All categories

3 years ago

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

You might be interested in

If 2a + 7b+2c=16 and 2a + 3b +2c= 8, then b = ? (A)-2 (B) O (C) 2 (D) 4 (E) 6

Sauron [17]

Answer:

Step-by-step explanation:

Given equations 2a + 7b+2c=16 and 2a + 3b +2c= 8, you want to know the value of b.

<h3>Solution</h3>

The coefficients of 'a' and 'c' are the same in the two equations, so we can eliminate those variables by subtracting one equation from the other. We can keep the resulting coefficient of 'b' positive if we subtract the second equation from the first.

(2a +7b +2c) -(2a +3b +2c) = (16) -(8)

4b = 8 . . . . . . . simplify

b = 2 . . . . . . . divide by 4

5 0

1 year ago

T object]user: what is the slope of a line that passes through (–4,–13) and (19,11)?

Ray Of Light [21]

Slope is difference in "y" divided by difference in "x"
(–4,–13) (19,11)

slope = (-13 -11) / (-4, -19) = -24 / -23

8 0

3 years ago

Please help asap!:)) and show work!

Vikki [24]

Answer:

The other acute angle = 33 1/3°

Step-by-step explanation:

Hard to read the angle measure.

one acute angle = 56 2/3° x = the second acute angle

Find the other acute angles.

The two acute angles sum in a right triangle = 90°

56 2/3° + x° = 90°

x = 90 - 56 2/3

x = 89 3/3° - 56 2/3°

x = 33 1/3°

8 0

3 years ago

HELPPPPPPPPPPPPPPPPPPP

FrozenT [24]

Answer: (A)
Explanation: For there to be a solution at any one point, both inequalities must share a common point. This point will then satisfy both inequations, becoming a solution to both inequality.

Let's pick (A).
For there to be at least one solution, the first inequality must have a solution of $x \geq 3$ . Since the left side has clearly no points common to both graphs. Hence, no solution can exist that will satisfy both.

All of the other graphs have at least one point in common.
(B) has $x \leq -1$
(C) has $x = 1$
(D) has $x \leq -2$

7 0

3 years ago

Read 2 more answers

Find the length of line segment A (-2,3) B (2, 1)

Gekata [30.6K]

Find the distance between points A-2; 3, B2; 1:

d = √(xb - xa)2 + (yb - ya)2 =

= √(2 - (-2))2 + (1 - 3)2 =

= √42 + (-2)2 = √16 + 4 =

= √20

6 0

3 years ago