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3 years ago

What is 3x2- 2x -7 = 0

Mathematics

1 answer:

Damm [24]3 years ago

8 0

Use the order of operations or PEMDAS

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Solving systems of equations by graphing

Ipatiy [6.2K]

Answer:

Hi! The correct answer is x = -1 y = -1 and the ordered pair is (-1,-1)

Step-by-step explanation:

<em><u>~Solve the first variable in one of the equations, then substitute the result into the other equation~</u></em>

7 0

3 years ago

Roses cost $5 each. There is also a $10 delivery fee. Find the cost to have a dozen roses delivered.

Masja [62]

Answer:The answer is 70$

Step-by-step explanation: 12x5 which is dollars per rose is 60. 60$ is how much the roses costs. Since it is one delivery, there is a 10$ fee. 60$+10$= 70$

6 0

3 years ago

Read 2 more answers

Determine the amplitude or period as requested. Period of y = - 1/3 * sin 2x

Sedbober [7]

Answer:

$Period = \pi$

Step-by-step explanation:

Given

$y = -\frac{1}{3} * \sin(2x)$

Required

The period

A sine function is represented as:

$y =A \sin(Bx + C) + D$

Where

$Period = \frac{2\pi}{B}$

By comparing:

$y =A \sin(Bx + C) + D$ and $y = -\frac{1}{3} * \sin(2x)$

$B = 2$

So, we have:

$Period = \frac{2\pi}{2}$

$Period = \pi$

Hence, the period of the function is $\pi$

3 0

3 years ago

(worth 100 points) Miguel is organizing his collection of sports memorabilia into glass display cases. He wants to cover each si

AlladinOne [14]

Answer:

4240 inches²

Step-by-step explanation:

In order to find the amount of film needed, we have to find the surface area of this cuboid.

Formula to Find Surface Area of Cuboid: $2(wl+hl+hw)$ , where w = width, l = length, and h = height.

Now, let's solve!

$2(36*25+20*25+20*36)$
$2(900+500+720)$
$2(2120)$
$4240$

Therefore, the answer is 4240 inches².

8 0

2 years ago

Read 2 more answers

I don't get this one?

Vlad1618 [11]

Answer:

4000

Step-by-step explanation:

V=4/3(3)(10)^3

V= 4/3 (3)(1000)

V=4/3 (3000)

V=4000

7 0

2 years ago