2 years ago

If sin 150° is 1/2 find sin75°

1 answer:

7 0

Answer:

use a calculator and enter those numbers then press SIN

Step-by-step explanation:

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blsea [12.9K]

The equations

$2x^2+9x-5=0$

and

$2\left(t-\dfrac12\right)^2+9\left(t-\dfrac12\right)-5=0$

are really the same, we're just setting $x=t-\dfrac12$ , or $t=x+\dfrac12$ .

$2x^2+9x-5=(2x-1)(x+5)=0\implies x=\dfrac12,x=-5$

So we get

$t=\dfrac12+\dfrac12=1,t=-5+\dfrac12=-\dfrac92$

8 0

2 years ago

Anton [14]

Answer:

Step-by-step explanation:

448 divided by 32 is 14 so then do 14 times 1/2 to get 7 centimeters

6 0

2 years ago

Advocard [28]

Idk what linear combination is but you can solve this way:
3x+y=4
-2x-y=-5
x=-1
3(-1)+y=4
-3+y=4
y=7
So x=-1 and y=7

3 0

2 years ago

levacccp [35]

Daniel is correct, but Kelly is not

3 0

2 years ago

kompoz [17]

Answer:

Step-by-step explanation:

5-2=3

other vehicles:Trucks::3:2

3 0

2 years ago