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inysia [295]
3 years ago
14

You went out to lunch with three friends and your subtotal was $42 not including the sales tax of 6%.

Mathematics
1 answer:
Lady_Fox [76]3 years ago
6 0

Answer:

It's DEFINITELY 2.52

Step-by-step explanation:

Change 6% to a decimal, which will be .06! Times $42 Times.06 and you'll end with the answer $2.52 !!!

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Please help this is due tmrw
Bond [772]
Sorry, I only know 8, 9, and 10.

8. This can be anything, but my guess would be 40 - 20 = 20
9. 3, because 3 x 3 = 9.
10. 7, because 7 x 4 = 28.

Hope this helped!
6 0
3 years ago
If the angles are represented in degrees, find both angles: \cos(3x+13)=\sin(2x+42) cos(3x+13)=sin(2x+42)
Sphinxa [80]

Answer:

cos34°

sin56°

Step-by-step explanation:

Sin(2x+42)= sin90-(3x+13)

Sin(2x+42) = sin(90-13-3x)

Sin(2x+42) = sin(77-3x)

2x + 42 = 77-3x

5x. = 35

X = 7

If x = 7

cos(3x+13) = cos((3*7)+13)

cos(3x+13) = cos(21+13)

cos(3x+13)= cos34

And

sin(2x+42) = sin((2*7)+42)

sin(2x+42)= sin (14+42)

sin(2x+42) = sin56

4 0
3 years ago
Help me please right anwsers only pleaseeeeeeee quick
lina2011 [118]

13)3302 (254

2600

________

702

702

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× × × ×

7 0
3 years ago
2. Vectors u and v are given by: u=5i-4j+ pk v=2i+tj-3k (a) Express p in terms of t when u and v are perpendicular. ​
Sindrei [870]

If u and v are perpendicular, then their dot product is zero:

\vec u \cdot \vec v = (5\,\vec\imath-4\,\vec\jmath+p\,\vec k) \cdot (2\,\vec\imath+t\,\vec\jmath - 3\,\vec k) = 10 - 4t - 3p = 0

Solve for p :

10 - 4t - 3p = 0

3p = 10 - 4t

\boxed{p = \dfrac{10-4t}3}

6 0
2 years ago
Macey already saved $25 and then saved an additional $15 each week from her
KATRIN_1 [288]

Answer:

31 weeks or 30 2/3

Step-by-step explanation:

485-25 = 460

460/15 = 30 2/3

8 0
3 years ago
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