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3 years ago

How i can prove the proofs?

Mathematics

1 answer:

Marianna [84]3 years ago

3 0

You can prove the proofs by showing your work to prove the proofs.

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WILL BRAINLIST IF RIGHT (20points)

Lena [83]

Answer:

-24.1t^2+3

Step-by-step explanation:

6 0

3 years ago

Can someone please tell me what I'm doing wrong? I think I know how to do quadratic formula, and I know all the steps, but the l

Nata [24]

Okay, so first you set equal to 0:
$6-6x^{2}=3x\\-6x^{2}-3x+6=0$

Next simplify the equation so that the leading coefficient is positive:
$\frac{-6x^{2}-3x+6}{-3}=\frac{0}{3}\\2x^{2}+x-2=0$

Looking at the quadratic equation you can't easily simplify it, so plug it into the quadratic equation and simplify:
$x=\frac{-b\ -+\ \sqrt{b^{2}-4ac}}{2a}\\\\x=\frac{-(1)\ -+\ \sqrt{(1)^{2}-4(2)(-2)}}{2(2)}\\\\x=\frac{-1\ -+\ \sqrt{1+16}}{4}\\\\x=\frac{-1\ -+\ \sqrt{17}}{4}*\frac{-1}{-1}\\\\x=\frac{1\ -+\ \sqrt{17}}{-4},\ or\ B.$

I noticed a couple mistakes in your work, so if you want me to I can explain them in the comments section :)

5 0

3 years ago

Read 2 more answers

What is 1,227 divided by 4?

Andreyy89

Your answer is 306.75

1227÷4=306.75
hope this helps.....

8 0

3 years ago

number from 1 to 99 is written on a card making a pack of 99 cards. What is the probability of randomly selecting a card where t

andriy [413]

Answer:

(19/99) = 0.192

Step-by-step explanation:

Numbers 1 to 99, that is 99 numbers (obtained through the equation for the nth term of an AP)

L = a + (n-1) d

L = nth term = 99

a = first term = 1

n = number of terms = ?

d = common difference = 1

99 = 1 + (n-1)1

n = 99

Sample space = 99

The numbers that include at least, a 1 are

1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 31, 41, 51, 61, 71, 81, 91

19 numbers.

Probability of randomly selecting a card where the number contains at least one digit 1 from 1 to 99 = (19/99) = 0.192

Hope this Helps!!!

3 0

4 years ago

What is the approximate area of the circle shown?

lubasha [3.4K]

Answer:

254 cm^2

Step-by-step explanation:

18/2 = radius = 9

9^2(Pi) = 254 cm^2

6 0

3 years ago

Read 2 more answers