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vazorg [7]
1 year ago
15

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Mathematics
1 answer:
Pie1 year ago
5 0

\textit{height of an equilateral triangle}\\\\ h=\cfrac{s\sqrt{3}}{2} ~~ \begin{cases} s=sides\\[-0.5em] \hrulefill\\ s=2 \end{cases}\implies h=\cfrac{2\sqrt{3}}{2}\implies h=\sqrt{3}\implies h\approx 1.7

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If you flip a coin 150 times about how many times would you expect to get heads
meriva
A coin has two sides, which means it has a 1/2 chance of landing on each individual side when you flip the coin. Since there is a 1/2 chance of landing on each side, you could expect the coin to land on "Heads' 75 times. 
3 0
3 years ago
Mariana wears her winter coat when the temperature is colder than -4^{\circ}\text{C}−4 ∘ Cminus, 4, degrees, start text, C, end
Savatey [412]

Answer:

T < - 4°C

Step-by-step explanation:

Given that Mariana wears her coat only when temperature is colder than - 4°C

Recall that lower temperature values indicate higher degree of coldness ;

Hence, Mariana will only wear her coat when temperature values are lesser than - 4°C ; this means that the temperature at that period is colder than - 4°C.

Hence, the inequality expression which is only true for temperatures when Mariana wears her coat can be written as :

Temperature = T

T < - 4°C

5 0
2 years ago
Read 2 more answers
Considera um quadrado de lado 2x e um rectângulo de comprimento x e largura x  2 . Qual é o valor de x para o qual as duas figu
ki77a [65]

Answer:

3 unidades de comprimento

Step-by-step explanation:

O perímetro é definido como a soma de todos os lados.

O perímetro de um quadrado de lado 2x é dado por:

Q=4*2x=8x

O perímetro de um retângulo de comprimento x e largura x² é dado por:

R=2x+2x^2

Para que ambos os perímetros sejam iguais:

R=Q\\8x=2x+2x^2\\x^2=\frac{6}{2}x\\ x=3

O valor de x é igual a 3 unidades de comprimento.

4 0
2 years ago
Tina earned $300. This amount represented 40% of the money she needed to pay for her senior trip. What is the cost of the senior
ludmilkaskok [199]

Answer:

she needed $480 to pay for her trip

7 0
3 years ago
-3(-6u+6)-3u=5(u-2)-3
riadik2000 [5.3K]

Answer:

u=1/2

Step-by-step explanation:

-3(-6u+6)-3u=5(u-2)-3

18u-18-3u=5u-10-3

15u-18=5u-13

15u-5u-18=-13

10u-18=-13

10u=-13+18

10u=5

u=5/10

simplify

u=1/2

5 0
3 years ago
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