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3 years ago

11

NEED HELPPPP PLEASEEE!!! NUMBER 5 ONLY

1 answer:

Reika [66]3 years ago

7 0

Answer:

Let x equal the ice thickness. An equality that represents a safe ice thickness for walkability is:

x ≥ 4 inches

(Plus the graph)

Step-by-step explanation:

Defining a variable just means you let any letter or symbol take the place of something. But you have to specifically say what is what in order for it to be clear.

So I defined "x" as the variable to represent the ice's thickness. And since we want an inequality for all the safe thicknesses, we could say that "x" must be greater than or equal to 4 inches thick in order to safely walk on it.

Lastly, you'd graph it with a solid point on 4 with the arrow going to the right.

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What is the percent of change from 56 to 22? round to the nearest percent

V125BC [204]

$\textrm{percentage change} = \dfrac{\textrm{new} - \textrm{old}}{\textrm{old}} \times 100 \%$

$\dfrac{22 - 56}{56} \times 100\% \approx -60.7\%$

Answer: -61%

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3 years ago

The altitude drawn to the hypotenuse of a right triangle divides the hypotenuse into segments such that their lengths are in rat

Zanzabum

In geometry, it would be always helpful to draw a diagram to illustrate the given problem.

This will also help to identify solutions, or discover missing information.

A figure is drawn for right triangle ABC, right-angled at B.

The altitude is drawn from the right-angled vertex B to the hypotenuse AC, dividing AC into two segments of length x and 4x.

We will be using the first two of the three metric relations of right triangles.

(1) BC^2=CD*CA (similarly, AB^2=AD*AC)

(2) BD^2=CD*DA

(3) CB*BA = BD*AC

Part (A)

From relation (2), we know that

BD^2=CD*DA

substitute values

8^2=x*(4x) => 4x^2=64, x^2=16, x=4

so CD=4, DA=4*4=16 (and AC=16+4=20)

Part (B)

Using relation (1)

AB^2=AD*AC

again, substitute values

AB^2=16*20=320=8^2*5

=>

AB

=sqrt(8^2*5)

=8sqrt(5)

=17.89 (approximately)

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3 years ago

There are 14 apples in a basket. 6 of these apples are green. the rest of them are red.

kobusy [5.1K]

8:14 is ratio to red to all apples
8:6 is the ratio to green apples

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2 years ago

Using these coordinates, find the slope. (0, -6), (3, -2)

seropon [69]

Answer:

The slope between the points (0, -6) and (3, -2) will be:

$m=\frac{4}{3}$

Step-by-step explanation:

Given the points

(0, -6)

(3, -2)

The slope between the points (0, -6) and (3, -2) will be:

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(0,\:-6\right),\:\left(x_2,\:y_2\right)=\left(3,\:-2\right)$

$m=\frac{-2-\left(-6\right)}{3-0}$

$m=\frac{4}{3}$

Therefore, the slope between the points (0, -6) and (3, -2) will be:

$m=\frac{4}{3}$

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3 years ago

The measure of an exterior angle of a regular polygon is 15 degrees. What is the sum of the measures of the interior angles of t

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The measurement of all interior angles of any polygon is 360 degrees

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