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2 years ago

Help? also explain pls

Mathematics

2 answers:

NikAS [45]2 years ago

7 0

Answer:

164 ft²

Step-by-step explanation:

We can divide the figure into a rectangle and a trapezoid. Find their areas and add them up.

Area of the rectangle

= 8×16

= 128 ft²

Area of the trapezoid

= (2+8+2)×6 ÷2

= 36 ft²

Total area of the yard

= 128+36

= 164 ft²

natulia [17]2 years ago

5 0

Answer:

158ft²

Step-by-step explanation:

Break it up!

Find the area of the three smaller shapes and add them together!

12+18+128= 158

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2 years ago

Combine like terms. y + 3 + 9(y + 5) =

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3 years ago

Read 2 more answers

A candle burned at a steady rate. After 33 minutes, the candle was 11.2 inches tall. Eighteen minutes later, it was 10.75 inches

Amiraneli [1.4K]

Answer:

9.025 inches

Step-by-step explanation:

Let the length be represented by:

$L = mt+L_0$

Where $L$ is the length of candle at time $t$

$m$ is the rate at which the candle is burning.

And $L_0$ is the initial length of the candle.

As per the question statement, let us put the given values in the equation.

$11.2 = m\times 33 + L_0 .... (1)\\10.75 = m\times 51+L_0 ..... (2)$

Subtracting (1) from (2):

$0.45 = -18m\\\Rightarrow m = -0.025$

Putting the value of $m$ in the equation (1):

$11.2 = -0.025 \times 33+L_0\\\Rightarrow L_0 = 12.025$

Therefore, the equation becomes:

$L = -0.025t + 12.025$

Now, we have to find the height of candle after 2 hours.

2 hours mean 120 minutes.

$L = -0.025 \times 120 + 12.025\\\Rightarrow L = 9.025\ inches$

Therefore, the height of candle is 9.025 inches.

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2 years ago