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lesya692 [45]
3 years ago
14

Which is the best first step when solving the following system of equations?x+y=3 and 4x-y=7

Mathematics
1 answer:
fomenos3 years ago
8 0

I think it would be x+y=3

Hope this helps


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A factory employs several thousand workers, of whom 35% are Hispanic. If the 17 members of the union executive committee were ch
Elza [17]

Answer:

as p decreases, sigma decreases.

Step-by-step explanation:

Given that 35%are hispanic. For a sample of 17 members

n = 17

p = 0.35

and the number of Hispanics on the committee would have the binomial distribution

a) Mean of X = E(x) = np = 17(0.35)\\= 5.95

b) Std dev X = \sqrt{npq} =\sqrt{5.95(0.65)} \\=1.9665

c) Here n =17 and p =0.1

Mean = 1.7\\\sigma = \sqrt{17(0.1)(0.9)} =1.234

d) When p = 0.01

Mean = 0.17\\\sigma = 0.410

Thus we find that as p decreases, sigma decreases.

8 0
3 years ago
Use the slope formula to find the slope of the
muminat

Answer:

m= 2/17

Step-by-step explanation:

do the formula x1 and y1 and x2 and y2

x1, y1   x2, y2

(-11,15) (23,19)

when subtracting you ALWAYS START WITH YOUR Ys

19-15= 4

now subtract your Xs

23- (-11)= 34

now your answer is 4/34

but that's not the last step you can simplify it and make it smaller,

they both go into 2 so know divide both of then numbers by 2

and you should get 2/17

your final answer should be 2/17

4 0
2 years ago
Read 2 more answers
Translate "The product of the cube root of 5 and X^ prime prime into an algebraic expression
svp [43]

Answer:

Le produit de la racine cubique de 5 et de X ^ prime prime en une expression algébrique: french, youre welcome.

Step-by-step explanation:

5 0
3 years ago
The marked price of a tablet is €800. During a sale its sold at €640. This means one saves €160 during the sale
ArbitrLikvidat [17]

Answer:

c. $28.84

Step-by-step explanation:

C 28.84 just multiply 38.45 by .25 then you should get 9.6125 you subtract 38.45 by 9.6125 and get 28.84

3 0
2 years ago
Which one is the answer I need sum help no cap
Valentin [98]

Answer:

2.5%

Step-by-step explanation:

After 10.4 ounces, the number of adults goes down drastically. The rest of the options are 47.5%, 95% and 97.5%, which are not the answers. Hence, the answer is 2.5%.

4 0
3 years ago
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