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3 years ago

Which binomial is a factor of 3x^2 + 2x − 5 ? 3x-1 3x-5 x-1 x-5

Mathematics

1 answer:

gayaneshka [121]3 years ago

6 0

Answer:

3x-1

Step-by-step explanation:

3x^2+2x-5=3x-1 x1-25

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What is the image of ( 2 , 8 ) after a reflection over the x-axis?

romanna [79]

Answer:

(2,-8)

Step-by-step explanation:

To reflect across the x axis make the y negative

8 is negative here

8 0

2 years ago

If X = 3 inches, Y = 11 inches, W = 5 inches, and Z = 5 inches, what is the area of the object?

ziro4ka [17]

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3 years ago

What is the ratio for sine

Sphinxa [80]

Answer:

Blank 1: opposite

Blank 2: adjacent

Blank 3: opposite

Blank 4: adjacent

Step-by-step explanation:

There is a trigonometric acronym for this which is:

Soh Cah Toa

Soh means that sine is opposite over hypotenuse.

Cah means that cosine is adjacent over hypotenuse.

Toa means that tangent is opposite over adjacent.

Let me actually write these out as fractions:

sine is $\frac{\text{opposite}}{\text{hypotenuse}}$

cosine is $\frac{\text{adjacent}}{\text{hypotenuse}}$

tangent is $\frac{\text{opposite}}{\text{adjacent}}$

Blank 1: opposite

Blank 2: adjacent

Blank 3: opposite

Blank 4: adjacent

4 0

2 years ago

An oil tank has to be drained for maintenance. The tank is shaped like a cylinder that is 4 ft long with a diameter of 2.2 ft. S

gavmur [86]

Answer:

$8\:\mathrm{minutes}$

Step-by-step explanation:

The volume of a cylinder is given as:

$r^2\cdot\pi\cdot h$

Since the diameter is $2.2$ , the radius is $\frac{2.2}{2}=1.1$ .

Therefore, the volume of this cylinder is:

$1.1^2\cdot 3.14\cdot 4=15.1976\:\mathrm{ft^3}$ , using $\pi=3.14$ as requested in the problem.

Since the tank is emptied at a constant rate of $1.5\:\mathrm{ft^3\:per\:minute}$ , it will take

$\frac{15.1976}{1.5}=7.5988=\fbox{$8\:\mathrm{minutes}$}$ to empty the tank.

8 0

2 years ago

Find the measure of each angle indicated round to nearest tenth

ludmilkaskok [199]

Is this for a online final if it is I can’t help

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2 years ago