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romanna [79]
3 years ago
6

What is b+b+b+b-b simplified ​

Mathematics
2 answers:
tekilochka [14]3 years ago
6 0

Answer:

5b

Step-by-step explanation:

However many b's there are that's your number so in this case its 5 and then you just add be to it so 5b

Alina [70]3 years ago
3 0

Answer:

5b* because we have no idea what it could stand for

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the half-life of a new experimental drug in your bloodstream is 15 hours how long will it take for the drug to Decay to 60% of t
Ierofanga [76]

4 hours? i may be wrong

i did - 60 * 15

seems about right, since 50% would be 7.5 hours?

7 0
3 years ago
For which value of x is the row in the table of values incorrect? the function is the quadratic function y=-1/2x^2
liberstina [14]

Answer:

D. x = 5

Step-by-step explanation:

At x = 5

y = -½(5)²

y = -½ × 25 = -25/2 = -12½

8 0
3 years ago
Solve this the link is down below
kogti [31]
There is no link here
4 0
3 years ago
Please help! Find the value of X. Round to the nearest tenth. acellus
just olya [345]

9514 1404 393

Answer:

  38.2°

Step-by-step explanation:

The law of sines tells you ...

  sin(x)/15 = sin(27°)/11

  sin(x) = (15/11)sin(27°) . . . . . multiply by 15

  x = arcsin((15/11)sin(27°)) ≈ arcsin(0.619078) ≈ 38.2488°

  x ≈ 38.2°

_____

<em>Additional comment</em>

In "law of sines" problems, you need to identify a side and opposite angle that you know both values of. Then, you need to identify whether you're looking for an angle or a side, and whether its opposite side or angle is known. If two angles are known, you can always figure the third from the sum of angles in a triangle.

Here, we have angle 27° opposite side 11. We are looking for an angle, and we know its opposite side. This lets us use the ratio formula directly. Since the angle is the unknown, it is useful to write the equation with sines on top and sides on the bottom.

The given angle is opposite the shorter of the given sides, so this triangle has two solutions. We assume that we want the solution that is an acute angle  (141.8° is the other solution). That assumption is based on the drawing. Usually, you're cautioned not to take the drawings at face value.

7 0
3 years ago
A proportional relationship is represented by the equation 2x = 18y. IF y = kx, where k is the constant of proportionality, find
ddd [48]
2x=18y
divide 2
x=9y
9y=x
divide by 9
y=1/9x

k=1/9
3 0
3 years ago
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