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DiKsa [7]
3 years ago
11

The FDA has established that the concentration of a certain pesticide in apples may not exceed 10 ppb. A random sample of 100 ap

ples from a major orchard had an average pesticide content of 10.03 ppb with a standard deviation of 0.12 ppb. Are the apples within the FDA requirement
Mathematics
1 answer:
ki77a [65]3 years ago
4 0

Answer:

Step-by-step explanation:

(10.03 - 10)/(.12/sqrt 100) = 2.5

P(Z > 2.5) = .0062

p-value = .0062. The apples are not within the FDA requirement

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Write down the first three terms of the sequence whose nth term is given by 2n-5
likoan [24]

Answer:

- 3, - 1, 1

Step-by-step explanation:

To find the first 3 terms substitute n = 1, 2, 3 into the formula

a₁ = 2(1) - 5 = 2 - 5 = - 3

a₂ = 2(2) - 5 = 4 - 5 = - 1

a₃ = 2(3) - 5 = 6 - 5 = 1

The first 3 terms are - 3, - 1, 1

6 0
3 years ago
Is the expression 2f + 4f + 2 – 3 equivalent to 6f – 1? 6f – 1 evaluated at f = 9 is 53. 2f + 4f + 2 – 3 evaluated at f = 9 is a
morpeh [17]
We have that

the expression 2f + 4f + 2 – 3-------> we can group it   (2f+4f)+(2-3)
(2f+4f)+(2-3)=(6f-1)
therefore
the expression [2f + 4f + 2 – 3] is equivalent to [6f-1]

if the expression [6f-1] for f=3 is 17
then
the expression [2f + 4f + 2 – 3] for f=3 is also 17

<span>let's check it
</span>[2*3 + 4*3 + 2 – 3]--------> [6+12+2-3]=[20-3]=17------> is ok
6 0
3 years ago
Read 2 more answers
How many times does 7 go into 48
givi [52]
6 times because 6•7=42 so it must be 6 because 7•7=49
Good luck!!
4 0
3 years ago
Verify identity list steps. Cot(t)(1-cos^2(t))=cos(t)sin(t)
storchak [24]
Remember: We have to work from either the LHS or the RHS.
(Left hand side or the Right hand side)

You should already know this:

\huge{Cot(t) = \frac{1}{tan(t)} = \frac{1}{\frac{sin(t)}{cos(t)}} = 1\div \frac{sin(t)}{cos(t)} = 1\times \frac{cos(t)}{sin(t)}=\boxed{\frac{cos(t)}{sin(t)}}


You should also know this:

sin^2(t) + cos^2(t) = 1\\\\\boxed{sin^2(t)} = 1 - cos^2(t)

So plugging in both of those into our identity, we get:

\frac{cos(t)}{sin(t)}\cdot sin^2(t) = cos(t)\cdot sin(t)

Simplify the denominator on the LHS (Left Hand Side)

We get:

cos(t) \cdot sin(t) = cos(t) \cdot sin(t)

LHS = RHS

Therefore, identity is verified.
4 0
3 years ago
What is the distance between -6 and -3 on a number line?
Ira Lisetskai [31]
I think it's 3 but idk I'm not good at math
7 0
3 years ago
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