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gavmur [86]
3 years ago
13

You have a homework grade of 88, four test grades that are 87, 85, 86, 89, and a final exam grade of 88. The table shows how the

se grades are weighted to calculate your course average. Assignment Percentage Homework 15% Tests 55% Final Exam 30%
Mathematics
1 answer:
sveta [45]3 years ago
4 0

Step-by-step explanation:

homework and test grades

88+87+85+86+89/5 is 87% average

then 15+87+55+30/4is 46.74 which round up to an average of 47% as a whole for the course

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Find the length of x. Assume the triangles are similar.
Katyanochek1 [597]

Triangles are similar and only differ in size meaning they are dilated

So first we have to find the scale factor of dilation (by how much the smaller triangle got bigger)

Find scale factor:

2.4a=4.8

z=2

Find x:

we multiply the original side of the small side with the scale factor of 2

2.8(2)=x

5.6=x

So, x=5.6

8 0
2 years ago
Which graph represents y=³√x ?
QveST [7]

Answer:

1 / (3 - √x³)

Step-by-step explanation:

∛x = x^1/3

^1/3 means the exponent is 1/3

then the derivative is:

d/dx ∛x = d/dx x~1/3 = 1/3*x~(1/3 - 1) = 1/3 x~-2/3 = 1/3 * (1/√x³)

= 1 / (3*√x³)

Hope it helps.

4 0
2 years ago
A chord of a circle is 66cm long, it is 56 cm from the center of the circle. What is the radius of the circle?
ser-zykov [4K]

Answer:

radius = 65 cm

Step-by-step explanation:

(See image attached for better comprehension)

To find the value of the radius, we just need to draw a triangle, where one side is half of the chord (the distance from the chord to the center creates a point that divides the chord in two equal segments), other side is the distance from the chord to the center, and the hypotenusa will be the radius.

So, using Pythagoras' theorem, we have that:

r^2 = 56^2 + 33^2

r^2 = 4225

r = 65 cm

4 0
3 years ago
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enyata [817]

Answer:

$6

Step-by-step explanation:

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4 0
3 years ago
Darla is able to drive her car 37.5 miles per gallon of gasoline. Write the
kupik [55]
3.2 gallons
You see what you do is you divide 120 by 37.5 and you will get the number of gallons
5 0
3 years ago
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