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alexgriva [62]
3 years ago
10

I need some help! please help me if you know the answers! will give brainliest!

Mathematics
2 answers:
miv72 [106K]3 years ago
7 0
C because you have to round and it would be C
Katyanochek1 [597]3 years ago
6 0
What he said lol XD
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there were 2,683 books sold at a bookstore this year. there were 1,317 more books sold last year. how many books were sold last
Nadya [2.5K]

Answer:

4,000

Step-by-step explanation:

you take this years total (2683)

and add how many more there was last year (1317)

then you get 4000!!

hope it helps

4 0
3 years ago
1 point<br> What is the center and radius of a circle with equation (x-4)2 + (y - 2)2 = 4
abruzzese [7]

Step-by-step explanation:

Find the Center and Radius (x-4)^2+y^2=4

(

x

−

4

)

2

+

y

2

=

4

This is the form of a circle. Use this form to determine the center and radius of the circle.

(

x

−

h

)

2

+

(

y

−

k

)

2

=

r

2

Match the values in this circle to those of the standard form. The variable

r

represents the radius of the circle,

h

represents the x-offset from the origin, and

k

represents the y-offset from origin.

r

=

2

h

=

4

k

=

0

The center of the circle is found at

(

h

,

k

)

.

Center:

(

4

3 0
2 years ago
Can anyone help me? I need an exact answer, please no guesses. Thanks in advance
tia_tia [17]
45 degrees
160 - 115
6 0
3 years ago
Read 2 more answers
3. Decide whether each equation is true or false, and explain how you know.
BARSIC [14]

Answer:

a.false

b.true

c.false

d.I really can't get about it.

e.false

Step-by-step explanation:

So,here;

a.9.9.3=35 is given

or,243=35 (which is false)

b.7+7+7=3+3+3+3+3+3+3

or,21=21 (which is true)

c.2/3/2=2/3

or,2*2/3=2/3

or,4/3=2/3(which is false)

e.6+6+6=63

or,18=63 (which is false)

5 0
2 years ago
Determine if the graph is symmetric about the x-axis, the y-axis, or the origin.<br> r = 9 sin 7θ
boyakko [2]

Answer:

The given function symmetric about the y-axis.

Step-by-step explanation:

The given function is

r=9\sin 7\theta                .... (1)

1. Symmetry about the x-axis: If the point (r, θ ) lies on the graph, then the point  (r,-θ ) or (-r, π - θ ) also lies on the graph.

2. Symmetry about the y-axis: If the point (r, θ ) lies on the graph, then the point (r,π - θ ) or (-r, -θ ) also lies on the graph.

3. Symmetry about the origin: If the point (r, θ ) lies on the graph, then the point (-r, θ ) or (r, π + θ ) also lies on the graph.

Put (r, -θ ) in the given function.

r=9\sin 7(-\theta)=-9\sin 7\theta=-r\neq r

Therefore it is not symmetric about x-axis.

Put (-r, -θ ) in the given function.

-r=9\sin 7(-\theta)=-9\sin 7\theta=-r

Therefore it is symmetric about y-axis.

Put (-r,θ ) in the given function.

-r=9\sin 7(\theta)=r\neq -r

Therefore it is not symmetric about the origin.

3 0
3 years ago
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