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3 years ago

HELP PLEASE !!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Tanzania [10]3 years ago

3 0

Answer:

The answer is at most 22 days because when you simplify the inequality you get x is less than or equal to 22.

Step-by-step explanation:

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In the name katherine, fine the ratio of consonants to vowels. PLEASE HELP 100 POINTS WORTH!!!!!!!

Andrei [34K]

Answer:

5:4

Step-by-step explanation:

separate katherine into consonants:

kthrn

and vowels:

aeie

there are 5 consonants and 4 vowels, so the ratio is 5:4.

5 0

3 years ago

Read 2 more answers

5. Find the discriminant of 15x2 = 4x – 1 and describe

diamong [38]

Answer:

a) The discriminant of the equation = - 44

b)The nature of the roots will be imaginary.

c) $x = \frac{2 +\sqrt{11} i}{15} or, x = \frac{2 - \sqrt{11} i}{15}$

Step-by-step explanation:

Here, the given expression is $15x^{2} = 4x -1$

or, $15x^{2} - 4x + 1 = 0$

Now the discriminant (D) of a quadratic equation $ax^{2} +b x + c = 0$

D = $b^{2} - 4ac = (-4)^{2} - 4(15) (1) = 16 - (60) = -44$

Hence, the discriminant of the equation = - 44

As D< 0, so the roots will be imaginary.

Now,by quadratic formula : $x = \frac{-b \pm \sqrt{b^{2} - 4ac} }{2a}$

So, here $x = \frac{-(-4) \pm \sqrt{D} }{2a} = \frac{4 \pm \sqrt{(-44 )} }{30}$

So, either $x = \frac{4 + \sqrt{(-44 )} }{30} or, x = \frac{4 - \sqrt{(-44 )} }{30}$

or, $x = \frac{2 +\sqrt{11} i}{15} or, x = \frac{2 - \sqrt{11} i}{15}$

8 0

3 years ago

How do I work out 1 over 4 + 3 over 8

Dmitrij [34]

You would do 1/4 and get the answer plus 3/8s answer

6 0

3 years ago

The sum of two numbers is 27. One number is 2 times as large as the other. What are the numbers?

Alex

Answer:

9 and 18

Step-by-step explanation:

$x+y=27\\x=2y\\2y+y=27\\3y=27\\y=27/3=9\\x=27-9=18$

6 0

2 years ago

Read 2 more answers

Which expression has the same value as 4÷25 in fraction form

otez555 [7]

Answer:

4/25

Step-by-step explanation:

It is a fraction with 4 in the numerator and 25 in the denominator.

6 0

3 years ago