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3 years ago

5) The depth finder on a fishing boat gives readings

Mathematics

1 answer:

Soloha48 [4]3 years ago

5 0

Answer:this is the work I’ve done so there

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Solve x - y = 5 for y

olga55 [171]

X - y = 5
x = y + 5
y = x - 5

6 0

3 years ago

What are all the solutions of x2 + 3x - 4 = 0?<br> 3 ооооооо<br> DONE

Allisa [31]

Answer:

x = -4, x = 1

Step-by-step explanation:

Now I do not know why you said done, but just saying, if you are done with a question, you should delete it. Now I am just going to assume you knew this and move on with the solution of the problem.

When you factor this equation, you will get (x+4)(x-1).

You can then solve for x using zero product property. The first root is -4 and the second root is 1.

4 0

3 years ago

The perimeter of a rectangle is 36 cm. The length is 10 cm longer than the

Nesterboy [21]

Answer:

Below

Step-by-step explanation:

X(x+10)=36

x= -5+sqrt 61 or-5-sqrt 61

since only the first one bigger than0, x is -5+sqrt61 and other side is sqrt61+5

3 0

3 years ago

Help me pleasee I need to turn it in tonightt

AveGali [126]

Student 1 and student 3 are equivalent

7 0

3 years ago

Read 2 more answers

The proportion of items in a population that possess a specific attribute is known to be 0.45. a. If a simple random sample of s

yanalaym [24]

Answer: 0.05

Step-by-step explanation:

Sampling error is the error occurs by considering sample for study instead of entire population.

Given : The proportion of items in a population that possess a specific attribute is known to be 0.45.

Sample size : n= 100

Sample proportion of items in a population that possess a specific attribute : $\hat{p}=0.48$

Now, the formula to find the sampling error :

$\text{Sampling error} =\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$\text{Sampling error} =\sqrt{\dfrac{0.48(1-0.48)}{100}}$

$=\sqrt{\dfrac{0.48(0.52)}{100}}\\\\=\sqrt{0.002496}\approx0.05$

Hence, the sampling error =0.05

4 0

3 years ago