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3 years ago

15

sunlight can penetrate a certain Lake to the depth of fifteen meters the lake is five and a half times deeper than the depth of

which light can penetrate in meters how deep is the lake

1 answer:

gizmo_the_mogwai [7]3 years ago

4 0

Fifteen times Fifteen point Five equals 82.2 so the answer would be 82.2 Meters

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PLEASE HELP! What is the area of triangle BCD in exact form? 35 points!

vampirchik [111]

This is a 30-60-90 triangle. The short leg is given to us as 5

The long leg is equal to sqrt(3) times the short leg

long leg = sqrt(3)*(short leg)
long leg = sqrt(3)*5
long leg = 5*sqrt(3)

The base is 5. The height is 5*sqrt(3)
b = 5
h = 5*sqrt(3)

Use this to find the area
A = b*h/2
A = 5*5*sqrt(3)/2
A = 25*sqrt(3)/2
which is the exact area in terms of a radical

You can write it out as $\frac{25\sqrt{3}}{2}$

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3 years ago

HELP PLEASE<br> Find the outlier of the set of data: 20, 23, 19, 25, 4, 18, 26

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Answer:

I think is the 23

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3 years ago

5+2(w-6) how do i rewrite as addition and solve?

Firdavs [7]

Answer:

$2w - 7$

Step-by-step explanation:

1) Expand by distributing terms.

$5 + 2w - 12$

2) Collect like terms.

$2w + (5 - 12)$

3) Simplify.

$2w - 7$

<em><u>Therefor</u></em><em><u>,</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>2w</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>7</u></em><em><u>.</u></em>

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3 years ago

Write the slope intercept form of the equation of the line through the given point

ozzi

Answer:

y = $-\frac{3}{4}$ x

Step-by-step explanation:

slope-intercept form: y = mx + b

Given: slope(m) = $-\frac{3}{4}$ , point (4, -3)

We already have the value of m, but we need to find the value of b. To do this, input the given values of the slope and the point into the equation:

-3 = $-\frac{3}{4}$ (4) + b

Solve for b:

-3 = $-\frac{3}{4}$ (4) + b

-3 = -3 + b

0 = b

The value of b is zero. We can now write the equation:

y = $-\frac{3}{4}$ x + 0

y = $-\frac{3}{4}$ x

The equation written in slope-intercept form is: y = $-\frac{3}{4}$ x

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3 years ago

To make 1 1/2 dozen muffins, a recipe uses 3 1/2 cups of flour. How many cups of flour are needed for every dozen muffins made?

ch4aika [34]

Ratio and proportion

convert to inproper fracton first

1 and 1/2=1+1/2=2/2+1/2=3/2

3 and 1/2=3+1/2=6/2+1/2=7/2

3/2dozen=7/2cups
times 2 both sides
3dozen=7cups
divide by 3 both sides
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5 0

3 years ago

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