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REY [17]
2 years ago
10

Simplify a - {5b - [a - (3b - 2c) + c - (a - 2b - c)]}.

Mathematics
2 answers:
densk [106]2 years ago
8 0
Asking the Math Gods...


= a-6b+4c


Allushta [10]2 years ago
3 0

Answer:

a-6b+4c

Step-by-step explanation:

a-{5b-[a-(3b-2c)+c-(a-2b-c)]}

a-{5b-[a-1(3b-2c)+c-1(a-2b-c)]}

a-{5b-[a+(-3b+2c)+c+(-a+2b+c)]}

a-{5b-[a-3b+2c+c-a+2b+c]}

a-{5b-[-b+4c]}

a-{5b+[b-4c]}

a-{5b+b-4c}

a-{6b-4c}

a+{-6b+4c}

a-6b+4c

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Find an equation in standard form for the hyperbola with vertices at (0, ±6) and foci at (0, ±9).
Dvinal [7]
<span>For given hyperbola:
center: (0,0)
a=7 (distance from center to vertices)
a^2=49
c=9 (distance from center to vertices)
c^2=81
c^2=a^2+b^2
b^2=c^2-a^2=81-49=32
Equation of given hyperbola:


..
2: vertices (0,+/-3) foci (0,+/-6)
hyperbola has a vertical transverse axis
Its standard form of equation:  , (h,k)=(x,y) coordinates of center
For given hyperbola:
center: (0,0)
a=3 (distance from center to vertices)
a^2=9
c=6 (distance from center to vertices)
c^2=36 a^2+b^2
b^2=c^2-a^2=36-9=25
Equation of given hyperbola:
</span>
4 0
2 years ago
Tony can cycle a distance of 9 5/6 miles in 3/5 hours. What is his unit rate
Eva8 [605]

Answer:

95/6

3/5

Step-by-step explanation:

3 0
2 years ago
45) lí the midpoint of AB is (4,3) and point A has coordinates (-2,6),
sweet [91]
Midpoint has a formula x plus x2 divided by 2 and vice versa for y
So to solve you need to fill in numbers
You can replace x with negative 2 since you know that the coordinates for point A are -2,4
Solve to get 10
And vice versa for the y coordinate you solve the filled in equation to get 0
Your end result is 10,0
3 0
3 years ago
PLEASE HELP ME ( MULTIPLE CHOICE)!!
Anton [14]

Answer:

D

Step-by-step explanation:

an undefined slope has the same x value no matter what y value it has, therefore, D

(please rate and thank)

4 0
3 years ago
Q: A is 8km due north of phone mast B. C is 9.5km due west of phone mast B. Calculate the distance AC
Evgen [1.6K]

Answer:

AC = 12.4 km (nearest tenth)

Step-by-step explanation:

AC can be calculated by using Pythagorean Theorem.

Thus:

AC² = AB² + BC²

Plug in the values

AC² = 8² + 9.5²

AC + √{154.25)

AC = 12.4 km (nearest tenth)

7 0
2 years ago
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