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3 years ago

PLSSSSSSS HELPPPPPPPP AS SOOON AS YOU CANNN

Mathematics

1 answer:

ludmilkaskok [199]3 years ago

4 0

Answer:

238.64 cm

Step-by-step explanation:

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Find the areas of the trapezoids

Gennadij [26K]

Answer:

figure 1 - 10.5 unit^2

figure 2 - 12 unit^2

Step-by-step explanation:

figure 1

1. find the area of the rectangle

3*2 = 6 unit^2

2. find the area of the triangle

(3*3)/2 = 4.5 unit^2

3. add the area of the rectangle and the area of the triangle together. The sum would be the area of the trapezoid.

6 + 4.5 = 10.5 unit^2

figure 2

1. find the area of the rectangle

2*4 = 8 unit^2

2. find the area of both triangles

(1*4)/2 = 2 unit^2

3. add the area of the rectangle and the area of both triangles together. The sum would be the area of the trapezoid.

8 + 2 + 2 = 12 unit^2

4 0

3 years ago

Please please help me out!!!!!!!!!

anyanavicka [17]

Answer:

y = $\frac{3}{4}$ x + $\frac{1}{4}$

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 3, - 2) and (x₂, y₂ ) = (5, 4) ← 2 points on the line

m = $\frac{4+2}{5+3}$ = $\frac{6}{8}$ = $\frac{3}{4}$ , thus

y = $\frac{3}{4}$ x + c ← is the partial equation of the line

To find c substitute either of the 2 points into the partial equation

Using (5, 4), then

4 = $\frac{15}{4}$ + c ⇒ c = 4 - $\frac{15}{4}$ = $\frac{1}{4}$

y = $\frac{3}{4}$ x + $\frac{1}{4}$ ← equation of line

8 0

3 years ago

Read 2 more answers

Martin sells cars. He earns $100 per day, plus any commission on his sales. His daily salary s in dollars depends of the amount

galben [10]

Answer:

s=100+c

Step-by-step explanation:

if he ears 100 dollars a day plus any commission then you would write it as the equation above

3 0

3 years ago

It takes Andrew 720 seconds to take a shower. He spends an additional 420 seconds eating breakfast.

krok68 [10]

Answer:

Andrew takes for a shower = 720 sec

1 min =60sec

720sec=12min

Andrew takes additional min for breakfast =420 sec

420 sec = 7min

time andrew take for both = 12+7

=19 min

Step-by-step explanation:

4 0

3 years ago

The amount of water remaining in the pool is decreasing at a rate of

Gnom [1K]

The average rate of change has a relationship with slopes. In this way, we can write the slope of a line as follows:

$Slope=\frac{Change \ y}{Change \ x}$

As you can see in the graph, we have a straight line whose slope is negative. This slope as we have said is the Average Rate of Change we need to find. So, to find the slope of this line we must choose two points and compute the following formula:

$ARC=Slope=\frac{f(x_{2})-f(x_{1})}{x_{2}-x_{1}}$

The two points can be:

$P_{1}(0,40) \ and \ P_{2}(10,0)$

So:

$ARC=\frac{0-40}{10-0} \\ \\ \therefore \boxed{ARC=-4 \ gallons \ per \ minutes}$

Finally, the conclusion is:

The amount of water remaining in the pool is decreasing at a rate of 4 gallons per minute

3 0

3 years ago