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aliya0001 [1]
3 years ago
10

What is the answer x2 = 400.

Mathematics
1 answer:
Westkost [7]3 years ago
7 0

Answer:

200

Step-by-step explanation:

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Use the quadratic formula to solve 2x^2=5x+6. Leave your answer in radical form. Show all of your work!
Westkost [7]

Answer:

In radical from 169/50 , 177/200

Step-by-step explanation:

Given:

2x^2=5x+6\\\\2x^2-5x-6=0\\\\Where, a=2 , b=-5 , c=-6

Find:

Value of x

Computation:

Using quadratic formula:

\frac{-b\±\sqrt{b^2-4ac} }{2a}\\\\By\ putting\ all\ value\\\\ \frac{-(-5)\±\sqrt{(-5)^2-4(2)(-6)} }{2(2)}\\\\ \frac{5\±\sqrt{25+48} }{4}\\\\ \frac{5\±8.54 }{4}\\\\\frac{5+8.54 }{4},\frac{5-8.54 }{4} \\\\3.38 , 0.885

Value of x 3.38 , 0.885

In radical from 169/50 , 177/200

8 0
3 years ago
Nadia needs 2/5 cup of orange juice for a punch recipe. She will double the recipe to make punch for a party. Which statement is
adelina 88 [10]

Answer:

Step-by-step explanation:

There's not a lot to go on with the details provided in the question, but based on all you said, if there isn't more to the question, then the true statement is the fact that Nadia needs 2/5 cup of orange juice for punch recipe.

Twice that amount is 4/5, and logically, that can't suffice in a party, except it's a party of 3, maybe 5 people. I'm assuming the people in the party would be much more than that. Makes the fraction impossible

3 0
3 years ago
Please help ASAP!
g100num [7]
So all you have to do to solve these problems is substitute the y coordinate and the x coordinate into the equation.

So question 1 would be true because when you substitute the numbers in it equals the y value.

Question 2 is (4, -7)

Question 3 is False

Question 4 is true

Question 5 is true

See if you can do the rest!
8 0
3 years ago
A manatee surfaced for air 3 times in 120 seconds.how many seconds went by before the manatee surfaced the first time if it held
Juliette [100K]

Answer:

40 seconds

Step-by-step explanation:

The ratio would be 3:120, indicating the amount of times it went up for air in 120 seconds. In order to find the answer, we'll find the unit rate. 120 divided by 3 is evenly 40. That means, the unit rate is 1:40. It also means that 40 seconds went by before the manatee surfaced the first time (if it held its breath for the same rate).

7 0
3 years ago
Select the correct answer.
Likurg_2 [28]
C The smaller the number in an inequality is always located to the left of the number on the horizontal line!!
4 0
3 years ago
Read 2 more answers
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