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Mashcka [7]
3 years ago
8

Can someone please help me I have a few more also that I need help with.

Mathematics
1 answer:
pychu [463]3 years ago
3 0

Answer:

77

Step-by-step explanation:

Please mark as brainliest. I'm happy to help

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Which pair of words describes this system of equations? 3y=9x+6 2y−6x=4?
deff fn [24]
No answers

parallel lines

same slope

3 0
3 years ago
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Use De Morgan's laws to write negations for the statement. Sam is an orange belt and Kate is a red belt.
iVinArrow [24]

Answer:

C. Same is not an orange belt and Kate is not a red belt.

Step-by-step explanation:

A negation is an operation that "takes a statement and changes it to a statement whose true or false value is opposite". For example, if I were to say 2 + 2 = 4, the negation would be that 2 + 2 ≠ 4.

So, if Sam is an orange belt and Kate is a red belt, the negation is C. Same is not an orange belt and Kate is not a red belt.

Hope this helps!

5 0
4 years ago
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Please help me! 20 points!
TEA [102]

Answer:

12 1/4 or (Decimal: 12.25)

Step-by-step explanation:

(3 1/2) (3 1/2)

= 7/2 (3 1/2)

= 7/2 (7/2)

= 49/4

= 12 1/4

   I hope I helped you!!

8 0
3 years ago
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Which statement is an example of the distributive property?
Alex777 [14]

Answer:

3(2+15)= 3(2) + 3(15)

Step-by-step explanation:

4 0
3 years ago
As Mercury revolves around the sun, it travels at a rate of approximately miles per second. Convert this rate to kilometers per
Artist 52 [7]

Answer:

Step-by-step explanation:

There are a lot of conversion factors involved in this question.

First of all the radius of Mercury's orbit is 0.4 times that of the earth. The earth's distance from the sun is about 93 million miles. So Mercury's distance or radius is 93 * 0.4 = 37.2 million miles.

The circumference = 2 * pi * r

The circumference = 6.28 * 37200000 = 233616000  miles

This is accomplished in 88 days.

88 days [24 hours/day] * [3600 sec / hour] = 7603200 seconds

88 days = 7603200 second

Rate of travel = miles / second

Rate of travel = 233616000 / 7603200

Rate of travel = 30.726 miles / second

This number was not given so I had to derive it. The official number does not disagree a great deal from this number. It just depends on what constants you use.

1 mile = 1.6 km

30.725 miles = x           Cross multiply

x = 1.6 * 30.725

x = 49.16 km/ second

I cannot go any further because you have not provided any givens. The answers do vary quite a bit because I have assumed that Mercury's orbit is a circle. It really is not. It is more like an ellipse.  

The official speed in km/sec = 47 which means the answer I have given is very close. A more accurate answer would require that you put the numbers in the blanks that you were given.

7 0
3 years ago
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