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3 years ago

What is the line of symmetry of the parabola y=x2+6x-9?

1 answer:

5 0

First we have to find the vertex (h,k) h is also x and it also is the a xis symmetry

1st: group the number
(X2+6x)-9

2nd: use b/2

6/2 = 3 , 3^2= 9

(X2+6x+9)-9-9

(X2 + 3)-18

Vertex is 3,-18 so the symmetry is 3

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The probability that Terry buys a sandwich is 0.4.

lara31 [8.8K]

0.4 * 0.6 this gives

0.24

5 0

3 years ago

A tropical storm has been moving at 15 miles per hour for the past two days. Bess recorded that the storm moved 135 miles yester

Allushta [10]

Answer:

Bess has been keeping track of the storm for 14 hours.

Step-by-step explanation:

The tropical storm has been moving at 15 miles per hour.

Bess recorded that the storm moved 135 miles yesterday and 75 miles today. Total distance covered by storm is

$135+75=210$

The relationship between distance speed and time is defined as

$speed=\frac{distance}{time}$

$15=\frac{210}{time}$

$time=\frac{210}{15}$

$time=14$

Therefore, Bess has been keeping track of the storm for 14 hours.

8 0

3 years ago

-2 = 6/7*p <br> How do you solve the equation.

Sophie [7]

Solve for p by simplifying both sides of the equation, then isolating the variable.
p= - 7/3

3 0

3 years ago

Read 2 more answers

What is the equation of the line passing through the points (-4,-7) and (8,-13)

Valentin [98]

Answer:

6/-12 = -1/2

Step-by-step explanation:

do you want an explanation?

btw, plz brainliest :)

6 0

3 years ago

Read 2 more answers

I need help can you?

gizmo_the_mogwai [7]

Answer:

Step-by-step explanation:

Statements Reasons

1). m∠QPS = m∠TPV 1). Given

2). m∠QPS = m∠1 + m∠3 2). Angle addition postulate

m∠TPV = m∠2 + m∠4

3). m∠1 + m∠3 = m∠2 + m∠4 3). Given

4). m∠1 = m∠2 4). Given

5). m∠1 + m∠3 = m∠2 + m∠4 5). Subtraction property

m∠3 = m∠4

6 0

2 years ago