All categories

3 years ago

Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function y = 2x2 + 4x –3.

Mathematics

1 answer:

Tpy6a [65]3 years ago

7 0

A graphing calculator shows the 4th selection to be appropriate.

You might be interested in

Select the correct answer from each drop-down menu.

Oksana_A [137]

Answer:

Step-by-step explanation:

B because range of set B is more than set A

range B=56-12=44

range A=55-12=43

5 0

2 years ago

Solve the equation square root 2x – 7 + x = 5 algebraically, and justify the solution set

yarga [219]

Answer: $x=4$

Step-by-step explanation:

$2x-7+x=5$

Group like terms:

$\left(2x+x\right)-7=5$

Simplify the arithmetic:

$3x-7=5$

Add 7 to both sides:

$3x-7+7=5+7$

Simplify the arithmetic:

$3x=5+7$

Simplify the arithmetic:

$3x=12$

Divide both sides by 3:

$\frac{3x}{3}=\frac{12}{3}$

Simplify the fraction:

$x=\frac{12}{3}$

Find the greatest common factor of the numerator and denominator:

$x=\frac{4\cdot 3}{1\cdot 3}$

Factor out and cancel the greatest common factor and the answer will be:

$x=4$

5 0

2 years ago

The theater sells two types of tickets: adult tickets for $15 and

UkoKoshka [18]

Answer:

Step-by-step explanation:

Let x=adult tickets and y=child tickets

1) 15x+11y=1889

2) x+y=147

multiply equation 1 by -1/11 on both sides to get:

-(15/11)x-y=-171.73

add new equation with equation 2 to get

-4/11x=-24.73

Isolate x to get:

x=67.99999

Round up to get 68 adult tickets

6 0

3 years ago

What is 9/11 +2/3 and show the work

andrey2020 [161]

Answer:

25/33

Step-by-step explanation:

1) find the least common denominator (LCD)

The LCD of 11 and 3 is 33

Multiply 9/11 by 3/3

You can do this because you are basically multiplying 9/11 by 1, (3/3 = 1)

See file below for steps

6 0

3 years ago

XZ = 13 and YZ = 4 Find XY

prohojiy [21]

Answer:

iddpd

Step-by-step explanation:

kddjdjdkdodidjdjddjdidodododkdjddjdjdjdidodldlddnnxkddo

7 0

3 years ago