MATHEMATICS MIDDLE SCHOOL

Solve by using the quadratic formula.
3psquared+7p+2=0

Answers

Answer 1

Answer:

Answer:

-1/3,-2

Step-by-step explanation:

The quadratic formula is [-b±√(b^2-4ac)]/2a. In this equations 3p^2 is a, 7p is b, and 2 is c.

Then just plug in the numbers.

[-7±√((-7^2)-4(3)(2)]/2(3)

[-7±√(25)]/6

(-7+5)/6 and (-7-5)/6

-1/3 and -2 are the answers, if you plug these numbers into the original equation, you find that they equal 0 which means that they work.

Answer 2

Answer:

Answer:

$\large\boxed{x=-2\ or\ x=-(1)/(3)}$

Step-by-step explanation:

The quadratic formula of a quadratic equation

$ax^2+bx+c=0\n\nx=(-b\pm√(b^2-4ac))/(2a)$

We have the equation:

$3p^2+7p+2=0\to a=3,\ b=7,\ c=2$

Substitute:

$b^2-4ac=7^2-4(3)(2)=49-24=25\n\n√(b^2-4ac)=√(25)=5\n\nx_1=(-7-5)/(2(3))=(-12)/(6)=-2\n\nx_2=(-7+5)/(2(3))=(-2)/(6)=-(1)/(3)$

Related Questions

Can anyone help me solve this system of equation by elimination?5x+4y=-30 3x-9y=-18
Which pair of triangles can be proven congruent by the HL theorem
A right triangle has side length 9,40, and 41 as shown below. Use these lengths t find cos Y, and tan Y, and sin Y.
How do you write 6/10 as a hundredths in fraction form and decimal form
5/6 - 2/6 in simplest form

Kn + 4f = 9v
solve for n

Answers

Answer:

n=(9v-4f)/k

Step-by-step explanation:

kn+4f=9v

kn=9v-4f

n=(9v-4f)/k

Answer:

n = (-4f + 9v) ÷ k

Step-by-step explanation:

All you have to do is... flip the equation

A car travels at 48mph for 2 hours and 20 minutes how far has he travelled

Answers

Answer:

Step-by-step explanation:

48+2+20

Whats the percent of fifty one hundredths.

Answers

.5 or .50 hope it helps

What is the x-intercept of y=40x+70

Answers

At th x-intercept y=o

∴40x + 70 = 0
40x = -70
x = -70/40
x = -1.75

x intercepr = (-1.75,0)

Describe how you could draw a diagram for a problem about finding the total length for 2 strings, 15 inches long and 7 inches long.

Answers

Answer: You could add the strings together to get 22 inches.

For a diagram of this simply draw two line segments that are right next to each other.

You could measure and label the smaller one with 7 units and the larger one with 15 units. Then, anyone could just count to 22 to find the total.

Jim bought 2 packs of batteries from a store. The price of each pack was the same. After he bought the batteries, his account balance showed a change of −$23.94. What would have been the change to Jim's account balance had he only bought 1 pack of batteries from the store?−$21.94 −$11.97 $11.97 $21.94

Answers

Hello,

The correct answer is B) -$11.97

Hope this helps!!!! :)

**(Vanessa)**

Final answer:

If Jim had purchased only one pack of batteries, the change to his account balance would be -$11.97.

Explanation:

This problem describes a mathematical scenario related to buying and pricing. Given that Jim bought 2 packs of batteries for -$23.94, we can infer that this is the total cost for both packs. Therefore, to find the cost of one pack, you will simply divide the total cost by the number of packs.

To do this, −$23.94 should be divided by 2. Using a calculator, this division equals −$11.97. Therefore, the change to Jim's account balance if he had only bought 1 pack of batteries would have been −$11.97.