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nalin [4]
3 years ago
8

Rewrite the following fraction as a decimal. 4/5

Mathematics
2 answers:
Blababa [14]3 years ago
5 0

Answer:

0.8

Step-by-step explanation:

4/5 is 8/10 then you convert it into a decimal there would be no whole number and the 8 would go in the tenths place. So it would be 0.8.

guapka [62]3 years ago
4 0
4/5 = 8/10= 0. 80
make sense? any questions?
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Find x if a] 5^x=625 root 5 b] 3^2x-1 = 243
katen-ka-za [31]

x=3, you can find this by using finding common bases for equation b because 243=3^5. Because of that you can get rid of three on both sides to get the equation 2x-1=5 and then just solve for x to get x=3. For the first equation 5^3=625 so that also proves x=3.

Sorry if my explanation is a little disorganized if you need more help feel free to ask

6 0
2 years ago
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mote1985 [20]
The answer is one solution
8 0
2 years ago
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nordsb [41]

Answer:

d

Step-by-step explanation:

5 0
3 years ago
Consider the polynomial p(x) = x^3 + 4x^2 + 6x − 36.
Nady [450]

Answer:

a. attached graph; zero real: 2

b. p(x) = (x - 2)(x + 3 + 3i)(x + 3 - 3i)

c. the solutions are 2, -3-3i and -3+3i

Step-by-step explanation:

p(x) = x³ + 4x² + 6x - 36

a. Through the graph, we can see that 2 is a real zero of the polynomial p. We can also use the Rational Roots Test.

p(2) = 2³ + 4.2² + 6.2 - 36 = 8 + 16 + 12 - 36 = 0

b. Now, we can use Briott-Ruffini to find the other roots and write p as a product of linear factors.

2 |  1     4     6    -36

     1      6    18     0

x² + 6x + 18 = 0

Δ = 6² - 4.1.18 = 36 - 72 = -36 = 36i²

√Δ = 6i

x = -6±6i/2 = 2(-3±3i)/2

x' = -3-3i

x" = -3+3i

p(x) = (x - 2)(x + 3 + 3i)(x + 3 - 3i)

c. the solutions are 2, -3-3i and -3+3i

4 0
3 years ago
Could I get some help?
galina1969 [7]
The answer is x=5
Hope this helps
4 0
3 years ago
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