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Anarel [89]
3 years ago
10

Write a word phrase for the variable expression.

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
7 0
The answer to the question is c
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Write the standard form of the equation of the circle described below.
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Ce clasă ești sa văd daca te pot ajuta

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3 years ago
A square patio has a area of 215 square feet. how long is each side of the patio to the nearest 0.05
Vanyuwa [196]

A square has all 4 sides the same.

When given the area of a square , you can find the length of the side by finding the square root of the area:


Side length = √215

Side Length = 14.6628

Rounding to the nearest 0.05 would = 14.65 feet.

8 0
3 years ago
A hospital uses cobalt-60 in its radiotherapy treatments for cancer patients. Cobalt-60 has a half-life of 7
NeTakaya

Answer:

We have 197 g of Co-60 after 18 months.

Step-by-step explanation:

We can use the decay equation.

M_{f}=M_{i}e^{-\lambda t}

Where:

  • M(f) and M(i) are the final and initial mass respectively
  • λ is the decay constant (ln(2)/t(1/2))
  • t(1/2) is the half-life of Co
  • t is the time at the final amount of m

M_{f}=228e^{-\frac{ln(2)}{7} 1.5}    

M_{f}=197\: g    

<u>Therefore, we have 197 g of Co-60 after 18 months.</u>

I hope it helps you!

4 0
3 years ago
A company is evaluating a new biology program that is supposed to improve test scores. The box plots show the the results of bio
rjkz [21]

Answer:

No, because the median test score decreased 5 points.

Step-by-step explanation:

The middle line is is the median so, if the pre-test is 60 and the post-test is 55 then there is a 5 point difference.

5 0
3 years ago
Read 2 more answers
What's the area of the trapezoid
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46.5cm squared I believe
Hope this helped ;)

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