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3 years ago

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(a) Sodium chlorate crystals are easy to grow in the shape of cubes by allowing a solution of water and sodium chlorate to evapo

rate slowly. If V is the volume of such a cube with side length x, calculate when mm and explain its meaning.

1 answer:

evablogger [386]3 years ago

4 0

U have to solve it then right the equation down

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PLEASE HELP IM CONFUSED! Find what the measurements of angles a-c are and state the reason

nata0808 [166]

Answer:

<a = 90° (180-90 supplementary angle)

<b = 90° (180-90 supplementary angle)

<d = 48° (180-132 supplementary angle)

<e = 132° (opposite angle)

<c = 42° (interior angles of a triangle equal 180. 180-48-90=42)

Step-by-step explanation:

<a = 90° (180-90 supplementary angle)

<b = 90° (180-90 supplementary angle)

<d = 48° (180-132 supplementary angle)

<e = 132° (opposite angle)

<c = 42° (interior angles of a triangle equal 180. 180-48-90=42)

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3 years ago

Identify the percent of change as an increase or a decrease.<br><br>1/4 to 1/2

Leviafan [203]

Answer:

it decreases

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

For evey 8 wii games janet owned she had 7 ps3 games.what is the ratio of the Wii games to ps4 games

Ilia_Sergeevich [38]

wii games to ps3 games

8:7

8 0

3 years ago

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.

Leni [432]

F(x) = -x
f(x) = 1
f(x) = 2
f(x) = 3
f(x) = 2 − x
f(x) = 4
f(x) = x
Domain
Function Equation
1 ≤ x ≤ 2
arrowRight
0 < x ≤ 1
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3 < x ≤ 4
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8 0

3 years ago

What is the value of x?

Andrew [12]

<h3>Answer:</h3>

$x = 25$

<h3>Solution:</h3>

$\frac{40}{40+24} = \frac{x}{x +15} \\ \frac{40}{64} = \frac{x}{x +15} \\ \frac{5}{8} = \frac{x}{x +15} \\ 5(x +15) = 8x \\ 5x +75 = 8x \\ 75 = 3x \\ 25 = x$

<h3>Explanation:</h3>

Angle BDR is congruent to angle QDC because they share common angles. Angles BRD and QCD are congruent because lines BR and QC are <em>parallel</em> and line DR intersecting them creates <em>two corresponding angles</em>, BRD and QCD. Because of the reasons I mentioned, Triangles DBR and DQC are similar by Angle Angle Similarity Postulate and because these two triangles are similar they must share the same scaling factor of corresponding sides (example: $\frac{DQ}{DB}\\$ ). So $\frac{DQ}{DB} = \frac{DC}{DR}\\$ .

7 0

3 years ago