3 years ago

Consider the following figure.

Mathematics

1 answer:

Karolina [17]3 years ago

4 0

Answer:

BD = 16

Step-by-step explanation:

By applying mean proportional theorem in the given right triangles,

$\frac{AD}{BD}=\frac{BD}{CD}$

AD × CD = BD²

8 × 32 = BD²

BD = √256

BD = 16

Therefore, measure of side BD = 16 units.

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12345 [234]

Answer: $28.35\ minutes$

Step-by-step explanation:

Let be "x" the time in minutes a 150-pound person must walk at 4 mph to use at least 190 calories.

The amount of calories that a 150-pound person uses in 1 minute when walking at a speed of 4 mph is:

$Calories\ per\ minute=6.7$

Therefore, knowing this, we can write the following proportion:

$\frac{1}{6.7}=\frac{x}{190}$

Finally, we must solve for "x" in order to find its value.

Multiplying both sides of the equation by 190, we get this result:

$(190)(\frac{1}{6.7})=(\frac{x}{190})(190)\\\\x=28.35$

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3 years ago

You share a coin collection with a friend. You possess 44 of the coins and

vfiekz [6]

Answer:

Step-by-step explanation:

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3 years ago

A solid cylinder of radius 7cm is 10cm long.find it's total surface area

Anton [14]

Answer:

C. 238π cm^3.

Step-by-step explanation:

Surface area = 2 * area of the circular ends + area of the curved length

= 2π r^2 + 2π r* l

= 2 π 7^2 + 2π 7 * 10

= 98π + 140π

= 238π cm^3.

7 0

3 years ago

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Equations and Inequalities One-Pager

quester [9]

Could I see a picture cause not sure

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3 years ago

Can you please help me?

eduard

Answer:

sorry can't help didn't understand

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3 years ago