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Harman [31]
3 years ago
8

I need the answer asap​

Mathematics
1 answer:
Leni [432]3 years ago
7 0

Answer:

3a-21

Step-by-step explanation:

You multiple 3 with the inside of the parenthesis. 3 time a = 3a and 3 times negative 7 is -21

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Which expression is equivalent to sin(2x) cosx
Vsevolod [243]

Answer:

2sin(x)cos^2(x)

Step-by-step explanation:

To solve the problem, you must expand the trigonometric expression using the information given.

sin(2x)cosx\\sin(2x)\\=2sin(x)\\=2sin(x)cos^2(x)

7 0
2 years ago
-4x-2y=-12<br> solve the system of equations
Blababa [14]
Um there needs to be another equation
3 0
3 years ago
Figure WXYZ is a parallelogram.
sergiy2304 [10]

see the attached figure to better understand the problem

we know that

In a parallelogram opposite angles are congruent, and consecutive angles are supplementary

So

in this problem

∠Y=125°

∠W=∠Y

∠W=125°

∠Z=∠X

∠Y+∠Z=180°

∠Z=180-125

∠Z=55°

∠X=∠Z

∠X=55°

therefore

the answer is

∠Y=125°

∠W=125°

∠X=55°

∠Z=55°

8 0
3 years ago
Read 2 more answers
clay costs $5.60 per kilogram. The art teacher needs to buy 4.5 kilograms for the next project. How much will 4.5 kilograms of c
RoseWind [281]
Well first you have to multiply 4*5.60 to get the 4.0 kilograms

4*5.60=22.4

then divide 5.60/2 to get the .5 kilograms more she needs.

5.60/2=2.8

then just add 2.8+22.4 to get the whole 4.5

2.8+22.4=25.2

it cost $25.20 to get the whole 4.5 kilograms of clay. 


5 0
3 years ago
Read 2 more answers
-5+5x=-(1-6x)<br> Please don't just tell me the answer, will you please take me through the steps?
Inga [223]
<h3><u>The value of x is equal to -4.</u></h3>

-5 + 5x = -(1 - 6x)

Distribute -1 to each term inside the parentheses.

-5 + 5x = -1 + 6x

Subtract 5x from both sides.

-5 = -1 + x

Add 1 to both sides.

-4 = x


7 0
4 years ago
Read 2 more answers
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