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Gwar [14]
3 years ago
7

Simplify the following algebraic expressions:

Mathematics
2 answers:
RoseWind [281]3 years ago
4 0
-x(x - 2b+ \frac{1}{2}) \\ \\ -2x + 4b - 1 \\ \\ Answer: \fbox {-2x + 4b - 1 (D)}
Aleks [24]3 years ago
3 0
-2(x-2b+ \frac{1}{2})=-2*x+2*2b- \frac{2}{2}= -2x+4b-1
So the correct answer would be D
Have a nice day!!! :)
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Please answer I will give 20 and brainiest
Mariulka [41]

Answer:

Option 4

Step-by-step explanation:

Coordinances for a three-dimensional coordinate system are (x, y, z).

The letter labeling each axis is always on the positive side.

The fourth option is correct because you move 3 units away from the 'x', 1 unit away from the 'y', then 2 units toward the 'z'.

3 0
3 years ago
I need help please and can you also explain how you got the answer
pashok25 [27]
Hello! Let’s start with multiplying them so they will have the same base! 2(2/3) = 4/6

Alright, now let’s divide them!

4/6 / 5/6 equals to 4 / 6 x 6 / 5 which is equal to 24 / 30 but I only see 2/3 times 6 / 5 WHICH IS the same thing tho.
3 0
3 years ago
Can someone PLEASE explain cos and sin?!
DIA [1.3K]
Yes.

If you have a RIGHT triangle with a 29-degree angle in it, and you
divide the length of the leg adjacent to the angle by the length of the
hypotenuse, then it doesn't matter whether the triangle is drawn on
the head of a pin or on a piece of paper that reaches from the Earth
to the Moon, the quotient of (adjacent)/(hypotenuse) will always be
the same number ... about 0.875 .

That number is a property of every 29-degree angle, no matter the size
of the right triangle that it's in.  It's called the cosine of 29 degrees.

If you were to divide the leg opposite the 29-degree angle (instead of
the adjacent leg) by the length of the hypotenuse, you'd get a different
number ... about 0.485 .  That number is also a property of every 29-degree
angle, no matter the size of the triangle around it.  That one is called
the sine of 29 degrees.

I just used 29 degrees as an example.  Every angle has a sine and
a cosine, and a few other things too. 

If you have an angle, there's no easy way to calculate its sine or its
cosine.  You just have to look them up.  They're in tables in books,
or on line (just put 'cosine 29' in Google), and if you have a calculator,
they're probably on your calculator too.

You don't know yet what these are good for, or what you can do with
them.  That'll be coming up in math before you know it !

So the easiest answer to your question is:

Every angle has properties, characteristics, and aspects of its
personality that you never notice until you really get to know it. 
They're called the sine, the cosine, the tangent, the cotangent,
the secant, and the cosecant.  They're all numbers, and every
angle has a full set of them !
6 0
3 years ago
Read 2 more answers
Jada has a bag with tiles she pulls a tile from the bag without looking accords the shape and then puts the tile back in the bag
vova2212 [387]

What is the probablity for the number of times Jada will pull a tile wit a star?

Answer: Number of tiles pulled out of the bag by Jada = 10, so she completed 10 trials.

The outcome of each trial was star, circle or a square.

Step-by-step explanation: We can find the experimental probability of pulling each shape from the bag based on the outcomes of Jada's experiment and number of trial.

  1. P(Star) = Number of stars/Number of trials= 5/10
  2. P(Circles)= Number of circles/Number of trials =3/10
  3. P(Square) = Number of Square/Number of trials = 2/10
    Here, P refers to Probability of an outcome

If Jada repeats the experiment, She would likely again pull more stars than circles or square. She may get different number of stars,circles or squares but over a large number of trials, she would expect the ratio of the stars in the proportion. We can use this proportonal relationship to get the reasonable prediction about te number of times she pull different shape tiles.

<u>Number of outcomes(10 trials) </u> = <u>Number of outcomes(100 trials)</u>

Number of trials(10 trials)              Number of trials (100 trials)

  1. Numbeof stars = 5/10 =s/100
    5*10/ 10*10 =50/100
  2. Number of Circle = 3/10 = c/100
    3*10/10*10 = 30/100
  3. Number of square = 2/10 = q/100
    2*10/10*10 = 20/100

    If she does the experiment 100 times then she should expect to pull out 50 stars tile, 30 circles and 20 Square.

Hence, Jada pulled out the 100 tiles from the bag.

Learn more about  geometry questions here-: brainly.com/question/17140560

7 0
2 years ago
HELLLP ASAP FIRST PERSON WITH CORRECT ANSWER WILL RECEIVE BRAINLIEST
Dafna11 [192]

Answer:

Rotating Q 180 degrees using the center P has the same effect as reflecting Q over the Line M  

Step-by-step explanation:

Rotating Q 180 degrees using the center P has the same effect as reflecting Q over the Line M and this is because Lines L and M are perpendicular lines ( i.e. lines that meet a right angle ( 90° ).

3 0
3 years ago
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