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KATRIN_1 [288]
3 years ago
5

Simplify 2/3(30d-15) Can someone please explain distributive property with fractions?

Mathematics
1 answer:
Oksana_A [137]3 years ago
7 0

Answer:

You do 2/3 times 30d minus 2/3 times 15. That will give you 20d - 10

Step-by-step explanation:

(2/3x30d) - (2/3x15) = 20d - 10

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Amplitude of 16 units, a period of 5 units, a vertical displacement of 3 units up and a phase shift of 2.5 units left.
allochka39001 [22]

The question is incomplete. The complete question is :

A sine function that has an amplitude of 16 units, a period of 5 units,a vertical displacement of 3 units up and a phase shift of 2.5 units left. Graph this function and show each step.

Solution :

The standard form of the sine function is

y = a sin (bx - c) + d

Here given :

Amplitude, a = 16

Period :   $\frac{2 \pi}{|b|} = 5$

            ⇒ $b = \frac{2\pi}{5}$

Phase shift :  $\frac{c}{b} = 2.5$

                   $\Rightarrow \frac{c}{2 \pi/5}=\frac{5}{2}$

                  ∴ $c = - \pi$

The vertical displacement : d = 3 units up

Now substituting a, b, c and d values in the standard form gives :

$y = 16 \sin \left( \frac{2 \pi}{5}x -(- \pi)\right) + 3$

$y = 16 \sin \left( \frac{2 \pi}{5}x + \pi\right) + 3$

The graph is attached below.

4 0
3 years ago
Find the LCM of 25 and 35.<br> (asap plz)
goldenfox [79]

25:5=5\\5:5=1\\\\25=\boxed{5}\cdot5\\\\35:5=7\\7:7=1\\\\35=\boxed{5}\cdot7\\\\LCM(25,\ 35)=\boxed{5}\cdot5\cdot7=175

Other method:

The multiples of 25: 0, 25, 50, 75, 100, 125, 150, 175, 200, ...

The multiples of 35: 0, 35, 70, 105, 140, 175, 210, ...

Answer: LCM(25, 35) = 175

6 0
4 years ago
Answer Choice<br> A)72<br> B)64<br> C)50<br> D)42<br> E)13
Alex73 [517]

Answer:

aaaa

Step-by-step explanation:

3x6x4

5 0
3 years ago
Read 2 more answers
String a is 35 centimeters long. String b is five times as long as string a. Both are necessary to create a decorative bottle. F
gayaneshka [121]

Answer:

35.7 m.

Step-by-step explanation:

To find the length of string b, you have to multiply 35 by 5. You get 175, and so when it asks how much total string you need for each bottle you must add 175 and 35, which gets you 210. Then, to find how much you need in total for 17 bottles  you need to multiply 210 by 17. This gets you 3570 cm, which you can convert to 35.7m.


6 0
4 years ago
Solve the linear equation.
Nataliya [291]

7x+10=\dfrac{1}{3}(12x-3)+14x\qquad\text{use distributive property}\\\\7x+10=\dfrac{1}{3}\cdot12x-\dfrac{1}{3}\cdot3+14x\\\\7x+10=4x-1+14x\\\\7x+10=18x-1\qquad\text{substitute 10 from both sides}\\\\7x=18x-11\qquad\text{subtract 18x from both sides}\\\\-11x=-11\qquad\text{divide both sides by (-11)}\\\\\boxed{x=1}

8 0
4 years ago
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