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Vaselesa [24]
4 years ago
14

Which ordered pair is in the solution set of 3x-y=10

Mathematics
1 answer:
tia_tia [17]4 years ago
3 0

B as if you plug the co-ordinates into the equation and it equals 10: (3x4)-2= 12-2 =10

A doesn't work as the answer is 20

C doesn't work as the answer is 14

D doesn't work as the answer is -20

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April and Alex are saving money to buy new phones. April has $100 and saves $25 per week.
Margarita [4]
Based off of the information you gave, the equation for this would be y=$25x+100 (x is the amount of weeks that she saves) if that was what you were asking for ...
5 0
4 years ago
se quiere pintar una pared en forma de hexágono regular y se sabe que cada lado mide 3m y que su apotema es de 2,8m ¿cual es el
Debora [2.8K]

Answer:

16.8 metros cuadrados.

Step-by-step explanation:

Dado que se quiere pintar una pared en forma de hexágono regular y se sabe que cada lado mide 3m y que su apotema es de 2,8m, y que el área de un hexágono es igual al perímetro multiplicado por la apotema, y dicho resultado dividido por 2, para determinar cuál es el área que se va a pintar se debe realizar el siguiente calculo:

((6x3) x 2.8) / 2 = X

(12 x 2.8) / 2 = X

33.6 / 2 = X

16.8 = X

Así, el área que se va a pintar es de 16.8 m2.

3 0
3 years ago
Write an equation with a variable x and solve it to find these unknown amounts. a. 18 more than double a number is divided by 5
Harlamova29_29 [7]

Answer:

x = 21

Step-by-step explanation:

1. Write the equation

(18 + 2x) ÷ 5 = 12

2. Multiply both sides by 5

18 + 2x = 60

3. Subtract 18 from both sides

2x = 42

4. Solve for x by dividing both sides by 2

x = 21

4 0
3 years ago
Read 2 more answers
What is the equation of the circle with center (0, 1) and a radius of 10?
victus00 [196]

<u>Answer:  </u>

The equation of the circle with center (0, 1) and a radius of 10 is \bold{x^{2} + y^{2} - 2y-99 = 0}

<u>Solution: </u>

Equation of circle whose center (h, k) and radius r is given as,

(x-h)^{2} + (y-k)^{2} = r^{2} ---- eqn 1

From question, given that the circle has radius 10 and center (0, 1). We have to find the equation of the circle.

Hence we get, h = 0 ; k = 1; r = 10

By using eqn 1, the equation of circle whose center (0, 1) and radius 10 is given as

(x-0)^{2} + (y - 1)^{2} = 10^{2}

On Simplifying we get

x^{2} + (y-1)^{2} = 10^{2}

Expand (y-1)^{2} using the formula (a-b)^{2} = a^{2} - 2ab + b^{2}

x^{2} + y^{2} - 2y + 1 = 10^{2}

x^{2} + y^{2} - 2y + 1 = 100

x^{2} + y^{2} - 2y + 1-100 = 0

x^{2} + y^{2}- 2y- 99 = 0

Hence equation of the circle with center (0, 1) and a radius of 10 is  \bold{x^{2}+y^{2}-2 y-99=0}

3 0
3 years ago
What is the domain and range?
ycow [4]

Answer:

Domain- the set of possible values of the independent variable or variables of a function.

Range- the set of values that a given function can take as its argument varies.

8 0
3 years ago
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