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andre [41]
3 years ago
8

Which answer do I pick .

Mathematics
1 answer:
Jobisdone [24]3 years ago
5 0
I don’t think you pick an answer you just put all of those formulas and solutions into your calculator and that will give you what you need to move onto the next question/ step
You might be interested in
12y=17-9x and -4y-3x=31 solve by elimination
vodka [1.7K]

Answer:

0 ≠ 110

No solution

Step-by-step explanation:

Solve by Addition/Elimination

12y = 17 − 9x and −4y − 3x = 31

Reorder 17 and −9x. 12y = −9x + 17

−4y − 3x = 31

Add 9x to both sides of the equation.

12y + 9x = 17

−4y − 3x = 31

Reorder the polynomial.

9x + 12y = 17

−4y − 3x = 31

Reorder the polynomial.

9x + 12y = 17

−3x − 4y = 31 9x + 12y = 17

 Multiply each equation by the value that makes the coefficients of x opposite.

9x + 12y = 17

(3) ⋅ (−3x − 4y) = (3) (31)

Simplify (3) ⋅ (−3x − 4y).

Apply the distributive property.

9x + 12y = 17

3 (−3x) + 3 (−4y) = (3) (31)

Multiply −3 by 3. 9x + 12y = 17

−9x + 3 (−4y) = (3) (31)

 Multiply −4 by 3. 9x + 12y = 17

−9x − 12y = (3) (31)

 Multiply 3 by 31. 9x + 12y = 17

−9x − 12y = 93

Add the two equations together to eliminate x from the system.

9x+12y=17

+−9x−12y=93

0=110

Since 0 ≠ 110, there are no solutions. No solution

7 0
3 years ago
If you want to study which science course students liked the most during high school, you should survey... science teacher's, be
den301095 [7]

Answer:

the last option

Step-by-step explanation:

please put brainliest

5 0
2 years ago
In a large population, 76% of the households have cable tv. A simple random sample of 225 households is to be contacted and the
serious [3.7K]

Answer:

0.017559

Step-by-step explanation:

Data provided:

Probability of Households Having cable TV, p₀ = 76% = 0.76

Therefore,

The probability that the Households not having cable TV = 1 - 0.76 = 0.24

Sample size, n = 225 households

sample proportions is less than 82% i.e p = 0.82

Now,

The standard error, SE = \sqrt{\frac{p_0(1-p_0)}{n}}

or

SE = \sqrt{\frac{0.76(1-0.76)}{225}}

or

SE = 0.02847

and,

Z=\frac{p-p_0}{SE}

or

Z=\frac{0.82-0.76}{0.02847}

or

Z = 2.107

therefore,

P(sample porportions < 0.82) = P(Z < 2.107)

now from the p value from the Z table

we get

P(sample porportions < 0.82) =  0.017559

6 0
2 years ago
What would the proportion be for #20 and #21<br><br> Thx :)
ikadub [295]
8 x 12 (15) = 120x180

71.25*3=3.75 = 3 1/4 inches
8 0
2 years ago
1)Shannon takes a class to learn Japanese.The class costs $243 and lasts for 12 weeks.what is the cost,per week,of the Japanese
miskamm [114]
243 divided by 12 is $20.25
5 0
3 years ago
Read 2 more answers
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