3 years ago

If BE=6.25 calculate EC

Mathematics

1 answer:

Oksana_A [137]3 years ago

5 0

We need more information before doing this.
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30% of doctors on a hospital are female. if there are 780 doctors altogether, how many doctors are female ? round to the nearest

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30% as a decimal is 0.3

Multiply 780 by 0.3
780(0.3)=234 female doctors

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At the beginning of an experiment, there are 400 grams of contaminants. Each hour, three-fourths of the contaminants are filtere

snow_tiger [21]

Answer:

thats 300 grams filtered out per hour

Step-by-step explanation:

so 4/4ths of 400 is 400 but taking 3/4ths is turning it too 100 grams

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2 years ago

What is the change in elevation from -6 km to -14 km?

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Step-by-step explanation:

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What is the area of the shaded portion of the circle?

SOVA2 [1]

Answer:

The first option is the correct one, the area of the shaded portion of the circle is

[/tex](5 \pi -11.6)ft^2[/tex]

Step-by-step explanation:

Let us first consider the triangle + the shadow.

The full area of the circle is the radius squared times pi, so

A= $(5 ft)^2 \cdot \pi \\25 ft^2 \cdot \pi$

Since $\frac{72^{\circ}}{360^{\circ}}=\frac{1}{5}$ , the area of the triangle + the shaded area is one fifth of the area of the whole circle, thus

$A_1=\frac{1}{5}25 ft^2 \cdot \pi\\ =5 ft^2 \cdot \pi$

If we want to know the area of the shaded part of the circle, we must subtract the area of the triangle from $A_1$ .

The area of the triangle is given by

$A_{triangle}=\frac{1}{2}\cdot (2.9+2.9)ft \cdot 4 ft\\= 11.6 ft^2$

Thus the area of the shaded portion of the circle is

$A_1-A_{triangle}=5 \pi ft^2-11.6ft^2\\= (5 \pi -11.6)ft^2$

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2 years ago

Pierce wishes to purchase a municipal bond with a par value of $500 from Arapahoe County, and he is trying to decide which broke

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