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GaryK [48]
3 years ago
8

100 POINTS

Mathematics
2 answers:
olga nikolaevna [1]3 years ago
6 0

Answer:

5.2

Step-by-step explanation:

To find the height of the plant after 7 weeks, we need to find out the equation of the line of best fit and plug in 7 for x. We already have our y - intercept, which is 1,  and we have a point on the x axis for which the y coordinate is an integer, (5, 4). Since we already have the y - intercept of +1 we have y = mx + 1. Since this applies to (5,4) we can plug this in to our equation. This is then 4 = 5m + 1. Subtracting 1 from both sides, we get 3 = 5m. Dividing by 5, we receive m = 3/5. Since now we have our slope, we can plug in 7 and find out our answer. Plugging in 7 we receive, y = 3/5 * 7 + 1, which is equal to y = 4.2 + 1. This means that y = 5.2, so 5.2 is our answer.

lisov135 [29]3 years ago
3 0

Answer:

5.2 centimeters.

Step-by-step explanation:

The equation of the line is:

y = mx + b

The slope is 3/5. The y-intercept is given 1.

y = 3/5x + 1

Put x as 7, to find where point y lies.

y = 3/5(7) + 1

y = 21/5 + 1

y = 4.2 +1

y = 5.2

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Step-by-step explanation:

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2 years ago
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puteri [66]

Answer:

Maxine has $1,651.20 remaining after state income tax is deducted from her paycheck.

Step-by-step explanation:

If Maxine earns $ 21.50 an hour and works 40 hours per week, each week she earns a total of $ 860 (40 x 21.5). Since she collects every 2 weeks, her pre-tax salary is $ 1,720 (860 x 2). But the state discounts an income tax of 4%, with which the money that she effectively receives every two weeks is $ 1,651.20 (1720 - (1720 x 0.04).

7 0
2 years ago
What is the approximate circumference of Circle C? Use pi star times text   end text ≈ 3.14. Record your answer to the nearest h
Stels [109]
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7 0
3 years ago
A bicycle has a listed price of $643.95 before tax. If the sales tax rate is 6.75%, find the total cost of the bicycle with sale
Gennadij [26K]

Answer:

  $687.42

Step-by-step explanation:

The total with tax is ...

  (price) + (tax rate)×(price)

  = price(1 +tax rate)

  = $643.95×1.0675 ≈ $687.42 . . . price with tax

7 0
2 years ago
Rewrite the following equation in standard form.<br> y = -7x - 1
Lady bird [3.3K]

Standard form is written Ax + By = C where A, B, and C are all integers.

In other words, no fractions.

Also, the A or the coefficient of the x term must be positive.

The only thing we need to do is add 7x to both sides to get 7x + y = -1.

So 7x + y = -1 is our answer.

5 0
3 years ago
Read 2 more answers
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