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saw5 [17]
3 years ago
12

Alvin incorrectly simplified 4 x 42 and got an answer of 166.

Mathematics
1 answer:
kirza4 [7]3 years ago
7 0

the answer is 168

Step-by-step explanation:

you times 4 by 2 you get 8.

now you got to times 4 by 40 and you get 160

now you add 8 to 160 you will get 168

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How will the graph of the function f(x) = 3* translate when the function is changed to f(x) = 3(x-2)?
Lelechka [254]

Answer: B

Step-by-step explanation:

6 0
3 years ago
Simplify the expression square root of -25/(5-2i) + (1-3i)
Georgia [21]

Answer:

I guess \frac{25}{6} -5i

Step-by-step explanation:

\frac{-25}{(5-2i)+(1-3i)}              1. rewrite the expression(it helps me tbh)

\frac{-25}{5 - 2i+1-3i}                   2. Distribute the positive symbol to (1-3i)

\frac{25}{6-5i}                           3. treat i as a variable while you combine like terms

\frac{25}{6} -5i                       4. divide 25 by 6-5i but leave 25/6 as a fraction since it can't be divisible.

6 0
3 years ago
Which expressions are equivalent to <br><br> 2 ln a + 2 ln b - ln a?
ycow [4]

Answer:

Choices 2, 3, and 5  are correct.

Step-by-step explanation:

Complete question is:

Check all that apply.

1. ln ab² - ln a

2. ln a + 2 ln b  

3. ln a² + ln b² - ln a

4. 2 ln ab

5. ln ab²

ANSWER:

The given expression is : 2 ln a + 2 ln b - ln a

It simplifies to: ln a + ln b² = ln ab²

Checking the given options.

1. ln ab² - ln a   = ln (ab²)/a = ln b²

  FALSE

2. ln a + 2 ln b = ln ab²

  TRUE

3. ln a² + ln b² - ln a = ln (a²b²)/a = ln ab²

  TRUE

4. 2 ln ab = ln a²b²

  FALSE

5. ln ab²

  TRUE

4 0
4 years ago
During an auto accident, the vehicle's air bags deploy and slow down the passengers more gently than if they had hit the windshi
Amanda [17]

solution:

maximum acceleration produce by bag =60 g

time to come to stop = 36 ms

applying equation

V=u-at

inserting values

0=u-(60)(36*10^-^3)

u=(600*36)/1000=21.6 m/s\\

now to find distance of penctration:

S=ut-1/2at^2

inserting values

S= (21.6)(36*10^-^3)-1/2(600)(0.036)^2

S=0.38m

hence distance traveled by person before coming to rest is 0.38 m

5 0
3 years ago
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