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3 years ago

Choose the missing exponent to create a polynomial:

Mathematics

1 answer:

Nady [450]3 years ago

3 0

-9, because in polynomials, they term with the highest exponent is in the front (when simplified, and on a question like this it is safe to assume the polynomial is simplified,) and -9 is the only exponent that is less than both 4 and 2.

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Twenty identical looking packets of white power are such that 15 contain cocaine and 5 do not. Four packets were randomly select

xxMikexx [17]

Answer:

The probability of selecting randomly 6 packets such that the first 4 contain cocaine and 2 not is 0.3522.

Step-by-step explanation:

Probabilities of selecting 4 packets with the ilegal substance:

$(\frac{15}{4})\\$ = $\frac{15!}{4!(15-4)!}$

Combinassions possible= 1365

Probabilities of selecting 2 packets with white powder:

$(\frac{5}{2})$ = $\frac{5!}{2!(5-2)!}$

Combinations possible= 10

Probabilities of selecting 6 packets from the totality of them:

$(\frac{20}{6})$ = $\frac{20!}{6!(20-6)!}$

Combinations possible= 38760

The probability of picking 4 with the substance and 2 with only white powder is:

$\frac{(15ncr4)(5ncr2)}{(20ncr6)}$ = 0.3522

I hope this answer helps you.

6 0

3 years ago

If f(x) = 2x - 5, then f(4) is<br> 17<br> 5<br> 4<br> 3

vagabundo [1.1K]

Answer:

Step-by-step explanation:

The notation "f(4)" means you put 4 where x is in the algebraic expression, then do the arithmetic.

f(4) = 2·4 -5

= 8 -5

= 3

6 0

4 years ago

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Can someone help me please

Sladkaya [172]

Here are you

Have a good day

3 0

3 years ago

The German autobahns are the nationally coordinated motorway system in Germany and have no general speed limit, but the advisory

melamori03 [73]

Answer:

The required equation is: $s=0.0508v^2$

The stopping distance of your car if you were moving at 95 mph is 458.47 feet.

Step-by-step explanation:

Consider the provided information.

Part (A)

Let us consider "s" is the distance "v" is the velocity and "k" is the constant of variation.

It is given that the stopping distance of a car varies directly as the square of the velocity of car when the brakes are applied

This can be written as:

$s=kv^2$ ......(1)

It is given that A car moving at 85 mph can stop in 367 feet.

Substitute v=85 and s=367 in above formula and solve for k.

$367=k(85)^2$

$367=7225k$

$\frac{367}{7225}=k$

$0.0508=k$

Now to find the equation that relates the stopping distance to the velocity substitute the value of k in equation 1.

$s=0.0508v^2$

Hence, the required equation is: $s=0.0508v^2$

Part (B)

Calculate the stopping distance of your car if you were moving at 95 mph.

Substitute the value of v=95 in $s=0.0508v^2$

$s=0.0508(95)^2$

$s=0.0508\times 9025$

$s=458.47$

Hence, the stopping distance of your car if you were moving at 95 mph is 458.47 feet.

4 0

3 years ago

What is the value of x? 60 and 95 are the degrees

bogdanovich [222]

Answer: The answer is 25

Step-by-step explanation:

First, You would add the two numbers together, which you get 155

Then, the degrees of a triangle is equal to 180. So you would subtract 155 from 189, and you should get 55.

Hope this helps :3

3 0

3 years ago

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