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ElenaW [278]
3 years ago
12

Liam earns an hour shoveling snow? What is the relationship between the number of hours and the amount he earns?

Mathematics
1 answer:
tigry1 [53]3 years ago
3 0

Answer:

how much does he earn an hour?????

Step-by-step explanation:

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Which two ratios are equivalent to 10 : 12? 11:13 and 20:24 B. 10:12 and 11:13 C. 5:6 and 20:24
Readme [11.4K]

Answer: 5;6

Step-by-step explanation:

10 divided by 2 is 5

12 divided by 2 is 6 and plus I got this answer correct

6 0
4 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
4 years ago
There is a margin of error on a food survey of 6%. What is the range of the number of students who prefer chicken strips to meat
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I might be wrong but, I think it's C
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4 years ago
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Answer:

d=4

Step-by-step explanation:

just trust me

(Add 7 both sides - 48 = 12d,

divide both sides by 12 - d = 4)

4 0
3 years ago
what are the domain and range of f(x) = 2(3^x)? domain: (-∞,∞); range: (0,∞) domain: (-∞,∞); range: (2, ∞) domain: (0,∞); range-
icang [17]
f(x)2\cdot3^x\\\\the\ domain:\ x\in(-\infty;\ \infty)=\mathbb{R}\\\\the\ range:\ y\ib(0;\ \infty)
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3 years ago
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