2 years ago

I need help on 4 & 5 pls

Mathematics

1 answer:

Allushta [10]2 years ago

7 0

What do you need help with? it helps us to know the question!

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Cuántas diagonales tendría una figura de 8 lados?

Oduvanchick [21]

Answer: 20 diagonales

Step-by-step explanation:

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2 years ago

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2) A furlong is 1/8 of a mile. What part of a mile is 4 furlongs?

Ludmilka [50]

Answer:

1/2 mile

Step-by-step explanation:

(1/8)*4 = 1/2 mile

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3 years ago

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What is the surface area of the sphere?

Fantom [35]

Answer:

<em>The surface area of the sphere is 314 mi².</em>

Step-by-step explanation:

According to the given diagram, the diameter of the sphere is 10 mi.

If the radius is $r$ , then diameter $=2r$

So....

$2r=10\\ \\ r=\frac{10}{2}= 5$

<u>Formula for the surface area of a sphere</u>: $A_{S}= 4\pi r^2$

Plugging the value of $r$ into this formula, we will get...

$A_{S}=4\pi(5)^2\\ \\ A_{S}=4\pi(25)\\ \\ A_{S}=4(3.14)(25)\ \ [Using\ \pi=3.14]\\ \\ A_{S}=314$

So, the surface area of the sphere is 314 mi².

7 0

3 years ago

5) Today's temperature is 10 degrees. Yesterday's temperature was -3. What is

Troyanec [42]

Answer:

Step-by-step explanation:

10--3=

So is 13

But not sure

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2 years ago

What is the volume of a pyramid with a base area of 10 square inches and height of 9inches

Akimi4 [234]

To find the base area of a pyramid, you can use the equation:

volume = base area × height

volume = 10 × 9

volume = 90 cubed inches

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2 years ago