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atroni [7]
3 years ago
13

Please answer correctly and quickly all question

Mathematics
1 answer:
Papessa [141]3 years ago
5 0

Answer:

4) c

6) a, b

7) a

8) b, c

10) I'm not sure but I believe it is C.

Step-by-step explanation:

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In a group of dogs and their owners, there are exactly 20 heads and 64 legs. How many dogs are in the group
Juliette [100K]

Answer:

If we assume that everyone in the group is an owner, we would have

20*2=40 legs.

64-40=24 legs

Therefore, we need 24 more legs.

These 24 additional legs can be made from the difference of legs between the owners and dogs.

In this case, dogs have 4-2=2 more legs than an owner.

24 ÷ 2 = 12.

There are 12 dogs in the group.

8 0
3 years ago
How do I solve this?
Artemon [7]

a^2 - b^2 = (a + b)(a - b)

In this case

49x^4y^2 - 4z^2

= (7x^2y)^2 - (2z)^2

= (7x^2y + 2z)(7x^2y - 2z)

Factors are (7x^2y + 2z) and (7x^2y - 2z)

Answer:

D) 7x^2y + 2z

8 0
2 years ago
Easy question easy points
Deffense [45]

Answer:

y = - 4x - 8

Step-by-step explanation:

From the graph we get :

slope = (-8)/2 = -4

y-intercept = -8

8 0
3 years ago
Read 2 more answers
Trigonometry help please show work. Due soon please help
nexus9112 [7]

Answer:

Step-by-step explanation:

5 0
2 years ago
Can someone help me please
malfutka [58]

Answer:

-2.5

Step-by-step explanation:

We need to find the slope using and two points

m = ( y2 -y2)/(x2-x1)

    = ( 25-20)/(-10 - -8)

    = 5/( -10+8)

   = 5/-2

  - 2.5

5 0
3 years ago
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