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shutvik [7]
3 years ago
5

What the answer I don’t know it

Mathematics
2 answers:
viktelen [127]3 years ago
7 0

Answer:

A

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.
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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:

40

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
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