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Dmitrij [34]
3 years ago
10

Which pair of numbers is relatively prime? 49 and 56, 65 and 70, 90 and 91, 100 and 102

Mathematics
2 answers:
Sholpan [36]3 years ago
6 0
90 and 91 are relatively prime, the way they can be relatively prime is to have no factors in common-
90- 2x3x3x5
91- 7x13
ipn [44]3 years ago
5 0

Answer:

c. 90 and 91

Step-by-step explanation:

i just took the quiz

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Really need a definite correct answer on this
cluponka [151]
Third choice is correct hope I helped:3
6 0
2 years ago
What is 23% of 256? please help
Anastasy [175]
So first you need to turn the percent into a decimal. So 23% would be 0.23 because you divide 23 by 100 to turn it into a decimal. Now you multiply 0.32 and 256. So:

0.23 *256=58.88 

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7 0
3 years ago
Evaluate 3m-n when m=5 and n=1
Whitepunk [10]

Answer:

Basically that’s saying 3 • 5 - 1 which will equal 14

Step-by-step explanation:

3•5 = 15 - 1 = 14

7 0
2 years ago
the science department buys the equipment shown in the table. they bought all three items this year. in how many years will they
belka [17]

Answer:

20 years

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
1.The equation of line CD is (y−3) = − 2 (x − 4). What is the slope of a line perpendicular to line CD? 2.The equation of line A
gogolik [260]
So here's how to do it,
slope intercept form is y=mx+b
m is the slope, b is the y- intercept, X is your unknown variable.

you need to solve to get y by its self to get your slope.

for perpendicular lines flip the slope

ex 1, smy=2x+6 --- slope of a perpendicular line will be 1/2

ex 2, y=3/2+8 ---8 perpendicular lien would have a slope of 2/3

parallel lines have the same slope so any equation with with the same slope will be parallel if it has the same degree.

ex. y=2x+14 is parallel to y= 2x+56

slope can be found using the following formula if you have two sets of points on the same line

m= y2-y1 ÷ X2 - X1
5 0
2 years ago
Read 2 more answers
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