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Mrac [35]
4 years ago
11

I would really appreciate if someone could help! Thank you :)

Mathematics
1 answer:
SVETLANKA909090 [29]4 years ago
3 0
I think it's the 3rd bullet I hope I help
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PLEASE HELP IM DESPERATE WILL GIVE BRAINLIEST ONLY ANSWER IF YOU ARE HELPING
VARVARA [1.3K]

Answer:

48

Step-by-step explanation:

u • w

= (i + 6j ) • (9i - 2j )

= (1 × 9 ) + (6 × - 2 )

= 9 + (- 12)

= 9 - 12

= - 3

v • w

= (5i - 3j ) • (9i - 2j )

= (5 × 9) + (- 3 × - 2)

= 45 + 6

= 51

Then

u • w + v • w

= - 3 + 51

= 48

7 0
3 years ago
HELP PLEASE !!!!<br><br> a. 7(x + 2) = 3x + 6<br><br> b. 5/4x-17=x-8 <br><br> c. 1/2(16x+5)-3=19-5x
Fantom [35]
A=x= -2 b=x=36 c= x=1.5
3 0
3 years ago
The variable Z is directly proportional to X. When X is 12, Z has the value 228. What is the value of Z when X = 18
Kisachek [45]
Here, z = kx

k = z/x
k = 228/12
k = 19

So, when x = 18, 
z = 19 * 18
z = 342

In short, Your Answer would be: 342

Hope this helps!
8 0
3 years ago
Mary has three baking pans. Each pan is 8" × 8" × 3". Which expression will give her the total volume of the pans?
klio [65]
The volume of one pan is 192 units cubed. The volume of the three pans is 576 units cubed.
7 0
3 years ago
Which expression is equivalent to 3x + 2.5(4x + 2)?
Alex787 [66]

Answer:

I think its B

Step-by-step explanation:

Hope this helps:)

6 0
3 years ago
Read 2 more answers
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