NEED HELP ASAP. Identify a counterexample to disprove −x ≤ x, where x is an integer.

choices are
-0.5
-2
2
0

Answer:

7.5 for 6 pounds

Step-by-step explanation:

The other choices are false, so choice C is the only solution here.

==================================================

Explanation:

Draw a number line. You'll have 0 in the center, with positive values on the right. The positive values increase 1,2,3,4,... as you move from left to right.

The negative values will go in the opposite direction. When going from right to left, we have -1, -2, -3, -4, ...

See the diagram below.

Now plot an open hole at -7 on the number line. The open hole says that we exclude this value from the solution set. Then we shade everything to the left of the open circle. This visually describes all values smaller than -7. Something like -2 is not to the left of -7, meaning -2 < -7 is false. But a value like -10 is to the left of -7, making -10 < -7 true.

With that in mind, the answer is n = -11 since -11 is to the left of -7. Of the values in the answer choices, it's the only thing to the left of -7.

The value n = -7 cannot be the solution because n < -7 would become -7 < -7 which is false.

Answer:

sure

Step-by-step explanation:

Step-by-step explanation:

[tex] \frac{1}{3} \pi {(6)}^{2} (9) \\ \frac{1}{3} \pi(36)(9) \\ \frac{1}{3} \pi(324) \\ 108\pi \\ 339.3 {cm}^{3} [/tex]

Answer:

somewhere on the y axis so ig -4,-2?

Step-by-step explanation:

Answer:

Step-by-step explanation:

Hope this helps u!!

Answer:

you are absolutely correct .........

The error is when she added 4 to both sides.

Instead, she should divide both sides by -4 to undo the multiplication. Specifically, the multiplication between the -4 term and the (x-2)^2 term.

This is one possible correction of what her steps could look like.

[tex]y = -4(x-2)^2\\\\\\0 = -4(x-2)^2\\\\\\\frac{0}{-4} = \frac{-4(x-2)^2}{-4}\\\\\\0 = (x-2)^2\\\\\\(x-2)^2 = 0\\\\\\\sqrt{(x-2)^2} = \sqrt{0}\\\\\\x-2 = 0\\\\\\x-2+2 = 0+2\\\\\\x = 2\\\\\\[/tex]

In the third step, I'm dividing both sides by -4. In the sixth step, I'm applying the square root to both sides to undo the squaring operation. Then two steps later, I'm adding 2 to both sides to undo the "-2", which helps fully isolate x.

The only solution is x = 2, so it's the only x intercept. You can verify this answer by plugging x = 2 back into the original equation at the very top. You should end up with y = 0.

Note: The term "root" is another name for "x intercept".

Answer:

18

Step-by-step explanation:

No of people joined=3

let x be people in begning

atq 3= 20/100x

x=20/100*3=15

no of people now=15+3=18

Sum of two number = 95

Let the first number be x, then another number be x + 15.

According to the question, x + x + 15 = 95

=>2x+15=95

=>2x+15-15=95-15

=>2x=80

=>x=40

Hence, the first number = 40

And another number = 40 + 15 = 55.

answer:

∠B = 70°

step-by-step explanation:

∠A = ∠B

8x + 6 = 4x + 38

4x + 6 = 38

4x = 32

x = 8

4(8) + 38

32 + 38

= 70

Answer:

10,000 divided by 5,000 12 times

Step-by-step explanation:

Answer:

$330

Step-by-step explanation:

to find how much he earned before raise:

1.2x = 1980

x = 1980/1.2

x = 1650

current salary: 1980

former salary: 1650

he makes $330 more

Answer:

330

Step-by-step explanation:

Answer:

The number of students who spend 4 hrs or more for reading = 25/100 = 1/4

we know 100 is a factor of 300

so equivalent fraction of (25/100)

× 3 = 75/300 = 1/4

.°.The simplest answer = 1/4 = 75/300

Hope it helps

Answer:

5

Step-by-step explanation:

633 yess sjs this is rhe im doing this for points

Answer: V=a3

Step-by-step explanation:

Answer:

40 words per minute

Step-by-step explanation:

[tex]\frac{1}{y} :\frac{3}{120}[/tex]

y · 3 = 1 · 120

3y = 120

3y ÷ 3 = 120 ÷ 3

y = 40

Answer:

