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riadik2000 [5.3K]

3 years ago

5

If you take a class and have three marking periods in the class and in the first period your average grade was a 85.56 the secon

d marking period your average was a 60.57 and then for the final marking period your average was a 63.63 what will be your overall average?

1 answer:

Talja [164]3 years ago

3 0

69.92 when you add them all up and divide it you get 69.92

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The sum of two numbers is 45 and the difference is 3. What are the numbers?

AVprozaik [17]

Answer:

24 and 21 are the two numbers

Step-by-step explanation:

let n represent the unknown number

let n-3 represent the second unknown number

n+n-3 = 45

2n-3=45

2n=45+3

2n=48

n=48/2

n=24

n-3=21

CHECK: 24+21=45

.˙. the first number is 24 and the second number with a difference of 3 is 21

5 0

3 years ago

I literally need help with this question-<br><br> It’s ASA congruence btw

ryzh [129]

Answer:

AB and DE

Step-by-step explanation:

Look closely and you can notice whats the difference.

OK

4 0

3 years ago

An American green tree frog tadpole is about 0.00001 kilometer in length when it hatches. Write this decimal as a power of 10

galben [10]

1.e-50
you multiply .00001 by itself 10 times<span />

8 0

3 years ago

HELP FAST PLEASE!!!

Alisiya [41]

Answer:

$y = -0.75x + 9.5$

Step-by-step explanation:

Equation of a circle is given as :

$(x-a)^{2} + (y-b)^2 = r^{2} \\(x-6)^{2} + (y-5)^2 = 4^{2}\\x^{2} - 12x + 36 + y^{2} -10y + 25 = 16\\x^{2} - 12x + y^{2} -10y + 45 = 0\\$

Take the derivative of the above with respect to x

$2x - 12 + 2y dy/dx - 10 dy/dy = 0\\\frac{dx}{dy} = \frac{6 - x}{y-5} \\At (2,8) dy/dx = (6-2)/(8-5) = 4/3\\dy/dx = 4/3\\The slope of the tangent to the circle, m = \frac{-1}{dy/dx} \\m = \frac{-1}{4/3}\\m= -0.75$

The equation of the tangent is given by :

$y - y_{1} = m(x - x_{1})\\ y - 8 = -0.75(x - 2)\\y - 8 = -0.75x + 1.5\\y = -0.75x + 9.5$

8 0

3 years ago

Read 2 more answers

Is circumference cubed, squared, or just left alone?

irakobra [83]

Circumference is a linear distance. So if the diameter is in feet, then the circumference is also in feet (not square feet or cubic feet)

-------------------------------------

Example:

Let's say we had a circle with diameter d = 10 feet

The circumference is approximately...

C = pi*d

C = 3.14*10

C = 31.4

The circumference is roughly 31.4 feet

The circumference is essentially the distance around the circle's edge. We can use a flexible ruler or a string to help measure out this distance, or you can imagine laying the circle's edge to be placed along a straight line, which is another way to help measure the perimeter.

5 0

3 years ago