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hichkok12 [17]
2 years ago
9

BIU A

Mathematics
1 answer:
marta [7]2 years ago
5 0

how many classes are there?

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What is the simplified expression for-3cd-d(2c-4)-4d
Elden [556K]

Answer: 0 -5cd.

Hope this helps :)

- Martiinez :)

8 0
3 years ago
PLEASE HELP MEEE! Simplify 6! − 3!
denpristay [2]

The simplified form of the expression 6! − 3! when it is simplify using the properties of factorial is 3!((6x5x4) − 1).

<h3>What is the simplified form of a term?</h3>

Simplified form of a term is the simplest way of expression the term, which is obtained  by applying the required operations of mathematics.

Factorial is the way to write the product of the numbers from its phase value to 1 in decreasing order. Suppose, the number is 3!. Then it can be written as,

3!=3×2×1

The expression which has to be simplified is,

6! - 3!

It can be written as,

6! - 3!

(6×5×4×3!)-3!

3!((6×5×4)-1)

Thus, the simplified form of the expression 6! − 3! when it is simplify using the properties of factorial is 3!((6x5x4) − 1).

Learn more about the simplified form here;

brainly.com/question/1597694

#SPJ1

4 0
1 year ago
If cos x=8/17, and 270° &lt; x &lt; 360°<br> what is cos(2x)?
svp [43]

Answer:  \bold{-\dfrac{161}{289}}

<u>Step-by-step explanation:</u>

Given: cos x = \dfrac{8}{17}, x is in Quadrant 4

Use Pythagorean Theorem to find sin x:

8² + y² = 17²    

      y² = 17² - 8²

      y² = 289 - 64

      y² = 225

      y = 15

→    sin x = -\dfrac{15}{17}

Use the double angle formula to find cos (2x):

cos (2x) = cos^2 x - sin^2 x\\\\.\qquad=\bigg(\dfrac{8}{17}\bigg)^2-\bigg(-\dfrac{15}{17}\bigg)^2\\\\\\.\qquad=\dfrac{64}{289}-\dfrac{225}{289}\\\\\\.\qquad=-\dfrac{161}{289}

             

8 0
3 years ago
Read 2 more answers
Use the distance formula to find the distance, to the nearest tenth, from S(7, −1) to V(−1, 3).
34kurt

Answer:  8.9 units (choice C)

Explanation:

We plug (x_1,y_1) = (7,-1) \text{ and } (x_2,y_2) = (-1,3)\\\\ into the distance formula to get the following

d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(7-(-1))^2 + (-1-3)^2}\\\\d = \sqrt{(7+1)^2 + (-1-3)^2}\\\\d = \sqrt{(8)^2 + (-4)^2}\\\\d = \sqrt{64 + 16}\\\\d = \sqrt{80}\\\\d \approx 8.94427\\\\d \approx 8.9\\\\

4 0
2 years ago
Which expression is equivalent to 4(3 plus 5) - 3 x18
Veseljchak [2.6K]

Answer:

-22

Step-by-step explanation:

6 0
3 years ago
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