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podryga [215]
2 years ago
13

17/21 - (2/7 + 1/7) Please solve!!

Mathematics
1 answer:
Karolina [17]2 years ago
3 0

Answer:

8/21

Step-by-step explanation:

17/21 - (2/7 + 1/7)

= 17/21 - ( 3/7)

= 17/21 - (3×3/7×3)

= 17/21 - 9/21

= 8/21

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Which polynomial correctly combines the like terms and expresses the given polynomial in standard form? 8mn5 – 2m6 + 5m2n4 – m3n
MaRussiya [10]

Answer:

-6m^{6}+n^{6}+7mn^{5}+14m^{2}n^{4}-5m^{3}n^{3}

Step-by-step explanation:

given polynomial is:

8mn^{5}-2m^{6}+5m^{2}n^{4}-m^{3}n^{3}+n^{6}-4m^{6}+9m^{2}n^{4}- mn^{5}-4m^{3}n^{3}

write similar terms together,

-2m^{6}-4m^{6}+n^{6}+8mn^{5}-mn^{5}+5m^{2}n^{4}+9m^{2}n^{4}-m^{3}n^{3}-4m^{3}n^{3}

-6m^{6}+n^{6}+7mn^{5}+14m^{2}n^{4}-5m^{3}n^{3}

Hence, polynomial in standard form -6m^{6}+n^{6}+7mn^{5}+14m^{2}n^{4}-5m^{3}n^{3}

8 0
3 years ago
Please help me and answer all three parts.
9966 [12]

Answer:

A. 13

B. 58

C. 122

I hope this is correct and im sorry if it isn't.

7 0
3 years ago
Which of the following points is shown in the graph below?
djverab [1.8K]

Answer:

Step-by-step explanation:

Comment

  • Only the x is minus. You know this because if you rotate the x axis 90 degrees clockwise, the plus axis will be on your right and the minus part of the axis on your left.
  • The other 2 (y and z) are positive.
  • All answers give - 4 in their choices. You are not helped much by -4
  • y is on your left right now. That is the plus direction so y = 5
  • z is 6 units up, so it is positive.

Answer (-4,5,6)

B

4 0
2 years ago
Using the following diagram below, please answer the following:
Colt1911 [192]
The radius of the circle is 15 cm,
The diameter of the circle is 30 cm,
The circumference of the circle is 94.248 cm,
The area of the circle is 706.86 cm^2

The radius is given in the diagram as half the circle, which is 15 cm.

The diameter is double the radius because the diameter measures the circle from edge to edge, so 15•2=30 cm.

The circumference of the circle is 2•3.14•r=C,
2•3.14=6.28, 6.28•15= 94.248 cm.

The area of the circle is 3.14•r^2, so the radius squared is 225 (15•15) and 225•3.14=706.86 cm squared :)
7 0
3 years ago
HELP!!! WILL MARK BRANLIEST!! What is the equation of the graph below?​
KATRIN_1 [288]

Answer:

c

Step-by-step explanation:

I plugged the equations into Desmos Graphing Calculator and C matched

Hope This Helps!     Have A Nice Day!!

4 0
3 years ago
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