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stiks02 [169]
2 years ago
5

'Is the red line a radius or diameter of the circle?

Mathematics
2 answers:
Marina86 [1]2 years ago
4 0

Answer:

diameter

Step-by-step explanation:

Inga [223]2 years ago
3 0

Answer: Diameter if line is all the way through , radius if only line only reaches the center

Step-by-step explanation:

Not much info... But if the red line is half way cross the circle (to the center, then it is the radius). If it is all the way through the circle ( splitting circle in half, then it is diameter)

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NEED HELP ASAP GIVING BRAINLIST!!!!!
lbvjy [14]

Answer:

Top left: x^2 +8x +15

Top right: x^2 +3x -18

Bottom left: x^2 -3x -18

Bottom right: x^2 -10x +16

Step-by-step explanation:

6 0
2 years ago
The difference between nine times number and thirty
svetlana [45]
9x-30 I’m pretty sure!
We are finding the difference, which means subtract! Nine times a number would be 9x and since it’s difference you would subtract it by 30.
3 0
2 years ago
Write a quadratic function f whose zeros are 3 and -10.<br> f(x) =
andreyandreev [35.5K]

Answer:

f(x)= x^2 + 7x - 30

5 0
3 years ago
What is the vertex of (x) = –16x² + 64x + 80.
cricket20 [7]

Answer:

<h3>            (2, 124)</h3>

Step-by-step explanation:

f(x) = a(x - h)² + k      - the  vertex form of the equation of the parabola with vertex (h, k)

f(x) = -16x^2+ 64x + 80\\\\f(x) = -16(x^2- 4x) + 80\\\\f(x) = -16(\underline {x^2-2\cdot2x\cdot2+2^2}-2^2) + 80\\\\f(x) = -16\big[(x-2)^2-4\big] + 80\\\\f(x) = -16(x-2)^2+64 + 80\\\\\bold{f(x)=-16(x-2)^2+124\quad\implies\quad h=2\,,\quad k=124}

<u>The vertex is </u><u>(2, 124)</u>

7 0
3 years ago
What is the pressure in atmospheres exerted by a 0.500 mole sample of nitrogen gas in a 10.0 L container at 25.0°C?
drek231 [11]

Answer:

1.2218 atm

Step-by-step explanation:

From ideal gas formula,

PV=nRT

Where n= number of moles

V= volume

T= temperature=25.0°C

= (273 + 25) = 298 K

R= gas constant = 0.082 l atm /K mol.

Making P subject of formula we have

P= [nRT] /V

Then substitute the values we have

P= [0.5 x 0.082 x 298] / 10

P= 1.2218 atm

6 0
3 years ago
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