49 are taken.

The parameters of the sampling distribution are:

$\mu_s=\mu=390\\\\ \sigma_s=\dfrac{\sigma}{\sqrt{n}}=\dfrac{45.83}{\sqrt{49}}=\dfrac{45.83}{7}=6.547$

First, we have to calculate the z-score that satisfies:

$P(z>z^*)=0.82$

This z-score, looked up in a standard normal distribution table, is z=-0.915.

Then, we can calculate the sample mean as:

$M=\mu_s+z\cdot\sigma_s=390+(-0.915)\cdot 6.547=390-6=384$

There is a 82% probability that th esample mean annual sales per square foot is at least $384.

3 0

3 years ago