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Sergeu [11.5K]
3 years ago
14

Evaluate the expression 4ab, for a =2 and b = 5

Mathematics
2 answers:
yan [13]3 years ago
4 0

Answer:

40

Step-by-step explanation:

4x2=8

8x5=40

expeople1 [14]3 years ago
3 0

Answer:

40

Step-by-step explanation:

you do this 4(a*b)

ab is 10 so 4*ab=40

hint (if you see two variables without a symbol in between,  multiply)

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What is the solution to the equation below?
lara31 [8.8K]

Answer:

x=4096, Option B

Step-by-step explanation:

Given, \log_{8}x=4

Formula needed,

\log_{a}b=\frac{\log b}{\log a}

Therefore,

\log_{8}x=\frac{\log x}{\log 8}

\frac{\log x}{\log 8}=4

{\log x}=4{\log 8}

\log x={\log 8^4}

x=8^4

x=4096

Option B is correct.

8 0
4 years ago
when tom simplified the expression -2.6 + (-5.4), he got 2.8 what mistake did tom likely make? pls help me
olga_2 [115]

Answer:

2.6 and 5.4 are both the same sign, he should add them and then take that negative sign from (-5.4), so the answer would be -8.0.

5 0
3 years ago
Solve for x<br> -2x + 4 = 6x - 12
aleksklad [387]

Answer:

x=2

Step-by-step explanation:

-2x+4=6x-12  Add 2x to both sides.

<u>+2x    +2x</u>

4=8x-12         Add 12 to both sides.

<u>+12  +12</u>

16=8x            Divide by 8 on both sides.

<u>/8 /8</u>

2=x

Hope this helps you out and have a great day (~^▽^)~

5 0
3 years ago
Read 2 more answers
How many terms are in the expression 5x+3y-2z​
Viktor [21]

Answer:

three?

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
18.96 x 2.03 correct to 2 significant figures equals what?
Andreas93 [3]

9514 1404 393

Answer:

  38

Step-by-step explanation:

The product of the given numbers is 38.4888. Rounding this to two significant digits gets you 38.

6 0
3 years ago
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