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Novosadov [1.4K]
3 years ago
13

The length of one of two chords of a

Mathematics
2 answers:
garri49 [273]3 years ago
6 0
9.6 cementers in two chords
d1i1m1o1n [39]3 years ago
3 0

Answer:

9.6cm

Step-by-step explanation:

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If equation of a circle is x^2 + y^2 + 6x + 4y + 10 = 1 What is this equation written in its standard form?
Darya [45]

\text{The equation of a circle in standard form:}\\\\(x-h)^2+(y-k)^2=r^2\\\\(h,\ k)-center\\r-radius\\---------------------------\\\\Use\ (a+b)^2=a^2+2ab+b^2\\\\---------------------------

x^2+y^2+6x+4y+10=0\qquad\text{subtract 10 from both sides}\\\\x^2+6x+y^2+4y=-10\\\\x^2+2x\cdot3+y^2+2y\cdot2=-10\qquad\text{add}\ 3^2\ \text{and}\ 2^2\ \text{to both sides}\\\\(x^2+2x\cdot3+3^2)+(y^2+2y\cdot2+2^2)=-10+3^2+2^2\\\\(x+3)^2+(y+2)^2=-10+9+4\\\\\boxed{(x+3)^2+(y+2)^2=3}

5 0
3 years ago
Find the slope of the line shown on the graph to the right (-4,-3) and (2,3)
DerKrebs [107]

Answer:

y=x+1

Step-by-step explanation:

to do this we have to use the slope formula, Rise/Run which is (y2-y1)/(x2-x1) so (3-(-3) or 3+3 divided by (2-(-4) or 2+4, so the slope would be 6/6 or 1. so it is up one over one, and since at the x coordinate of 0 it is y=1 we know the formula must be y=x+1

5 0
3 years ago
Read 2 more answers
Marilyn uses a credit card with a 19.9% APR compounded monthly to pay for car repairs totaling $991.38. She can pay $410 per mon
Leokris [45]
Marilyn's finance charge at the end of the first month will be
  $991.38 × 0.199/12 = $16.44
The balance subject to the next month's finance charge will be
  $991.38 +16.44 -410.00 = $597.82

The finance charge at the end of the second month will be
  $597.82 × 0.199/12 = $9.91
The balance remaining after the second payment will be
  $597.82 +9.91 -410.00 = $197.73

The finance charge applied at the end of the third month is
  $197.73 × .199/12 = $3.28
so Marilyn can make one final payment of
  $197.73 +3.28 = $201.01
to pay off the balance.

In all, Marilyn has paid 2×$410.00 +201.01 = 
  $1021.01 . . . . . . . . corresponds to the first choice

_____
In real life, Marilyn's credit card may not accrue any finance charge until after the first statement on which the charge appears. Thus the total cost of the purchase may be only $1004.02. The attached spreadsheet shows the beginning balance and the finance charges for each month for the two different scenarios.

8 0
3 years ago
Shade a model of 1.4 divided by 0.7
disa [49]
The answer equals two. That means that two wholes is shaded in.
7 0
3 years ago
exactly 512 small cubes perfectly fill a lidless cubical box. All of the small cubes were removed except those touching the bott
Vladimir [108]

Answer: 216

Step-by-step explanation:

Since, a cube is a 3D structure,

We can understand this problem by assuming the figure in the coordinate axis.

In which, The cubes in the box along x-axis = 10

Along y-axis = 10

Along z-axis = 10

Total cubes along each x, y, z directions those are not appearing on surface are (10-2), (10-2), (10-2) = 8, 8, 8  

Therefore total cubes which are not shown on the surface of the cube= 6\times 6\times 6 = 216.

Since, the box that are not in the surface are removed.

Thus, the total boxes that are removed = 216

6 0
4 years ago
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