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bogdanovich [222]

3 years ago

5

Leyla needs to hire a plumber to fix a few things around her house. She will need plumbing service for a total of 3 hours. Which

plumbing service should she go with to save money? How much will she save? Justify your answer.

1 answer:

Natasha2012 [34]3 years ago

8 0

Hello Leyla! Could you provide details about the plumbing services? I’d be happy to help you in the comments.

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Line segment ab has endpoints a(9, 3) and b(2, 6). find the coordinates of the point that divides the line segment directed from

Dominik [7]

When we are to divide the line segment such that the ratio is 1:2, there are actually 3 parts of the segment. First, we determine the distance between the coordinates and divide the distance by 3. Then, we add the quotient to the x-coordinate.

x-coordinate: (2 - 9) / 3 = -7/3
y-coordinate: (6 - 3 ) / 3 = 1

Adding them to the coordinates of a,
x - coordinate: (9 - 7/3) = 20/3
y - coordinate: (3 + 1) = 4
Thus, the coordinates are (20/3, 4).

7 0

3 years ago

“If it takes 20 minutes to walk each block on the grid, how long will it take to walk from the art supply store to the game stor

Jet001 [13]

Answer:

20 minutes

Step-by-step explanation:

There is only one grid between the art supply store and the game story, so it will only take 20 minutes.

-> See attached

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I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

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6 0

2 years ago

Tienes un triángulo equilátero con lados de 10cm, lo divides en dos partes de manera horizontal tal que el área de ambos figuras

Tanya [424]

Answer:

x = 10/√2 ≈ 7.07

Step-by-step explanation:

Comenzaremos por dividir el triángulo en dos partes y definir H, como en la figura adjunta.

Aplicando el teorema de Tales, sabemos que:

$\dfrac{l/2}{H}=\dfrac{x/2}{h}\\\\\\\dfrac{l}{H}=\dfrac{x}{h}$

También sabemos que, dado que el tirángulo menor es la mitad que el triángulo mayor, la relación entre áreas es:

$\dfrac{A}{A_x}=\dfrac{lH/2}{xh/2}=\dfrac{lH}{xh}=2$

Dado que formamos dos triángulos rectángulos, podemos despejar el valor de H como:

$(l/2)^2+H^2=l^2\\\\H^2=l^2-(l/2)^2=10^2-5^2=100-25=75\\\\H^2=\sqrt{75}$

Podemos entonces despejar x de la siguiente manera:

$h=\dfrac{H}{l}\cdot x=\dfrac{lH}{2x}\\\\\\2x^2\dfrac{H}{l}=lH\\\\\\2x^2=l^2\\\\\\x=\dfrac{l}{\sqrt{2}}=\dfrac{10}{\sqrt{2}}\approx7.07$

6 0

3 years ago

How can you simplify <br><br> No viruses please

Alexeev081 [22]

Answer:

In order to simplify a fraction there must be:

A number that will divide evenly into both the numerator and denominator so it can be reduced, or

The numerator must be greater than the denominator, (an improper fraction), so it can be converted to a mixed number.

Step-by-step explanation:

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3 years ago

2 2/4 devided by 1/6

lara31 [8.8K]

(15 is your answer)

Divide numerator by denominator, cancel out any common factors

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3 years ago