All categories

3 years ago

What the answer I don’t know it

Mathematics

2 answers:

viktelen [127]3 years ago

7 0

Answer:

Step-by-step explanation:

because negative minus negative is positive so its negative 6 plus 3

meriva3 years ago

5 0

The answer is B since a negative number being subtracted cancels out and becomes a number, for example: since its -(-3) it becomes positive.

You might be interested in

The sum of the first three terms of a sequence is 6 and the fourth term is 16

Sati [7]

Answer:

a₁ = -5, d = 7, a₂ = 2, a₃ = 9, a₄ = 16

equation of sequence: $\boxed{\bold{a_n=7n-12}}$

Step-by-step explanation:

a₁ + a₂ + a₃ = 6

a₁ + a₁ + d + a₁ + 2d = 6

3a₁ + 3d = 6

a₁ + d= 2 ⇒ a₁ = 2 - d

a₄ = 16

a₁ + 3d = 16

2 - r + 3d = 16

2d = 14

d = 7

a₁ = 2-7 = -5

a₁ = -5, d = 7 ⇒ a₂ = -5+7 = 2, a₃ = 2+7 = 9, a₄ = 9+7 = 16

equation of arithmetic sequence:

$a_n=a_1+d(n-1)\\\\a_n=-5+7(n-1)\\\\\underline{a_n=7n-12}$

6 0

3 years ago

A circle has a radius of 5 ft, and an arc of length 7 ft is made by the intersection of the circle with a central angle. Which e

kirill115 [55]

We can use the arc length formula to solve this.

Arc length = $\frac{q}{360}*2\pi r$

Given arc length is 7 and radius is 5, we can plug in the values and solve for q.

$7=\frac{q}{360}*2\pi (5)\\7=\frac{q}{360}*10\pi \\7=\frac{10\pi q}{360}\\7=\frac{\pi q}{36}\\7*36=\pi q\\252=\pi q\\q=\frac{252}{\pi}\\q=80.21$

ANSWER:

We can use the equation $7=\frac{q}{360}*2\pi (5)$ to find the value of q. And, the value of q is 80.21°.

3 0

3 years ago

Read 2 more answers

The regular hexagon below is centered at the origin. It is rotated clockwise around the origin through an angle of k° For which

tatiyna

Option D is correct hope i helped at all

4 0

3 years ago

Read 2 more answers

Sophia has 3 stickers for every 2 stickers Ethan has. If Sophia gives Ethan 16 of her stickers than Ethan will have twice as man

Lerok [7]

Answer:

Step-by-step explanation:

Let number of stickers Sophia has be "x" and number of stickers Ethan has be "y"

Now,

Sophia has 3 for every 2 ethan has, that means

3x = 2y

When sophia gives 16, she will have:

3x - 16

Ethan, after getting 16, will have:

2y + 16

This trade will make Ethan to have TWICE, so we can write:

2(3x-16) = 2y + 16

Now, the 1st equation can be written as:

3x = 2y

x = 2y/3

Now replacing this into 2nd, we solve for y:

So altogether they have:

24+16=40

5 0

3 years ago

Graph y = x + 4. this is a khan academy question

Readme [11.4K]

Answer:

Given function:

$y=x+4$

We will plugin some random values for $x$ to evaluate $y$ and thus find out the points in the form $(x,y)$ to be plotted on graph.

$x$ $y=x+4$ $(x,y)$

$0$ $0+4=4$ $(0,4)$

$1$ $1+4=5$ $(1,5)$

$2$ $2+4=6$ $(2,6)$

We have got 3 points of the line $y=x+4$ to plot on the graph. After plotting the points, we will join them and extend either side to infinity to get the line.

8 0

3 years ago