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3 years ago

15

A friend has a 78% average before the final exam for a course. That score includes everything but the final, which counts for 20

% of the course grade.
What is the best course grade your friend can earn?

1 answer:

Karolina [17]3 years ago

4 0

Answer:

98%

Step-by-step explanation:

im not real sure but i think thats it if im wrong srry

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What is the area of a rectangle with two sides of length 1 and diagonal length 2?

gtnhenbr [62]

Other two sides = x

Then, x² + 1² = 2²

x² = 4 - 1
x = √3

Now, Area = Length * Width
A = 1 * √3
A = √3

In short, Your Answer would be: √3 or 1.73

Hope this helps!

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3 years ago

If 12 is replaced with 3 in the following set, what will happen to the value of the interquartile range? 28, 45, 12, 34, 36, 45,

crimeas [40]

The answer would be (it would stay the same)

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3 years ago

Find the area of the shaded region.

luda_lava [24]

Answer:

The area of the shaded region is $11.6\ cm^{2}$

Step-by-step explanation:

we know that

The area of the shaded region is equal to the area of the sector of circle of angle 68.9 degrees minus the area of the isosceles triangle

step 1

Find the area of sector of the circle

The area of circle is equal to

$A=\pi r^{2}$

assume

$\pi =3.14$

$r=9.28\ cm$

substitute

$A=(3.14)(9.28)^{2}$

$A=270.41\ cm^{2}$

Remember that the area of a circle subtends a central angle of 360 degrees

so

using proportion Find out the area of a sector with a central angle of 68.90 degrees

Let

x -----> the area of a sector

$270.41/360=x/68.90\\\\x=68.90*270.41/360\\\\x=51.75\ cm^{2}$

step 2

Find the area of the isosceles triangle

Applying the law of sines

The area is equal to

$A=(1/2)r^{2}sin(68.90)$

we have

$r=9.28\ cm$

substitute

$A=(1/2)(9.28)^{2}sin(68.90)=40.17\ cm^{2}$

step 3

Find the area of the shaded region

$51.75-40.17=11.58\ cm^{2}$

Round to the nearest tenth

$11.58=11.6\ cm^{2}$

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3 years ago

The expression 3.3m gives the number of feet in m (meters). Use the expression to find the number of feet that is equivalent to

Deffense [45]

3.3m
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3 years ago

What is 120 as a decimal

Agata [3.3K]

120.0 hope his was helpful

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