1. 40 words per minute

Step-by-step explanation:

3 minutes = 120 words

1 minute = 120/3 = 40 words

Answer:

C

Step-by-step explanation:

sin33° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{y}{19}[/tex] ( multiply both sides by 19 )

19 × sin33° = y → C

Answer: c

Step-by-step explanation: sin 33=x/19 x=19sin33

Answer:

Area = 109 ft^2

Step-by-step explanation:

Area of shaded part = (16 ft)(9 ft) - (7 ft)(5 ft)

= 144 ft^2 - 35 ft^2

= 109 ft^2

Answer:

a=1,b=3,c=10

Step-by-step explanation:

a= the number with the highest power, in this case it is x^2. Therefore, a=1.

b= the number with the second number, the one that has an x. Therefore, b=3.

c=the last number, the one with no variable. therefore, c=10

If this helps please mark as brainliest

Answer:

Step-by-step explanation:

so theres 8 red marbles, 6 blue marbles, and 6 white marbles so that makes

8 + 6 + 6 = 20 marbles in total

the probability of the marble being white is 6/20 or 3/10

so the probabilty of the marble NOT being white is 1 - (3/10) = 7/10

Answer:

x = 2

Step-by-step explanation:

because m || n, you can assume the two angles are congruent.

set them equal to each other:

5x - 4 = 4x - 2

solve

add 4 to both sides: 5x + (-4 + 4) = 4x + (-2 + 4) --> 5x = 4x + 2

subtract 4x from both sides: (5x - 4x) = (4x - 4x) + 2 --> x = 2

Answer:

1. tan(x) = 9/20

arctan(9/20) ≈ 24.23°

2. cos(x) = 17/32

arccos(17/32) ≈ 57.91°

3. tan(x) = 13/18

arctan ≈ 35.84°

4. sin(x) = 21/28

arcsin(21/28) ≈ 48.59°

Answer:

1    x = 24.2°

2    x = 57.9°

Step-by-step explanation:

You must memorize the definitions of the trig functions and then these problems are easy

1:   tan = opposite side/adjacent side

opp side to x is 9 and adjacent side is 20

So, tan x = 9/20

x = arctan (9/20) = 24.2°

2:   cos = adjacent side/hypotenuse

adjacent side = 17 and hypotenuse = 32

cos x = 17/32

x = arccos (17/32)

x = 57.9°

You do 3 and 4.  Hint:  Use the tan function in 3 and the sine function in 4

OK?   You can do it!!!!

Answer:

We can predict the vertex point of [tex]g(x)[/tex] by vectorial sum, which is equal to [tex]V_{G}(x,y) = (h - 3, k + 7)[/tex].

Step-by-step explanation:

The vertex of [tex]g(x)[/tex] is equal to the vectorial sum of the vertex of [tex]f(x)[/tex] and the translation vector:

[tex]V_{G}(x,y) = V_{F}(x,y) + T(x,y)[/tex] (1)

Where [tex]T(x,y)[/tex] is the translation vector.

If we know that [tex]V_{F} (x,y) = (h,k)[/tex] and [tex]T(x,y) = (-3, 7)[/tex], then the formula for the vertex of [tex]g(x)[/tex] is:

[tex]V_{G}(x,y) = (h,k) +(-3, 7)[/tex]

[tex]V_{G}(x,y) = (h - 3, k + 7)[/tex]

Step-by-step explanation:

So visually youre given the function

for h(-4) it can also be written as h(-4) = y

what do you get for y when you substitute - 4 for x?

All you have to do is trace the line until you get to x=-4 and then find the y that corresponds to it (looks like around y= - 1)

for the other one h(x) = - 5

what do you get for x when you substitute - 5 for y?

what you do is similar, trace the line along the y-axis and see what x-value you get for y =-5

Answer:

3 and x = 0

Step-by-step explanation:

To find the value of h(- 4)

Locate x = - 4 on the x- axis, go vertically up to meet the graph at (- 4, 3 )

Then the value of h(- 4) = 3

For h(x) = - 5

Locate y = - 5 on the y- axis. This is the point (0, - 5)

then the value of x for which h(x) = - 5 is x = 0

Answer:

if that is a triple negative it would 5,2,2 1.7

Step-by-step explanation:

Step-by-step explanation:

7pi/6 radians = 7×180° /6 = 210°