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3 years ago

Anybody know the answer ? Please help :(

Mathematics

1 answer:

tiny-mole [99]3 years ago

6 0

Answer:

A. y= -2x+6

Step-by-step explanation:

The intercept is at 6, to make the line, you go down 2, over 1.

// have a great day //

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Select the correct operator for the following exponential expression. 0.510 ? 52

kupik [55]

A decimal is less than a whole number.

So,

0.510<52

"B" is the answer.

I hope this helps!
~kaikers

7 0

3 years ago

What is x2 + 2x + 9 = 0

vova2212 [387]

Answer:

x has no real solution

Step-by-step explanation:

Our equation is qudratic equation so the method we will follow to solve it is using the dicriminant :

Let Δ be the dicriminant
a=1
b=2
c=9
Δ= 2²-4*1*9 =4-36=-32
we notice that Δ≤0⇒x has no real solution

4 0

3 years ago

12. Translate “the sum of 6 and the product of 8 and x” into a mathematical expression

Shalnov [3]

Answer:

6+8x

Step-by-step explanation:

4 0

3 years ago

Riley wants to buy a car and has a choice between two different banks. One bank is offering a simple interest rate of 4.5% and t

Volgvan

The bank that offers compound interest should get Riley more money.

let's assume he puts 10,000 in each account, and he is saving for 10 years.

the account that gives him simple interest will give him .045 * 10,000 * 10 = 4500 in interest, which gives him a total of 14,500 at the end of 10 years.

the account that gives him annual compound interest will give him 10,000 * 1.045 ^ 10 = 15,529.69422 at the end of the 10 years.

the difference is that he is earning interest on his interest in the annual compound account, while he is only earning interest on his principal in the simple interest account.

Hope this helps. Good luck !!

5 0

3 years ago

A football team consists of 18 freshmen and 18 sophomores, 15 juniors, and 12 seniors. Four players are selected at random to se

marusya05 [52]

Answer:

58.05% probability that at least 1 of the students is a senior.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the captains are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question:

Either no seniors are captain, or at least one is. The sum of these probabilities is 100%. The easier way to solve this question is finding the probability of no seniors being captain, and subtratcing 100 from this. So

Probability of no seniors being captain:

Desired outcomes:

Four captains, from a set of 18 + 18 + 15 = 51. So

$D = C_{51,4} = \frac{51!}{4!(51-4)!} = 249900$

Total outcomes:

Four captains from a set of 18 + 18 + 15 + 12 = 63. So

$T = C_{63,4} = \frac{63!}{4!(63-4)!} = 595665$

Probability:

$p = \frac{D}{T} = \frac{249900}{595665} = 0.4195$

41.95% probability of no seniors being captains.

Find the probability that at least 1 of the students is a senior.

p + 41.95 = 100

p = 58.05

58.05% probability that at least 1 of the students is a senior.

6 0

3 years ago