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lisov135 [29]
3 years ago
6

Plz help asap please and thank you

Mathematics
1 answer:
Gre4nikov [31]3 years ago
7 0
Pet show has stations for each animal.  There are 5 rabbits, 7 cats, 8 dogs, and 4 hamsters.

1.  How many cats need to be added to make the probability 1/2. 

For the probability to be 1/2, we need there to be 1 cat for every 2 animals. There are 5+8+4 = 17 other animals besides cats so we need to increase the amount of cats to 17 so that it is 1/2 of the total.  We already have 7 so we need 17-7 = 10 more cats.

2.  Assume we added the cats.  What's the probability of picking a dog?

Since we added the cats, the total number of animals is now 17+17 = 34

There are 8 dogs, so the probability of picking a dog will be 8/34 which will reduce to 8/34 = 4/17 (you will pick 4 dogs every 17 attempts).

3.  No more animals added.  What is the probability of picking a rabbit or hamster?

Total rabbits and hamsters is 5+4 = 9  so there is a 9/34 chance of picking a rabbit or hamster. (you will pick a rabbit or hamster 9/34 attempts).

4.  What is the probability of NOT picking a goldfish?

Be careful here... the question is what is the probability that you won't pick a goldfish? Well there are no goldfish, so there is a 34/34 (100%) chance that you won't pick a goldfish.  You will NOT pick a goldfish 34 out of 34 times.
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Is 4/7 bigger or smaller than 3/5
blondinia [14]
\frac{4}{7}=\frac{4 \times 5}{7 \times 5}=\frac{20}{35} \\&#10;\frac{3}{5}=\frac{3 \times 7}{5 \times 7}=\frac{21}{35} \\ \\&#10;\frac{20}{35} < \frac{21}{35} \\ &#10;\Downarrow \\&#10;\frac{4}{7} < \frac{3}{5}

4/7 is smaller than 3/5.
3 0
3 years ago
Read 2 more answers
Simplify  ( √ 5 ) ( 3 √ 5 )
Amiraneli [1.4K]

Answer:

5^\frac{5}{6}

Step-by-step explanation:

\sqrt{5} can be represented as 5^{\frac{1}{2}} and \sqrt[3]5} can be represented as 5^{\frac{1}{3}}. Therefore, the expression can be rewritten as:

5^{\frac{1}{2}}*5^{\frac{1}{3}}

The rule for multiplying two exponents with the same base is you add the exponents. For example: x^m*x^k=x^{m+k}

We can use the same property to get:

5^{\frac{1}{2} +\frac{1}{3}}

which is just 5^\frac{5}{6} after you add the fractions

8 0
3 years ago
Which form of equation models the data if a is a negative integer and b is a positive integer?
ratelena [41]

Answer: c

Step-by-step explanation:

You can notove that this form makes sense

If we replaxe a by -2 abd b by 7 we get the data modeled in the graph

7 0
3 years ago
Which equation represents a line that passes through (–9, –3) and has a slope of –6?
Fiesta28 [93]
Using slope-intercept form, y = mx + b where m = slope and b = y-intercept:

We know our slope is -6. This can be interpreted as -6/1, which rise-over-run-wise, means that when y changes by 6, x changes inversely by 1.
To find that y-intercept, though, we need to find the value of y when x = 0.
Use our point (-9, -3) to find this...
We want to add 9 to x so that it becomes 0.
According to our slope, this means subtracting 54 from y.
Our y-intercept is at (0, -57), with -57 being the value of b we put in our equation.

\boxed{y=-6x-57}

You could also just use point-slope form:
y - y¹ = m(x - x¹)
y - (-3) = -6(x - (-9))
y + 3 = -6(x + 9)
And convert to slope-intercept if you want:
y + 3 = -6x - 54
y = -6x - 57
3 0
3 years ago
Read 2 more answers
Which of the following number is divisible by both 2 and 3​
DENIUS [597]

Answer:

6, 12, 18,

Step-by-step explanation:

u didn't said the numbers but here is the explanation

6÷2=3

6÷3=2

12÷3=4

12÷2=6

18÷2=9

18÷3=6

4 0
3 years ago
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