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Inga [223]
3 years ago
8

Evaluate the expression 2[x(2y+3z)] when x=8, y=3, and z=1. Show all steps below.

Mathematics
1 answer:
Setler [38]3 years ago
6 0

Answer:

Step-by-step explanation:

Putting values

2[8(2(3)+ 3(1)]

2(8(9)

2(72)

144

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Which expression is equivalent to (2x + 4)2 – (2x2 + 6)?
Anettt [7]

Answer:

The correct option is B). 2x^{2}+16x+10

Step-by-step explanation:

Given function is (2x+4)^{2}-(2x^{2} +6)

On simplifying,

=(2x+4)^{2}-(2x^{2} +6)

=[4x^{2}+16x+16]-(2x^{2} +6)

=4x^{2}+16x+16-2x^{2}-6

=2x^{2}+16x+10

Thus, The correct option is B). 2x^{2}+16x+10

8 0
3 years ago
Can you help?
Slav-nsk [51]

46 × 12 = 46 × (10 + <em>2</em>)  =

= (<em>46</em> × 10 ) + (<em>46</em> × 2)  

= <em>460</em> + 92

= <em>552</em>

5 0
3 years ago
Read 2 more answers
Given that B is between A and C. If AB=x, BC =2x-3, and AC = 30. Find x and bc
Artemon [7]

Answer:

x=11

BC=19

Step-by-step explanation:

AB+AC=AC this is because B is in between A and C. So now we can substitute all of the line segments, so we have

x+2x-3=30          Now you add 2x and x

3x-3=30      Now you add 3 to both sides so you can get 3x alone on one side

3x=33        Now you divide both sides by 3 so you get the x alone on one side

x=11

The next step is to substitute x to find BC.

BC=2x-3       Substitute the x with 11

BC=2(11)-3    Then multiply 2 and 11 because that is the rule with parenthesis

BC=22-3        then subrtact the 3 from 22

BC=19

You can check your work by doing AB+BC=AC

11+19=30        substitute your answers and then add them together

30=30

3 0
3 years ago
Given the position function s(t), s(t) = t3 - 5t, where s is measured in meters and t is in seconds, find the velocity and accel
Fantom [35]

Answer:

b

Step-by-step explanation:

given s(t) = t³ - 5t then

v(t) = s'(t) = 3t² - 5 and

v(3) = 3(3)² - 5 = 22 m / s, and

a(t) = v'(t) = 6t, then

a(3) = 6 × 3 = 18 m / s²



5 0
3 years ago
Dr. Smith gives his staff a 1 3 bonus if they exceed the quarterly goal. This quarter, they exceeded the goal by $1,500. Select
Temka [501]
If the staff bonus is 1/3 of what they exceeded you would have to take the amount they exceeded by and divide it by three

1,500/3= 500

The staff bonus would be $500 :)
5 0
3 years ago
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