B-3/15=1 I have a lot of answers but I don't know which one is correct

1 answer:

8 0

b-3/15=-1

We simplify the equation to the form, which is simple to understand
b-3/15=-1

Simplifying:
b-0.2=-1

We move all terms containing b to the left and all other terms to the right.
+1b=-1 + 0.2

We simplify left and right side of the equation.
+1b=-0.8

We divide both sides of the equation by 1 to get b.
b=-0.8

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D^2 + 2d - 8 = 0 explain plz

schepotkina [342]

Answer:

d^2 +2d-8=0

first pick two numbers which add up to make +2 and by multiplying those two numbers they should be able to create -8.

so for example 4 and 2

4-2=2

4 x -2= -8

so now factorise:

d^2 +2d-8=0

d^2+4d-2d -8=0

d(d+4)-2(d+4)=0

d+4=0 d-2=0

d=-4 d=2

Step-by-step explanation:

7 0

3 years ago

40 pts and Brainliest pls give detailed answer :)

horsena [70]

Answer:

58 ft

Step-by-step explanation:

So I attached a diagram that illustrates the triangle that is formed. We know an angle, as well as the hypotenuse. We are looking for the height, or in other words the opposite side of the angle. There is a trigonometric function defined as: $sin(\theta) = \frac{opposite}{hypotenuse}$ . Using this we can plug in known values and solve for the opposite side, which I'll simply represent as x.