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anzhelika [568]

4 years ago

13

What is a direct function?

1 answer:

andriy [413]4 years ago

5 0

Answer:

A direct function (also called an identity function) is a function that always returns the same value as its argument.

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Please help!!!!!!!!!!!!!!

Montano1993 [528]

<h3>Answer: 7.1</h3>

=========================================================

Explanation:

The two points are (x1,y1) = (1,3) and (x2,y2) = (8,4)

Use the distance formula to get,

$d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(1-8)^2 + (3-4)^2}\\\\d = \sqrt{(-7)^2 + (-1)^2}\\\\d = \sqrt{49 + 1}\\\\d = \sqrt{50}\\\\d = \sqrt{25*2}\\\\d = \sqrt{25}*\sqrt{2}\\\\d = 5\sqrt{2}\\\\d \approx 7.0710678\\\\d \approx 7.1$

Alternatively, you can plot the two points A(1,3) and B(8,4) on the same xy grid. Then plot point C(8,3). Note that C has the same x coordinate as B, and the same y coordinate as A. Triangle ABC is a right triangle, where the 90 degree angle is at point C. The distance from A to B is the same as finding the length of AB, which is the hypotenuse.

This means we can apply the pythagorean theorem to find the hypotenuse AB. The distance formula is a modified version of the pythagorean theorem. Refer to the diagram below.

6 0

3 years ago

If I borrowed $300 from Jen and paid her back $315 at 5% simple interest, how long was my loan?

Sever21 [200]

Answer umm i think oiuyg

5 0

3 years ago

Simplifying fractions Sheet 2<br>

raketka [301]

<u>Simplifying fractions:</u>

1) $\frac{14}{20} =\frac{7}{10}$ 2) $\frac{4}{8} =\frac{1}{2}$

3) $\frac{9}{12} =\frac{3}{4}$ 4) $\frac{12}{15} =\frac{4}{5}$

5) $\frac{8}{18} =\frac{4}{9}$ 6) $\frac{14}{21} =\frac{2}{3}$

7) $\frac{12}{16} =\frac{3}{4}$ 8) $\frac{10}{24} =\frac{5}{12}$

9) $\frac{15}{35}=\frac{3}{7}$ 10) $\frac{13}{26} =\frac{1}{2}$

11) $\frac{11}{55}=\frac{1}{5}$ 12) $\frac{9}{21} =\frac{3}{7}$

13) $\frac{16}{26} =\frac{8}{13}$ 14) $\frac{20}{32} =\frac{5}{8}$

15) $\frac{18}{24} =\frac{3}{4}$ 16) $\frac{21}{27} =\frac{7}{9}$

17) $\frac{4}{32} =\frac{1}{8}$ 18) $\frac{25}{40} =\frac{5}{8}$

<em>Hope this helps :)</em>

5 0

3 years ago

The perimeter of a square is 28ft. can you conclude that area of the square is 49 square feet? Explain.

GREYUIT [131]

Since the perimeter of the square is 28ft, the side length of the square is 7ft.

Hence, the area of the square is 49 square feet.

7 0

3 years ago

<img src="https://tex.z-dn.net/?f=4%20%5Ctimes%20%20%7B2%7D%5E%7B%20-%20%20%5Cfrac%7Bt%7D%7B5%7D%20%7D%20%20%3D%20288" id="TexFo

Elena L [17]

$~H~e~l~l~o~ !$

$\text{\underline{A N S W E R : }}$

$t = -1400$

$\boxed{\text{EXPLANATION :}}$

Multiply the numbers.

$4$ · $2 - 1$ · $\frac{t}{5} = 288$

$8 - 1$ · $\frac{t}{5} = 288$

Combine multiplied terms into a single fraction.

$8 - 1$ · $\frac{t}{5} = 288$

$8$ $+$ $\frac{-t}{5} = 288$

Subtract 8 from both sides of the equation.

$8 + \frac{-t}{5} = 288$

$\frac{-t}{5} = 280$

Multiply all terms by the same value to eliminate fraction denominators.

$\frac{-t}{5} = 2 8 0$

$5$ · $\frac{-t}{5} = 5$ · $280$

Cancel multiplied terms that are in the denominator.

$5$ · $\frac{-t}{5} = 5$ · $280$

$-t = 5$ · $280$

Multiply the numbers.

$-t = 5$ · $280$

$- t = 1400$ .

Divide both sides of the equation by the same term.

$- t = 1400$

$\frac{-t}{-1} =\frac{1400}{-1}$

Simplify.

$t = - 1400$

Solution.

$- 1400$ .

$\textit{ Hope It Helped! }$

$\text{\underline{A N S W E R : }}$

$\textbf{Jace}$ ﾉｼ

$\boxed{\text{And ask me, if you have any questions ! :)}}$

7 0

3 years ago