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2 years ago

5 4

Mathematics

1 answer:

Igoryamba2 years ago

7 0

Answer:

x 64 3pk1

Step-by-step explanation:

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The equation for line j can be written as y= 1 2 x–4. Parallel to line j is line k, which passes through the point ( – 8, – 5).

blagie [28]

Just like this
Y=12x+91

8 0

3 years ago

Lettuce is planted on a 46-acre field. The field is divided into one-acre subplots. A sample is taken from each subplot to est

nalin [4]

The correct answer is B. Stratified sampling is used since the field is divided into subplots and a random sample is taken from each subplot.

Explanation:

Sampling refers to the process followed by researchers to select a group of individuals from a larger group; considering in most studies it is not possible to analyze all the population. In the case of stratified sampling, this involves dividing the general population into smaller groups, which are known as strata; after this, the researcher selects a specific number of individuals from each strata. This method guarantees the sample is selected randomly, and therefore the study is not biased. Stratified sampling was the method used in the example described because, in this, the general population (46-acre field) was divided into subplots that represent the strata. Also, after this, the researcher selected one random sample.

7 0

3 years ago

Which term describes 2x + 5 = 17?

ki77a [65]

Answer:

Expression

Step-by-step explanation:

6 0

3 years ago

Grant spent half of his weekly allowance. Then he earned $5 back by doing the dishes. What is his weekly allowance if he ended w

goldfiish [28.3K]

Answer:

Grant's weekly allowance is $20.

Step-by-step explanation:

We know that Grant ended with $15. We can say that Grant's weekly allowance is x.

x/2 + 5 = 15

Now to solve:

x/2 + 5 - 5 = 15 - 5 (subtract 5 from both sides to isolate the x/2)

x/2 = 10

x/2 * 2 = 10 * 2 (multiply both sides by 2 to isolate the x)

x = 20

Grant's weekly allowance is $20.

7 0

3 years ago

Please help with this question I’ve been stuck on it if you can’t see click the picture it will make it a little bit bigger

Elza [17]

Answer:

The option '$20 a month' is the correct option.

Step-by-step explanation:

The slope-intercept form of the line equation

$y = mx+b$

where

m is the rate of change or slope

b is the y-intercept

Given that Marta has opened a saving account with $25.

In other words, the initial condition of the function is $25.

Thus, the y-intercept b = 25

Let y be the total amount

Let x be the number of months

Given that at the end of three months, she has $85 in her account.

so we get the point (x, y) = (3, 85).

Now, in order to determine the rate of change or slope, substitute x = 3, y = 85 and b = 25 in the slope-intercept form of the line equation to determine the rate of change or slope

y = mx + b

85 = m(3) + 25

85 = 3m + 25

switch sides

3m + 25 = 85

subtract 25 from both sides

3m + 25 - 25 = 85 - 25

3m = 60

divide both sides by 3

3m/3 = 60/3

m = 20

so, the rate of change is $20 a month.

Thus, Marta has been making deposits at the rate of $20 a month to her savings.

Therefore, the option '$20 a month' is the correct option.

4 0

3 years ago