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3 years ago

Solve for y if B= a(c+y) 5

Mathematics

1 answer:

Anastasy [175]3 years ago

3 0

Answer:

Y= -5ac+b/5a

Step-by-step explanation:

SSSOOOoo here is why

5ac + 5ay = b

add -5ac to both sides.

5ac+5ay+-5ac=b+-5ac

5ay=-5ac+b

divide both sides by 5a

5ay/5a = -5ac+b/5a

in which is equal to y=-5ac+b/5a

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What’s 8 squared into a decimal

ycow [4]

Answer:

2.828 i think

Step-by-step explanation:

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2 years ago

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Information about the proportion of a sample that agrees with a certain statement is given below. Use StatKey or other technolog

lorasvet [3.4K]

Answer:

a) Standard Error = 0.010

b) 95% Confidence Interval = (0.0924 , 0.1316)

Step-by-step explanation:

a) The formula for Standard Error = √Sample Proportion (1 - sample proportion)/n

Standard Error = √p (1 - p)/n

We are told in the question that:

In a random sample of 400 people, 112 agree and 288 disagree. Estimate the standard error using 1000 samples

p = x/n

n = 1000 because we were told to use it instead of 400

x = number for people that agree = 112

p = 112/1000

p = 0.112

Standard Error = √p (1 - p)/n

= √0.112 (1 - 0.112)/1000

= √0.112 × 0.888/1000

= √0.099456 /1000

= √0.000099456

= 0.0099727629

Approximately to 3 decimal places = 0.010

Therefore, the standard error is 0.010

b) The Question above also asked that we solve for the 95% Confidence Interval

The formula =

p ± z × Standard Error

p = 0.112

z score for 95% confidence interval = 1.96

Standard Error = 0.010

Confidence Interval =

0.112 ± 1.96 × 0.010

= 0.112 ± 0.0196

0.112 - 0.0196

= 0.0924

0.112 + 0.0196

0.1316

Therefore, the 95% confidence interval = (0.0924 , 0.1316)

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3 years ago

Read 2 more answers

1. Explain the rule to solve - 15 + 4. Then write you answer.

mestny [16]

1) the rule for #1 is is to subtract the small number from the big number so (15-4) (get rid of all the signs when doing this see how i took away the sign from 15) the answer is then 11 but you pit the sign of the bigger number since 15 is the bigger number and it has the negative sign you put the negative sign on 11 so the answer for 1 is -11

2) to solve -3*-5 you have to realize that they are both negative and the rule of multiplying negative integers is that a negative times a negative = a postive (weird but those are the rules) so -3*-5=15

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2 years ago

Write an equation of the circle with center (-6, 2) and diameter 10.

marshall27 [118]

Solution:

We know that the formula to write the equation of a circle is (x – h)² + (y – k)² = r², where h is the x coordinate, k is the y-coordinate, r is the radius of circle, and the center of circle is (-6,2).

<u>Finding the radius of the circle.</u>

Diameter: 10 units
Radius: 10/2 units = 5 units

<u>Creating the equation:</u>

(x – h)² + (y – k)² = r²
=> (x + 6)² + (y – 2)² = 5²

The equation is (x + 6)² + (y – 2)² = 5².

Learn more: brainly.com/question/26573763

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1 year ago

What are the factors in the expression 6(x+5)

madreJ [45]

The answer is 30+6x you would just multiply 6 by 5 then put 6 next to x.

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