Ask question

Ask question

All categories

2 years ago

7

If using the method of completing the square to solve the quadratic equation

1 answer:

Alika [10]2 years ago

7 0

Answer:

56.25

Step-by-step explanation:

Hello!

To complete the square

we take the b-value
Divide it by 2
And square it

<h3>Complete the square:</h3>

$x^2 - 15x + 22$
$x^2 -15x + \frac{225}{4} + 22 = \frac{225}{4}$
$x^2 - 15x + 56.25 + 22 = 56.25$

We add 56.25 to both sides.

You might be interested in

Chegg: Amoung 400 randomly selected drivers in the 16-18 age bracket, 206 were in a car crash in the last summer. If a driver in

Digiron [165]

The probability of a car crash is 56.75

Approx probability of car crash = 227/400 = 0.5675 i.e. 56.75%

This probability is high enough to be of concern to those in the 16-18 age bracket because the probability is not unlikely.

Probability is the department of mathematics concerning numerical descriptions of the way in all likelihood an occasion is to occur, or how probable it's miles that a proposition is actual. The probability of an occasion is more than a few between zero and 1, in which, kind of talking, 0 indicates impossibility of the occasion and 1 shows actuality.

The probability of an occasion can be calculated through chance system via simply dividing the favorable range of results by using the overall number of possible results.

Learn more about probability here: brainly.com/question/24756209

#SPJ4

8 0

2 years ago

Help anyone ? Pls n thank you

Ostrovityanka [42]

Answer:

$3^{6} =729$

Step-by-step explanation:

$3^{6}$ ÷ $3^{5}$ = X ÷ 243 =3

So X = 3×243= 729

4 0

3 years ago

PLEASE HELP ME!!! I will give the BRAINLIEST for whoever answers it CORRECTLY!

MrRissso [65]

Answer:

Add equations A + B to eliminate y

Then add equations A and C to eliminate y

Step-by-step explanation:

Since all the equations have y with a coefficient of 2, I would eliminate y

Add equations A + B to eliminate y

Then add equations A and C to eliminate y

4 0

3 years ago

Read 2 more answers

A prescription calls for the following: Sodium citrate 5 g Tartar Emetic 0.015 g Cherry syrup ad 120 mL Using a balance with a s

ella [17]

Answer:

measure the volume of cherry syrup solution with Tartar Emetic = 22.5 mL

Hence, the correct quantity of tartar emetic to fill the prescription will be obtained

Step-by-step explanation:

Given:

Mass of Sodium citrate = 5 g

Mass of Tartar Emetic = 0.015 g = 15 mg

Volume of Cherry syrup ad 120 mL = 120 mL

sensitivity = 4 mg

Error = 5%

Now,

The smallest weight that can be measured = $\frac{\textup{Sensitivity}}{\textup{Error}}\times100$

or

The smallest weight that can be measured = $\frac{\textup{4}}{\textup{5}}\times100$ = 80 mg

Now,

80 mg is dissolved in 120 mL of Cherry syrup according to prescription

( Thus,

1 mg is dissolved in $\frac{120}{80}\ mL$ of Cherry syrup according to prescription )

so to measure 15 mg of Tartar Emetic, measure the volume of cherry syrup

= $15\times\frac{120}{80}\ mL$

= 22.5 mL

Hence, the correct quantity of tartar emetic to fill the prescription will be obtained

8 0

4 years ago

No explanation needed answer fast TY

attashe74 [19]

Answer:

50.24

Step-by-step explanation:

The first step is to find the area of it if it was a whole circle

you get this by squaring the radius

8*8 or 8^2= 64

then, you have to multiply it by 3.14 which gives you

200.96.

Then divide it by 4 to get a quarter of the circle to get the final answer

50.24

Hope this helps, if it does, please give me brainliest, it will help a lot :)

Have a good day

8 0

3 years ago