All categories

3 years ago

Find the vertex for the equation: y = 3x^2 + 18x + 30 (-3, 3) (-3, -51) (3, 111)

Mathematics

2 answers:

Papessa [141]3 years ago

8 0

I think (-3, 3 ) !!!!!!!!!!!

Tems11 [23]3 years ago

4 0

Y = 3x^2 + 18x + 30
a = 3, b = 18, c = 30

h = -b/2a = -18 / 6 = -3
k = (4ac – b^2) / 4a = (360 - 324)/12 = 36/12 = 3

vertex (h, k) = (-3,3)

answer
(-3, 3)

You might be interested in

A typical adult human body contains approximately 2.500 L of blood plasma. How many grams of blood plasma are in the typical adu

Ira Lisetskai [31]

Answer:

2,575 grams of blood plasma are in the typical adult human body

Step-by-step explanation:

Density is the property that matter, whether solid, liquid or gas, has to compress into a given space, so it relates the amount of mass per unit volume. So the density of a substance is the quotient between mass and volume:

$density=\frac{mass}{volume}$

In this case, you know:

density=1.03 $\frac{g}{mL}$
mass= ?
volume= 2.5 L= 2,500 mL (being 1 L= 1,000 mL)

Replacing:

$1.03\frac{g}{mL} =\frac{mass}{2,500 mL}$

and solving, you get:

mass= 1.03 $\frac{g}{mL}$ *2,500 mL

mass= 2,575 g

2,575 grams of blood plasma are in the typical adult human body

5 0

2 years ago

From long experience, it is known that the time it takes to do an oil change and lubrication job on a vehicle has a normal distr

djyliett [7]

Answer: 29.916 minutes

Step-by-step explanation:

Given the following :

Mean of distribution = 17.8 minutes

Standard deviation of distribution = 5.2 minutes

Percentage of customers to give free lube and oil change service should not exceed 1% if the customer waits beyond the guaranteed time ;

Length of guarantee :

Since % of customers should not exceed 1%

Then probability of not being chosen = (1 - 0.01) = 0.99

Using the z table to find the Zscore of 0.99,

Zscore of 0.99 = 2.33

This is 2.33 standard deviations above the mean

(2.33 × standard deviation) + mean value

(2.33 × 5.2 minutes) + 17.8 minutes

12.116 + 17.8

= 29.916 minutes

8 0

3 years ago

Please help solve much appreciated

DIA [1.3K]

Step-by-step explanation:

For the Cuboid, the formula will be:

Width x Height x Length

For the cylinder the volume formula will be:

$\pi \: \times \: {radius}^{2} \times \: length$

7 0

2 years ago

The circle passes through the point (-1,-6). What is its radius?

nadya68 [22]

Answer:

u8uij

Step-by-step explanation:

jbjkh

3 0

2 years ago

If both spinners are spun simultaneously, what is the probability that both spinners will land on orange?

andrew11 [14]

Answer:

The probability that neither land on orange is (1/2)* (7/8) = 7/16. Hence, the probability that at least one lands on orange is 1 - 7/16 = 9/16.

Step-by-step explanation:

me big brain

8 0

2 years ago