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Karolina [17]
3 years ago
9

CAN someone help with #4 please?

Mathematics
2 answers:
Masja [62]3 years ago
8 0
The constant of proportionality is <em>4 .</em>

The equation is  [ <em>Height = (4) times (Days)</em> ] .

When the sunflower is 60cm tall,                60 = (4) times (Days).

Divide each side of the equation by 4:       <em>15  =  Days</em>
Margaret [11]3 years ago
5 0
Itwould be the 25 day the sunflower would be 60 cm tall
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The number 16 has four fourth roots. In other words, there are four complex numbers that can be entered in the square in the equ
Tems11 [23]

Answer:

Step-by-step explanation:

Hello, we know that the z complex solutions of

z^4=1

are

1, i, -1, -i

so, the solutions of z^4=16=2^4 are

2, 2i, -2, -2i

Thank you

3 0
3 years ago
Solve the following quadratic equation for all values of x in simplest form. 7+2x^2=11​
ollegr [7]

Answer:

x=-\sqrt2\text{ or } x=\sqrt2

Step-by-step explanation:

We have:

7+2x^2=11

To solve, we will isolate the x variable. Therefore, subtract 7 from both sides:

2x^2=4\\

Divide both sides by 2:

x^2=2

Take the square root of both sides. Since we’re taking an event root, we will need plus/minus. Therefore:

x=\pm\sqrt2

Therefore, our solutions are:

x=-\sqrt2\text{ or } x=\sqrt2

6 0
3 years ago
Find the distance between points P(4, 4) and Q(9, 3) to the nearest tenth
ddd [48]

Answer:

5.1 units

Step-by-step explanation:

(4, 4) & (9, 3)

To find the distance of two points, we use the distance formula:

d = \sqrt{(x_{2}-x_1)^2 + (y_2-y_1)^2 }

Let's plug in what we know.

d = \sqrt{(9 - 4)^2 + (3 -4)^2 }

Evaluate the parentheses.

d = \sqrt{(5)^2 + (-1)^2 }

Evaluate the exponents.

d = \sqrt{(25) + (1)}

Add.

d = \sqrt{(26)}

Evaluate the square root.

d = \sqrt{26} or 5.0990 units

Round to the nearest 10th.

5.1 units

Hope this helps!

3 0
3 years ago
How to do percentages?
Gwar [14]
To calculate<span> the </span>percentage<span> increase, work out the difference (increase) between the two numbers you are comparing. Then divide the increase by the original number and multiply the answer by 100.</span>
8 0
3 years ago
Read 2 more answers
Devin was helping his grandfather gather corn in the
SVETLANKA909090 [29]

Answer:

$4/hour

Step-by-step explanation:

From 7:30 am to 10:00 am it's 2.5 hours.

10 * 2.5 hours = 25 hours

He worked a total of 25 hours.

$100/(25 hours) = $4/hour

7 0
4 years ago
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