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olga2289 [7]
3 years ago
14

What is the answer when subtracting (-3y2-8)-(5y2+1)?

Mathematics
1 answer:
Alona [7]3 years ago
3 0

You have to distribute the minus sign to the second parenthesis, changing the sign of every term:

-3y^2-8-(5y^2+1) = -3y^2-8-5y^2-1 = -8y^2-9

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Describe and correct the error a student made in finding the midpoint cd with c(-4,5) and d(-1,-4).
Gnesinka [82]

Answer:

Step-by-step explanation:

The formula for finding the midpoint of two coordinates is expressed as;

M(X,Y) = (\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})

Given the coordinates c(-4,5) and d(-1,-4), x1 = -4, y1 = 5, x2 = -1 and y2 = -4.

For the X coordinate of the midpoint

X = x1+x2/2

X = -4+(-1)/2

X = -4-1/2

X = -5/2

X = -2.5

Similarly for Y:

Y = y1+y2/2

Y = 5+(-4)/2

Y = 5-4/2

Y = 1/2

Y = 0.5

Hence the midpoint coordinate of C(-4,5) and D (-1,-4) is (-2.5, 0.5)

5 0
3 years ago
What is the volume of the cone to the nearest cubic foot? (Use ​π = 3.14)
Goryan [66]
Brainliest answer,plz.......

4 0
3 years ago
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Which statement is true about the polynomial 3x?y2 - 5xy2 - 3x²y2 + 2x2 after it has been fully simplified?
Sladkaya [172]
4 terms, degree of 2

The terms is the amount of “numbers” you have, which is 4
The degree is the highest power, which is x^2
6 0
3 years ago
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Naglakad si Ruben ng 900 sentimetro samantalang si Jaime ay naglakad ng
Gelneren [198K]

Sagot:

100 cm

Hakbang-hakbang na paliwanag:

Kung ganoon :

Distansya na sakop ng Ruben = 900 centimetri

Distansya na sakop ng Jamie = 10 metro

Pagko-convert sa centimeter:

100 cm = 1 m

x cm = 10 m

Paggamit ng multiplikasyon ng krus:

x = 100 * 10

x = 1000 cm.

Dahil dito Distansya ni Jamie = 1000 cm

Distansya sa pagitan ng Jamie at Ruben;

1000 cm - 900 cm = 100 cm

3 0
2 years ago
HURRYYY
IgorC [24]

Answer:

I believe the answer is 10 units.

3 0
3 years ago
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