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3 years ago

Rewrite in Standard Form. 1. y = (x - 3)(x+10)

Mathematics

2 answers:

densk [106]3 years ago

6 0

Answer:

Heres your answer y=x^2 +7x-30

Serhud [2]3 years ago

3 0

Answer:

y=x^2 +7x-30

Step-by-step explanation:

Hope this helps

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Whats the area for this figure?

Damm [24]

Answer:

120 uwu hehe I'm not the best at math nut I thinks it's that!

5 0

3 years ago

Read 2 more answers

X is 30% of 200, What is x? ( is/of = p/100) * Your answer

Inessa [10]

Answer:

30/100 *200/1= 6000/100=60

8 0

3 years ago

Two gears are connected and are rotating simultaneously. The smaller gear has a radius of 3 inches, and the larger gear has a ra

Crank

Answer:

Part 1: Angle = 154.3°

Part 2: About 2.33 Rotations

Step-by-step explanation:

Part 1:

The arc length of a circle is given by the formula $s=r\theta$

Where

s is the arc length
r is the radius of the circle
$\theta$ is the angle

**The angle are in radians and we will use radian**

When smaller gear has made 1 complete rotations ( $2\pi$ radians), the arc length traveled is $s=r\theta\\s=(3)(2\pi)\\s=6\pi$

Now, what angle is swept by the larger circle when it travels $6\pi$ ? Put in $s=6\pi$ and r is 7 to find $\theta$ :

$s=r\theta\\6\pi=(7)\theta\\\theta= \frac{6\pi}{7}$

** Since $\pi$ radians is 180°, we plug in 180 into $\pi$ and find the degree measure:

$\frac{6\pi}{7}=\frac{6*180}{7}=154.3$

Angle = 154.3°

Part 2:

In one complete rotation of the larger gear, it travels a distance of:

$s=r\theta\\s=(7)(2\pi)\\s=14\pi$

We know that the smaller circle makes 1 rotation and travels $s=r\theta=(3)(2\pi)=6\pi$ , so in $14\pi$ distance, it makes:

Rotations = $\frac{14\pi}{6\pi}=\frac{14}{6}=2.33$

About 2.33 Rotations

4 0

3 years ago

Find m∠C. Put the answer below. m∠C =

Wewaii [24]

Answer:

∠ C ≈ 66.8°

Step-by-step explanation:

Using the tangent ratio in the right triangle

tanC = $\frac{opposite}{adjacent}$ = $\frac{DE}{CE}$ = $\frac{7}{3}$ , then

∠ C = $tan^{-1}$ ( $\frac{7}{3}$ ) ≈ 66.8° ( to the nearest tenth )

3 0

3 years ago

Which of the equations below could be the equation of this parabola? (0, 0) A. x= - 1 / 4y² B. x=-1/4x2 C. x=1/4y2 D. x=1/4x2

Travka [436]

Answer:

Step-by-step explanation:

A. X=1/4y2

3 0

3 years ago