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V125BC [204]
2 years ago
7

3+1-4+7=? I need help with this

Mathematics
2 answers:
vovikov84 [41]2 years ago
5 0

Answer:

Step-by-step explanation:

first <em>step:    </em>3 + 1 =  4

<em>second step:  </em>4 - 4 = 0

<em>third step:</em>   0 + 7 =<u> 7 </u>  (the answer is 7 )

inysia [295]2 years ago
4 0
The answer is 7, 3 plus 1 equals 4 minus four equals zero plus 7= 7
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Find x, y, and z<br> 3<br> 7<br> Z
FrozenT [24]

Step-by-step explanation:

If x=3, y=7 when x+y=z

z=3+7

z=10

7 0
3 years ago
Plz help.. btw this is 7th grade math. (22 pts.)
belka [17]

Answer:

He needs 4 1/3 buckets of fish.

Step-by-step explanation:

140 - 75 = 65 pounds of fish left to eat

15x = 65

x = 65 / 15

x = 4  1/3 buckets of fish left to eat


6 0
4 years ago
A new experimental strain of pepper plants was being studied to estimate how much fruit one plant would produce in a typical gro
zmey [24]

Answer:

58.9% produced produced peppers weighing between 13 and 16 pounds.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 15

Standard Deviation, σ = 1.75

We are given that the distribution of weight of peppers is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(peppers weighing between 13 and 16 pounds)

P(13 \leq x \leq 16) = P(\displaystyle\frac{13 - 15}{1.75} \leq z \leq \displaystyle\frac{16-15}{1.75}) = P(-1.142\leq z \leq 0.571)\\\\= P(z \leq 0.571) - P(z < -1.142)\\= 0.716 - 0.127 = 0.589 = 58.9\%

P(13 \leq x \leq 16) = 58.9\%

58.9% produced produced peppers weighing between 13 and 16 pounds.

7 0
4 years ago
Did I do this right?
Rasek [7]

Answer:

Yea u did......

Step-by-step explanation:

you did right because all the steps are right

5 0
3 years ago
Read 2 more answers
Describe the sampling of p hat. Assume that the size of the population is 25000 n= 300 p=0.7
katrin [286]

The mean of the given sample data is 210, and the standard deviation is 7.937.

Given size 'n' = 300

The population proportion 'p' = 0.7

Let 'x' be the random variable of the binomial distribution

a)  mean of the binomial distribution  = n p = 300 × 0.7

                                                              μ  = 210

b)  variance of the binomial distribution

⇒ n p q

⇒ 300 × 0.7 ×0.3

⇒ σ² = 63

The standard deviation of the binomial distribution:

⇒ √n p q = √63 = 7.937

Thus, the mean of the given sample data is 210, and the standard deviation is 7.937.

Learn more about the standard deviation here:

brainly.com/question/16555520

#SPJ1

The question seems to be incomplete the correct question would be:

describe the sampling of p hat. Assume that the size of the population is 25000 n= 300 p=0.7 a) Determine the mean of the sampling distributionb) Dtermine the standard deviation of the sampling distribution

3 0
1 year ago
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