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3 years ago

.Write the expression x4 + 5x2 – 8 in quadratic form, if possible.

Mathematics

1 answer:

rodikova [14]3 years ago

5 0

Answer:

5x^2 + 4x - 8 Hope this helps! I think this is right, but it's hard to tell from the problem.

Step-by-step explanation:

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In a class 27 of students, 12 have a cat and 11 have a dog. There are 5 students who have a cat and a dog. What is the probabili

frosja888 [35]

Answer:

41.67% probability that a student has a dog given that they have a cat

Step-by-step explanation:

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: having a cat.

Event B: having a dog.

12 of 27 students have a cat:

This means that $P(A) = \frac{12}{27}$

5 students who have a cat and a dog.

This means that $P(A \cap B) = \frac{5}{27}$

What is the probability that a student has a dog given that they have a cat?

$P(B|A) = \frac{\frac{5}{27}}{\frac{12}{27}} = \frac{5}{12} = 0.4167$

41.67% probability that a student has a dog given that they have a cat

6 0

4 years ago

If 2^2x = 3, find 4^6x-5

tatuchka [14]

2^12x-10
Explanation: (the picture)

8 0

2 years ago

How many times greater is the value represented by the digit 3 in 437,291 than the value represented by the digit 3 in 583,426?

Orlov [11]

Answer:

10 times greater

In the first number, 3 represents 30,000, but in the second number 3 represents 3,000 so 30,000 is 10 times greater

8 0

4 years ago

Pls help. Will mark for CORRECT ANSWER!!

Travka [436]

Y = mx + b
slope(m) = -4
(-2,5)....x = -2 and y = 5
now we sub into the formula and find b, the y int
5 = -4(-2) + b
5 = 8 + b
5 - 8 = b
-3 = b

so ur equation is : y = -4x - 3 <==

3 0

3 years ago

A new cruise ship line just launched 3 new ships: the Pacific Paradise, the Caribbean Paradise, and the Mediterranean Paradise.

spin [16.1K]

C = caribbean, p = pacific, m = mediterranean

c = p + 29
m = 2p - 30
c + m + p = 719

(p + 29) + (2p - 30) + p = 719
4p - 1 = 719
4p = 719 + 1
4p = 720
p = 720/4
p = 180 <=== pacific paradise deluxe staterooms

c = p + 29
c = 180 + 29
c = 209 <=== caribbean paradise deluxe staterooms

m = 2p - 30
m = 2(180) - 30
m = 360 - 30
m = 330 <=== mediterranean paradise deluxe staterooms

3 0

3 years ago