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3 years ago

Solve for the unknown by using the additive inverse. Type the FULL answer in the box, without using any spaces (ex., X=5).

Mathematics

1 answer:

GrogVix [38]3 years ago

4 0

Answer:

x=(-10)

Step-by-step explanation:

ok, so the first step is to organize the equation: on the left we will put the X numbers, and on the right normal numbers, like this:

-X+2X=-6-4

(p.s I hope that you know that when you transfer numbers and other values,the sign changes : from plus to minus and vise versa)

so now, if you will do the simple math,you will find the value of X.

X=(-10)

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What is the volume of the cone with diameter 7in and height 9in? Round to the nearest cubic inch

dezoksy [38]

Diameter = 7 cm
radius = 7÷2 = 3.5
Volume of cone = 1/3 $\pi r^{2} h$
Volume of cone = 1/3 $\pi 3.5^{2} (9)$ = 115 cubic inches (Answer B)

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3 years ago

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Solve 6 sin((π/5)x)=5 for the four smallest positive solutions

cupoosta [38]

Answer:

1.568, 3.432, 11.568, 13.432

Step-by-step explanation:

Divide equation $6\sin\left(\dfrac{\pi }{5}x\right)=5$ by 6:

$\sin\left(\dfrac{\pi }{5}x\right)=\dfrac{5}{6}.$

Then

$\dfrac{\pi }{5}x=(-1)^k\arcsin\left(\dfrac{5}{6}\right)+\pi k,\ k\in Z,$

$x=(-1)^k\dfrac{5}{\pi }\arcsin\left(\dfrac{5}{6}\right)+5k,\ k\in Z.$

Since $\arcsin\left(\dfrac{5}{6}\right)\approx 56^{\circ}\approx \dfrac{\pi }{3.2},$

four smallest positive solutions are

1. $\dfrac{5}{3.2}\approx 1.568,\ k=0;$

2. $\dfrac{-5}{3.2}+5\approx 3.432,\ k=1;$

3. $\dfrac{5}{3.2}+10\approx 11.568,\ k=2;$

4. $\dfrac{-5}{3.2}+15\approx 13.432,\ k=3.$

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4 years ago

You have just shipped 26 reels of electrical wire. Each reel has 20,000 feet of wire. The price of the wire is 0.05 per foot. Wh

JulsSmile [24]

$26,000, you multiply 26×20000×.05

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4 years ago

A truck that can carry no more than 6600 lbs is being used to transport refrigerators and upright pianos. each refrigerator weig

ZanzabumX [31]

Answer:

(a). 300r + 425p ≤ 6,600

(b). No, it’s not considered overweight

Step-by-step explanation:

In this question, we are to write an equation that shows the number of refrigerators and pianos the truck could carry.

Let the number of refrigerators be r and the number of pianos be p

By using their individual weights, the equation is as follows;

300r + 425p ≤ 6,600

To the second question, we want to consider if 10 refrigerators and 8 pianos are overload.

To get this, we simply multiply the number of each by their individual weights;

That would be;

300(10) + 425(8) = 3000 + 3,400 = 6,400 lbs

This is not considered overweight as it is less than 6,600 lbs

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4 years ago

Which statement describes the image?

boyakko [2]

Answer:

d.) none are correct

Step-by-step explanation:

it should be reflection over the y-axis then reflection over the x-axis

3 0

3 years ago

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