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OLEGan [10]
3 years ago
15

A box of nails weigh 0.4 pounds how much do 42 boxes of nails weigh

Mathematics
1 answer:
melamori03 [73]3 years ago
6 0
42 boxes of nails at .4 pounds a box would weigh 16.8 pounds.
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Y =1/4x + 3<br> Y = -1<br> Help me
kap26 [50]

Y = 7  

Explication pas à pas:

x est -3 donc -3 et connectez le x.

Y = -1 / 3 (-3) +5.

Y = 1 + 5

Y = 7

7 0
3 years ago
Each year, all final year students take a mathematics exam. It is hypothesized that the population mean score for this test is 8
drek231 [11]

Answer:

95% Confidence interval:  (96.06,103.94)

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 85

Sample mean, \bar{x} = 100

Sample size, n = 30

Alpha, α = 0.05

Population standard deviation, σ = 11

95% Confidence interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

100 \pm 1.96(\frac{11}{\sqrt{30}} ) = 100 \pm 3.94= (96.06,103.94)

(96.06,103.94) is the 95% confidence interval for  the population mean test score.

8 0
3 years ago
What is the product of -5x^5(-8x^4-9x-9)
Phoenix [80]
-5x^5 * -8x^4 - 5x^5*-9x - 5x^5*-9

= 40x^9 + 45x^6 + 45x^5
5 0
3 years ago
Consider {4/7, 5/9, 6/11, 7/13, 8/15}. what is the largest ratio?​
Degger [83]

Answer:

8 by 15 ?

Step-by-step explanation:

8 by 15 . ..........

5 0
2 years ago
Read 2 more answers
NEED HELP ASAP!
Olegator [25]

Answer:

Option (C)

Step-by-step explanation:

Two statements given in the question are,

p: Memorial Day is in July

q: Parallel lines never intersect

We have to tell the represent the symbolic notation of the compound statement,

"Memorial Day is in July or parallel lines intersect"

Here word 'Or' is combining these statements.

We know word 'Or' means Disjunction which is denoted by the symbol (∨).

So the compound statement will be denoted by p ∨ q.

Option (C) will be the answer.

5 0
3 years ago
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