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erastovalidia [21]
3 years ago
10

"A parabola has the equation y=3x^2+ 6x- 12 . What are the coordinates of the vertex? (You must solve by factoring)!!!!!" I NEED

THE ANSWER TO THIS FAST WITH STEPS I'm a grade 10 academic student by the way
Mathematics
1 answer:
zaharov [31]3 years ago
4 0

<u />

<u>enjoy</u><u> </u><u>it</u>

<u>it</u><u> </u><u>best</u><u> </u><u>answer</u><u> </u><u>for</u><u> </u><u>you</u>

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The number of bacteria in petri dish A doubles every 10 minutes. The number of bacteria in oetri dish B doubles every 6 minites.
marissa [1.9K]
Givens
Petri Dish A sees a double ever 10 minutes
Petri Dish B sees a double ever 6 minutes

Consequences
A doubles 60 / 10 = 6 times.
B doubles 60 / 6 = 10 times.

Solution
If you work best with numbers then suppose there are 100 bacteria in both dishes at the beginning
A = 100 * 2^6
B = 100 * 2^10

A will have 100 * 64 = 6400 bacteria growing inside A
B will have 100 * 1024 = 102400 bacteria growing inside B

B/A = 102400 / 6400 = 16

There are 16 times as many in B than in A. <<<< Answer

7 0
3 years ago
On Tuesday Katy ran a mile in 8.34 minutes. She ran another mile in 7.89 minutes on Wednesday. What was the total time for both
butalik [34]
The answer would be 16.23 minutes for both miles.
8 0
3 years ago
Read 2 more answers
I need help I don’t lkdkdjxdkdjjddjdjdjd kdkdidjdjrke rikdjekrkdkdj dkdkdkdk
Elena L [17]
Jesse got that as an answer because he only multiples 2X to 2 and not to 8.
4 0
2 years ago
A
Serjik [45]

Answer

925 students brought their lunch.

Explanation

First let's rewrite the equation.

You know that "of" means multiply and "is" means equal.

Okay, so let's break it down.

The question says, "At your school, 74% of students brought their lunch at the cafeteria. There are 1250 students in the school."

This means that 74% of 1250 students brought their lunch at the cafeteria.

You are trying to find how many students brought their lunch. This will be x.

So the equation would be this.

74% × 1250 = x

74% is 0.74.

0.74 × 1250 = x

0.74 × 1250 = 925

So 925 students brought their lunch.

6 0
3 years ago
Distribute<br>(x+2)(x+9)<br><br>a) x^2+15x+18<br>b) x^2+6x+11<br>c) x^2+7x+9<br>d) x^2+11x+18​
Natasha2012 [34]

i hope this helps! let me know if you want me to explain more. sorry the picture is a little blurry

6 0
3 years ago
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