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Elina [12.6K]
3 years ago
14

Please help me!! My Daugher is 9 years old. I don't really remember it. The problem is: in a class of 27 students, 16 like video

games and 20 like cartoons. If 12 students like both video games and cartoon, how many students do not like either?
Mathematics
1 answer:
Alecsey [184]3 years ago
5 0
24 students do not like either because first you do 16+20=36, and do 36-12=24
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Lucas makes a flag it has 6 equal parts five of the parts are red what fraction of the flag is red
deff fn [24]
One part of six parts is red, so just make it a fraction like so: 1/6 because 1 side is red out of six total parts.
8 0
3 years ago
6. What are the zeroes for the<br>function<br>f(x) = 2x3 + 12x – 10x2?<br>​
agasfer [191]

Answer:

<h2>x = 0, x = 5 + √13 and x = 5 - √13.</h2>

Step-by-step explanation:

f(x) = 2x^3 + 12x – 10x^2 can and should be rewritten in descending powers of x:  

f(x) = 2x^3 – 10x^2 + 12x

This, in turn, can be factored into f(x) = x·(x² - 10x + 12).

Setting this last result = to 0 results in f(x) = x·(x² - 10x + 12).

Thus, x = 0 is one root.  Two more roots come from x² - 10x + 12 = 0.

Let's "complete the square" to solve this equation.

Rewrite x² - 10x + 12 = 0  as  x² - 10x +              12 = 0.

a) Identify the coefficient of the x term.  It is -10.

b) take half of this result:  -5

c) square this last result:  (-5)² = 25.

d) Add this 25 to both sides of x² - 10x +              12 = 0:

     x² - 10x +  25      +      12 = 0 + 25

e) rewrite x² - 10x +  25 as the square of a binomial:

       (x - 5)² = 13

f)  taking the sqrt of both sides:  x - 5 = ±√13

g) write out the zeros:  x = 5 + √13 and x = 5 - √13.

The three roots are x = 0, x = 5 + √13 and x = 5 - √13.

8 0
3 years ago
1 459/500 as a decimal
Ronch [10]

Answer:

1.918

Step-by-step explanation:

1 then do 459/500 x 2 to make 918/1000 then add and convert

6 0
2 years ago
Evaluate. −27/125−−−−√3 A.-9/25 B.-3/5 C.9/25 D.3/5
Vladimir79 [104]
\sqrt[3]{\dfrac{-27}{125}} = -\sqrt[3]{\left(\dfrac{3}{5}\right)^{3}}=\dfrac{-3}{5}

The appropriate choice appears to be ...
   B. -3/5
7 0
3 years ago
Read 2 more answers
A + (b-4) when a-24 and b-7
lara31 [8.8K]

Answer:

a=24

b=7

now

24+(7-4)

24+3

27

so the answer is 27

5 0
3 years ago
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