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Nastasia [14]
3 years ago
15

a student scored 78 and 95 on his first two quizzes. Use a compound inequality to find the possible values for a third quiz scor

e that would give him an average between 80 and 90
Mathematics
1 answer:
kicyunya [14]3 years ago
5 0
He gets an average between 80 and 90
 It is between these two values
 So it could be 80 or higher but it must be 90 or belowe so it can be equal to 80 or above and it can be equal to 90 or below
 This gives two inequalities 80 ≤ x and x ≤ 90
 This can be written as 1 inequality 80 ≤ x ≤ 90
 ≤ this means less than or equal to the one that points the opposite way would be greater than or equal to think of it as a number line pointing right is positive meaning the numbers get bigger, getting greater pointing left is getting smaller so it gets less and less 
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Answer:

1 in. is the answer.

Step-by-step explanation:

Solution: A Rectangle ABDE in which DE=4 inches and BD= 6 inches

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2. Second along the Length, Side having length 4 inches,i.e rotated about a line CF, cylinder Y is created.

Radius of cylinder Y= 4/2= 2 inches

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Diagram shown below of both the cases:

7 0
3 years ago
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Convert ( 4 , 300 ∘ ) to rectangular form.
Rasek [7]

The rectangular representation of the polar point of (4 , 300) is (2,- 2√3)

According to the statement

we have given a coordinates of the rectangle and we have to find the polar coordinates.

So, For this purpose, we know that the

We Use the conversion formulas to convert from polar coordinates to rectangular coordinates which are

x = rcosθ

y = rsinθ

Substitute the given values in it then

x=(4)cos(300)

y=(4)sin(300)

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant.

x=(4)cos(60) -(1)

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And then

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x=(4)(1/2)

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and

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Replace (3) with (1) and (4) with (2)

then it becomes

x = 2 and y= - 2√3

The rectangular representation of the polar point of (4 , 300) is (2,- 2√3)

Learn more about polar coordinates here

brainly.com/question/4522672

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6 0
1 year ago
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The fourth option should do it.
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Answer:

solution. :

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