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aliina [53]
2 years ago
13

In a science test, Jamie solved 42 correct and 18 incorrect answers. What is the percentage of correct question?

Mathematics
2 answers:
uysha [10]2 years ago
4 0
It would have to be B
Slav-nsk [51]2 years ago
3 0

Answer:The answer is C.

Step-by-step explanation:

There are 60 questions total. (42+18)

You just turn the answers into decimals (.80, .75, .70, .40) and you multiply it by the total number of questions(60)

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Triss [41]

Answer:

1/3(3.14)2^2(24)

Step-by-step explanation:

The volume of a cone is given by the formula;

1/3πr³

Considering the radius is 2 cm and the height is 24 cm (4 times the diameter).

Therefore;

Volume = 1/2(3.14)2²(24)

            This can be used to calculate the volume.

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3 years ago
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2 years ago
Rachel spent $300 more than Samuel. If Rachel spent $743, then how much did Samuel spend?
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Answer:

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Step-by-step explanation:

743-300=443.

Hope this helps you :)

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3 years ago
Given circle X with radius 5 units and chord AB with length 8 units, what is the
kvv77 [185]

Answer:  The correct option is (B) 3.

Step-by-step explanation:  We are given a circle X with radius 5 units and chord AB with length 8 units.

We are to find the length of segment XC that bisects chord.

We know that the line segment drawn from the center of a circle to the midpoint of a chord is perpendicular to the chord.

So, in the given circle X, the segment XC is perpendicular to chord AB. Then, triangle  XCB will be a right angled triangle with hypotenuse XB.

Since XC bisects AB, so the length of BC will be

BC=\dfrac{AB}{2}=\dfrac{8}{2}=4~\textup{units}.

And, radius, XB = 5 units.

Using Pythagoras theorem in triangle XCB, we have

XB^2=XC^2+BC^2\\\\\Rightarrow XC^2=XB^2-BC^2\\\\\Rightarrow XC^@=5^2-4^2\\\\\Rightarrow XC^2=9\\\\\Rightarrow XC^2=3^2\\\\\Rightarrow XC=3.

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3 0
3 years ago
What is x+2y=-4 in slope intercept form
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3 0
2 years ago
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