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3 years ago

Please Help! I'm Desperate.

Mathematics

1 answer:

KATRIN_1 [288]3 years ago

6 0

My teacher always told me if you dont know the answer choose c.

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The lemonade cooler at the class picnic holds 12.5L. One liter is approximately equal to 0.26 gallons. How many gallons does the

lora16 [44]

Answer: There are 3.25 or 3 1/4 gallons in one cooler

Step-by-step explanation:

If one liter is appx .26 gallons we need to multiply the number of liters there are. So 12.5 times .26 to get the answer 3.25

4 0

4 years ago

A 10-foot ladder is leaning against a vertical wall. If the bottom of the ladder is being pulled away from the wall at the rate

Alex777 [14]

Answer:

The area is changing at 15.75 square feet per second.

Step-by-step explanation:

The triangle between the wall, the ground, and the ladder has the following dimensions:

H: is the length of the ladder (hypotenuse) = 10 ft

B: is the distance between the wall and the ladder (base) = 6 ft

L: the length of the wall (height of the triangle) =?

dB/dt = is the variation of the base of the triangle = 9 ft/s

First, we need to find the other side of the triangle:

$H^{2} = B^{2} + L^{2}$

$L = \sqrt{H^{2} - B^{2}} = \sqrt{(10)^{2} - B^{2}} = \sqrt{100 - B^{2}}$

Now, the area (A) of the triangle is:

$A = \frac{BL}{2}$

Hence, the rate of change of the area is given by:

$\frac{dA}{dt} = \frac{1}{2}[L*\frac{dB}{dt} + B\frac{dL}{dt}]$

$\frac{dA}{dt} = \frac{1}{2}[\sqrt{100 - B^{2}}*\frac{dB}{dt} + B\frac{d(\sqrt{100 - B^{2}})}{dt}]$

$\frac{dA}{dt} = \frac{1}{2}[\sqrt{100 - B^{2}}*\frac{dB}{dt} - \frac{B^{2}}{(\sqrt{100 - B^{2}})}*\frac{dB}{dt}]$

$\frac{dA}{dt} = \frac{1}{2}[\sqrt{100 - 6^{2}}*9 - \frac{6^{2}}{\sqrt{100 - 6^{2}}}*9]$

$\frac{dA}{dt} = 15.75 ft^{2}/s$

Therefore, the area is changing at 15.75 square feet per second.

I hope it helps you!

5 0

3 years ago

you buy rice at 0.71 a pound one batch of fried rice requires 10 lb of rice how much does a rice for one batch cost

Drupady [299]

x ⇒ 3 · x = ($0.71)(3)= $2.13.

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3 years ago

Please help me answer question number 5

lara31 [8.8K]

Answer:

it is the 3rd one

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Find the exponential equation, y equals a times b to the x power (y= a(b^x)), of the exponential function containing the points

guajiro [1.7K]

Y=4 (6^x)

comment if you want me to explain it

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3 years ago