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cricket20 [7]
3 years ago
12

Review

Mathematics
1 answer:
miv72 [106K]3 years ago
4 0

Step-by-step explanation:

the surface area is my head times my leg which is basically my eyes

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You could calculate how large something is if you only have one half measure?
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3 years ago
Geometry. Answer the question in the photo.
Elanso [62]

Answer:

5

Step-by-step explanation:

Since, A, B, C, D are collinear.

\implies A - B - C - D \\  \therefore \: AD = (AB + BC) + CD \\  \therefore \: 18 = AC + CD..  (\because AB + BC =AC) \\  \therefore \: 18 = 8 + CD \\  \therefore \: 18  - 8 = CD \\ \therefore \: 10 = CD \\  \\  \because \: BC + CD = BD \\ BC  = BD - CD \\  BC  = 15 - 10 \\ BC  = 5 \\

5 0
3 years ago
What is f(x) = 7x2 42x written in vertex form? f(x) = 7(x 6)2 – 6 f(x) = 7(x 6)2 – 42 f(x) = 7(x 3)2 – 9 f(x) = 7(x 3)2 – 63.
ioda

The vertex form of the function f(x) is \rm f(x)= 7 ( x + 3 )^2 - 63.

<h2>Given </h2>

Function; \rm f(x) = 7x^2 + 42x

<h3>What is the vertex form of function?</h3>

The vertex of a parabola is the point at which the parabola passes through its axis of symmetry.

The standard equation which represents the vertex form of the function is;

\rm f(x) =(x-h)^2+k^2

Where h and k are vertexes of the given parabola.

The function is in vertex form;

\rm f(x)= 7 x^2 + 42 x\\\\ f(x) = 7 ( x^2+ 6 x ) \\\\ f(x)= 7 ( ( x^2+ 6 x + 9 ) - 9 ) \\\\ f(x)= 7 ( x + 3 )^2 - 63

Hence, the vertex form of the function f(x) is \rm f(x)= 7 ( x + 3 )^2 - 63.

To know more about the Vertex form lick the link given below.

brainly.com/question/9070346

6 0
2 years ago
How much of a radioactive substance must be presented to decay to 40 grams in 9 years if the half-life of the substance is 4.6 y
leonid [27]

Answer:

155.25 grams

Step-by-step explanation:

40 = X(½^(9/4.6))

X = 40 ÷ (½^(9/4.6))

X = 155.25 grams

6 0
4 years ago
Written as a simplified polynomial in standard form, what is the result when
kompoz [17]

2x-8 - (2x+7)^2\\\\=2x-8 -(4x^2 + 2\cdot 2x \cdot 7 + 7^2)\\\\=2x-8-(4x^2 + 28x +49)\\\\=2x - 8 -4x^2-28x -49\\\\=-4x^2 -26x -57\\\\

8 0
3 years ago
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